Municipality

Bulan

Bulan is a municipality in Sorsogon, Bicol Region, Philippines. Its population was 106,919 in the 2024 census, and it has 63 barangays.

Population: 2024 Census
Places: PSGC 2Q 2026
Checked by Scene: October 8, 2026
Page updated: October 9, 2026

PlacesPeopleDensityGrowth

People · 2024 Census

Under 690
690 to 1,100
1,100 to 1,800
1,800 to 3,100
3,100 and over

The same steps colour every map of barangays in the Atlas, so a colour means the same range everywhere.

Density · people per km², 2024

Under 160
160 to 340
340 to 700
700 to 2,600
2,600 and over

The same steps colour every map of barangays in the Atlas, so a colour means the same range everywhere.

Growth a year · 2020–2024

Fell by more than 1% a year
Fell, by up to 1% a year
Grew, by under 1% a year
Grew by 1 to 2% a year
Grew by 2% a year or more

Each place's yearly change between the 2020 and 2024 censuses, on the same steps as every map in the Atlas.

Borders from UN OCHA (PSA and NAMRIA), a guide and not the legal boundary^[3]Open in OpenStreetMap

PeopleSources
106,919
people counted in the 2024 censusCensusA count of every person in the country, all on one day. The 2024 census counted people as they were on 1 July 2024.More in the glossary
Up 13.8% from 2010 to 2024
Rank by peopleSources
2nd
of the 15 cities and municipalities of Sorsogon by population, 2024Rank and shareWorked out by Scene from the PSA's counts: where a place stands among the places listed with it, and how many of every 100 of its parent's people live in it.More in the glossary
About 13 of every 100 people in Sorsogon lived in Bulan in 2024 (12.65%)
Inside itSources
63
barangays
LandSources
208.25 km²
of land, 2019 masterlistLand areaThe land inside the place's official boundary. A square kilometre is a square 1 km on each side, about the size of 140 football fields.Explained by Scene: Bulan's land would fill a square about 14.4 km on each side. That is only a way to picture its size: its real shape is on the map.More in the glossary
Average density, 2024: 513 people per km²Population densityHow crowded a place is on average: its people divided by its land area. 1,000 people per square kilometre is 10 people per hectare, a square of 100 by 100 metres.Explained by Scene: About 5 people per hectare if everyone were spread evenly across the land. In fact people live closer together in towns and farther apart in the countryside.More in the glossary
HomesSources
26,446
households in 2024HouseholdA person living alone, or people who sleep in the same home and share their meals. A family may be one household or several.More in the glossary
4.0 people in each, on average, in 2024
Town or countrySources
15.6%
About 16 of every 100 people lived in urban barangays in 2024Urban barangayThe PSA counts a barangay as urban when it has 5,000 people or more, or a big employer, or several businesses and public services close by. Every barangay in Metro Manila is urban.More in the glossary

PSGC codePSGC codeThe code the Philippine Statistics Authority gives every place, so each one is known exactly, even when two share a name.More in the glossary: 0506203000^[4]Formerly 056203000
ZIP code: 4706^{[16, 17, 18]}

People

Bulan had 106,919 people in the 2024 census, up 13.8% from 2010.

People at each census since 1960

Counts from 2000 on are on today’s borders; earlier counts are as the place was then, so the line may step where a border moved.

Bulan had the 2nd most people of the 15 cities and municipalities of Sorsogon in 2024^[1]

1Sorsogon City187,670
2Bulan106,919
3Pilar76,908
4Castilla61,308
5Gubat61,095
6Irosin59,540
7Donsol51,781

All 15 cities and municipalities of Sorsogon

In 2024, the 10 barangays with the most people held about 37 of every 100 of its people^[2]

Zone II Pob.5,7215 in 100
San Vicente5,4245 in 100
J.P. Laurel4,1284 in 100
Zone VII Pob.4,1014 in 100
Lajong3,6613 in 100
Otavi3,4743 in 100
Benigno S. Aquino3,4583 in 100
Managanaga3,3233 in 100
San Isidro3,1773 in 100
Butag3,0753 in 100

See all 63 barangays of Bulan

Age structure · 2020 Census^[37]People living in households, by age and sex

About 34 of every 100 are children under 15 (33.9%)
About 61 of every 100 are of working age, 15 to 64 (60.7%)
About 5 of every 100 are 65 or older (5.4%)

MenWomen

The figures by age

People by age group, men and women
Age	People	Men	Women
0 - 4	11,906	6,182	5,724
5 - 9	11,964	6,338	5,626
10 - 14	11,710	6,021	5,689
15 - 19	11,481	5,932	5,549
20 - 24	9,501	4,908	4,593
25 - 29	7,710	4,022	3,688
30 - 34	6,395	3,302	3,093
35 - 39	6,060	3,095	2,965
40 - 44	5,676	2,983	2,693
45 - 49	5,169	2,616	2,553
50 - 54	4,832	2,462	2,370
55 - 59	3,804	1,923	1,881
60 - 64	3,043	1,510	1,533
65 - 69	2,155	1,006	1,149
70 - 74	1,602	631	971
75 - 79	1,035	363	672
80 years and over	921	253	668

Every figure, census by census

People, 2024 CensusCensusA count of every person in the country, all on one day. The 2024 census counted people as they were on 1 July 2024.More in the glossary: 106,919^{[1, 2]}
Households, 2024HouseholdA person living alone, or people who sleep in the same home and share their meals. A family may be one household or several.More in the glossary: 26,446^{[1, 2]}
People in each household, 2024: 4.0 on average^{[1, 2]}
Share of Sorsogon, 2024Rank and shareWorked out by Scene from the PSA's counts: where a place stands among the places listed with it, and how many of every 100 of its parent's people live in it.More in the glossary: 12.65%^[1]
In urban barangays, 2024Urban barangayThe PSA counts a barangay as urban when it has 5,000 people or more, or a big employer, or several businesses and public services close by. Every barangay in Metro Manila is urban.More in the glossary: 15.6% (16,699 people)^[5]
Men and women, 2020: 53,547 men, 51,417 women^[37]People living in households

Population at each census, with its source
Census	Population	Growth since the census before	Households	People per household
2024as of July 1, 2024	106,919^{[1, 2]}	0.39% a year	26,446	4.0
2020as of May 1, 2020	105,190^[1]	1.05% a year	—	—
2015as of August 1, 2015	100,076^[1]	1.21% a year	—	—
2010as of May 1, 2010	93,943^[1]	—	—	—
2007as of August 1, 2007; as it was then	91,730^[35]	1.44% a year	—	—
2000as of May 1, 2000; on today’s borders	82,688^{[35, 36]}	2.34% a year	—	—
1995as of September 1, 1995; as it was then	74,219^[35]	2.09% a year	—	—
1990as of May 1, 1990; as it was then	66,450^[35]	0.87% a year	—	—
1980as of May 1, 1980; as it was then	60,911^[35]	1.69% a year	—	—
1975as of May 1, 1975; as it was then	56,013^[35]	0.67% a year	—	—
1970as of May 6, 1970; as it was then	54,180^[35]	1.50% a year	—	—
1960as of February 15, 1960; as it was then	46,520^[35]	—	—	—

Barangays

Bulan is made up of 63 barangays.

Barangays of Bulan. Each column heading sorts the table.
	^{[2, 3, 5, 6, 7]}	Share (2024)			Urban or rural
Zone II Pob.	5,721	5.35%	−0.47% a year	about 0.156 km²	Urban
San Vicente	5,424	5.07%	0.52% a year	about 1.20 km²	Urban
J.P. Laurel	4,128	3.86%	−0.20% a year	about 2.19 km²	Rural
Zone VII Pob.	4,101	3.84%	−0.04% a year	about 0.255 km²	Rural
Lajong	3,661	3.42%	0.14% a year	about 2.39 km²	Urban
Otavi	3,474	3.25%	0.15% a year	about 3.17 km²	Rural
Benigno S. Aquino	3,458	3.23%	−0.69% a year	about 1.65 km²	Rural
Managanaga	3,323	3.11%	−0.17% a year	about 0.987 km²	Rural
San Isidro	3,177	2.97%	0.19% a year	about 6.60 km²	Rural
Butag	3,075	2.88%	0.10% a year	about 6.61 km²	Rural
San Francisco	2,749	2.57%	−1.02% a year	about 6.29 km²	Rural
Fabrica	2,745	2.57%	0.25% a year	about 2.99 km²	Rural
Obrero	2,575	2.41%	−3.03% a year	about 0.125 km²	Rural
Zone VIII Pob.	2,371	2.22%	2.00% a year	about 0.301 km²	Rural
Inararan	2,337	2.19%	0.44% a year	about 1.48 km²	Rural
San Rafael	2,121	1.98%	1.57% a year	about 2.50 km²	Rural
Namo	2,044	1.91%	0.74% a year	about 5.08 km²	Rural
Quezon	2,008	1.88%	0.00% a year	about 1.34 km²	Rural
G. Del Pilar	1,968	1.84%	0.76% a year	about 3.57 km²	Rural
Santa Remedios	1,968	1.84%	2.90% a year	about 1.10 km²	Rural
Gate	1,946	1.82%	0.04% a year	about 2.75 km²	Rural
Beguin	1,900	1.78%	1.00% a year	about 4.46 km²	Rural
Calomagon	1,848	1.73%	0.78% a year	about 6.43 km²	Rural
San Juan Bag-o	1,742	1.63%	0.76% a year	about 1.29 km²	Rural
Taromata	1,626	1.52%	1.36% a year	about 7.40 km²	Rural
Nasuje	1,588	1.49%	0.93% a year	about 1.41 km²	Rural
Zone V Pob.	1,565	1.46%	1.60% a year	about 0.145 km²	Rural
Marinab	1,502	1.4%	1.74% a year	about 4.79 km²	Rural
Somagongsong	1,493	1.4%	0.47% a year	about 4.14 km²	Rural
San Ramon	1,480	1.38%	−0.06% a year	about 2.91 km²	Rural
Santa Teresita	1,430	1.34%	1.98% a year	about 1.86 km²	Rural
N. Roque	1,299	1.21%	0.34% a year	about 1.85 km²	Rural
Zone IV Pob.	1,276	1.19%	−0.59% a year	about 0.107 km²	Urban
M. Roxas	1,250	1.17%	−0.21% a year	about 4.13 km²	Rural
Jamorawon	1,205	1.13%	8.15% a year	about 2.38 km²	Rural
Magsaysay	1,204	1.13%	0.42% a year	about 3.60 km²	Rural
Montecalvario	1,166	1.09%	0.21% a year	about 3.27 km²	Rural
San Juan Daan	1,120	1.05%	−0.74% a year	about 5.53 km²	Rural
Aguinaldo	1,090	1.02%	−0.52% a year	about 5.76 km²	Rural
Abad Santos	1,036	0.97%	0.05% a year	about 1.19 km²	Rural
Danao	1,028	0.96%	0.21% a year	about 3.47 km²	Rural
Zone VI Pob.	957	0.9%	−0.42% a year	about 0.0593 km²	Rural
Calpi	928	0.87%	1.96% a year	about 6.13 km²	Rural
J. Gerona	924	0.86%	0.10% a year	about 8.91 km²	Rural
Libertad	911	0.85%	2.80% a year	about 0.0222 km²	Rural
Cadandanan	847	0.79%	1.62% a year	about 3.61 km²	Rural
Sigad	819	0.77%	0.18% a year	about 3.41 km²	Rural
Osmeña	802	0.75%	3.00% a year	about 1.53 km²	Rural
R. Gerona	782	0.73%	1.14% a year	about 3.72 km²	Rural
Bical	711	0.66%	1.33% a year	about 5.60 km²	Rural

The 50 with the most people, of 63. See all 63 barangays of Bulan

Areas are approximate: each is measured inside the barangay's border on UN OCHA's map, which is a guide, not the legal boundary.

Land & Environment

Bulan covers 208.25 km² of land, 513 people for every km² in 2024. Its land rises to 531 m above the sea and it has 35.4 km of coast.

Land areaLand areaThe land inside the place's official boundary. A square kilometre is a square 1 km on each side, about the size of 140 football fields.More in the glossary: 208.25 km²^[6]As listed in the 2019 Masterlist of Land Areas (LMB, DENR)
Average density, 2024Population densityHow crowded a place is on average: its people divided by its land area. 1,000 people per square kilometre is 10 people per hectare, a square of 100 by 100 metres.More in the glossary: 513 people per km²^[6]
Coordinates: 12.69115° N, 123.91897° E^[3]The point inside its border farthest from every edge, so it always falls within the place.

Height above the sea^[31]

Lowest: Sea level
Average: 76 m
Highest: 531 m

Heights from the Copernicus DEM, a 30 m model of the surface: it reads the tops of trees and roofs, not the bare ground, over the land inside the border, the sea left out. Produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved.

Water, coast and peaks

35.4 km of coastline^[32]

Peaks^[32]

Culangalanvolcano360 m
Mount Culangalanheight not mapped
Verde Hillheight not mapped

Named rivers, lakes and peaks as OpenStreetMap mapped them on 30 September 2026, and the coast within 150 m of the border. Map data © OpenStreetMap contributors, under the Open Database License.

Climate

Climate typeClimate typePAGASA sorts the country's climate into four types by when the rain falls. Type I has a dry season from November to April and a wet one for the rest of the year; Type II has no dry season, with the most rain from December to February; Type III has a short dry season; Type IV has rain spread through the year.More in the glossary

Type IV^[33]

Rain spread fairly evenly through the year, with no dry season.

Covers about 89 of every 100 parts of its land. Read by Scene off PAGASA's climate map, so approximate: the type that covers most of the place's land.

At Masbate, the nearest PAGASA station, 48 km away^[34]Averages for 1991 to 2020: 2,027 mm of rain on 146 days a year; 28.4 °C on average

Rain each month Average temperature

The figures by month

Climate at Masbate, 1991 to 2020, by month
Month	Rain	Rainy days	Average	High	Low
January	195 mm	14	26.9 °C	30.4 °C	23.4 °C
February	114 mm	10	27.2 °C	31.0 °C	23.4 °C
March	111 mm	8	28.0 °C	32.0 °C	24.0 °C
April	50 mm	5	29.1 °C	33.2 °C	24.9 °C
May	127 mm	8	29.7 °C	33.7 °C	25.7 °C
June	145 mm	11	29.4 °C	33.3 °C	25.5 °C
July	209 mm	15	28.8 °C	32.5 °C	25.1 °C
August	169 mm	14	28.8 °C	32.5 °C	25.1 °C
September	205 mm	15	28.8 °C	32.5 °C	25.0 °C
October	204 mm	14	28.6 °C	32.4 °C	24.9 °C
November	205 mm	15	28.3 °C	31.9 °C	24.7 °C
December	294 mm	17	27.5 °C	30.9 °C	24.1 °C
The year	2,027 mm	146	28.4 °C	32.2 °C	24.7 °C

A station's figures describe the place around it only roughly: inland and in the hills it may be cooler and wetter. The station stands 9 m above the sea.

Life & Economy

About 27 of every 100 people lived below the poverty line in 2021.

Poverty, 2021Poverty incidenceHow many of every 100 people live in families whose income is below the poverty line: what a person needs in a year for food and other basic needs, as the PSA sets it for each province. It is an estimate, from a survey or, for a town, a statistical model, so the PSA gives a range it is likely to fall in.More in the glossary: 27.4% of people^[21]Below the poverty line, by the PSA's estimate for every town.
Income classIncome classThe Department of Finance sorts provinces, cities and municipalities into classes by their average yearly income over recent years: 1st class has the most. It measures the local government's income, not how well off its people are.More in the glossary: 1st class^[4]

About 27 of every 100 people in Bulan lived below the poverty line in 2021 (27.4%)^[21]

The PSA's model for every town puts it between 24.8% and 30.1%, with 90% confidence.

Public places

3government offices
2hospitals and health centres
71schools
4places of worship
1market
3stations and terminals
3parks

Counted from OpenStreetMap^{[3, 8]}. Schools, places of worship, barangay halls and places known only by a common name, such as a chapel, are listed on each barangay's page.

Government offices2

Hospitals and health centres2

Markets1

Bulan Public Market · Zone IV Pob.

Stations and terminals3

Parks3

As OpenStreetMap maps them on September 30, 2026. Map data © OpenStreetMap contributors, under the Open Database License.

Government & Leaders

A mayor leads Bulan. Its local laws, called ordinances, are passed by the Sangguniang Bayan (the municipal council), led by the vice mayor. The mayor, the vice mayor and the council's elected members serve three-year terms, and none may serve more than three in a row.^{[14, 15]}

Legislative districtLegislative districtThe area that elects one member of the House of Representatives. A big province or city may have several.More in the glossary: 2nd district of Sorsogon^{[19, 20]}

Leaders

The mayor and vice mayor elected at each election since 2001, as COMELEC's lists of the elected name them, and those in office now, as the DILG's directory lists them.

2025–2028In office as of February 2026
Mayor
Romeo Almoguerra Gordola^[22]
Vice mayor
Chezka Mae Ballesteros Robles^[22]
2022–2025
Mayor
Romeo Almoguerra Gordola^[23]
Vice mayor
Chezka Mae Ballesteros Robles^[23]
2019–2022
Mayor
Romeo Almoguerra Gordola^[24]
Vice mayor
Luis Chavez Delmonte^[24]
2016–2019
Mayor
Helen Cheng De Castro^[25]
Vice mayor
Romeo Almoguerra Gordola^[25]
2013–2016
Mayor
Marnellie Ballesteros Robles^[26]
Vice mayor
Patricia Lim Guran^[26]
2010–2013
Mayor
Helen Cheng De Castro^[27]
Vice mayor
Marnellie Ballesteros Robles^[27]
2007–2010
Mayor
Helen Cheng De Castro^[28]
Vice mayor
Manuel Dreu Gogola Jr.^[28]
2004–2007
Mayor
Helen De Castro^[29]
Vice mayor
Manuel Gogola Jr.^[29]
2001–2004
Mayor
Guillermo O. De Castro^[30]
Vice mayor
Toby A. Gonzales^[30]

Mayors and vice mayors of Bulan, by term
Term	Mayor	Vice mayor
2025–2028In office as of February 2026	Romeo Almoguerra Gordola^[22]	Chezka Mae Ballesteros Robles^[22]
2022–2025	Romeo Almoguerra Gordola^[23]	Chezka Mae Ballesteros Robles^[23]
2019–2022	Romeo Almoguerra Gordola^[24]	Luis Chavez Delmonte^[24]
2016–2019	Helen Cheng De Castro^[25]	Romeo Almoguerra Gordola^[25]
2013–2016	Marnellie Ballesteros Robles^[26]	Patricia Lim Guran^[26]
2010–2013	Helen Cheng De Castro^[27]	Marnellie Ballesteros Robles^[27]
2007–2010	Helen Cheng De Castro^[28]	Manuel Dreu Gogola Jr.^[28]
2004–2007	Helen De Castro^[29]	Manuel Gogola Jr.^[29]
2001–2004	Guillermo O. De Castro^[30]	Toby A. Gonzales^[30]

History & Identity

Stories from Bicol Region

Bulan has no Story of its own yet. This one is about Bicol Region, which Bulan is part of.

Film, 0:56
Bicol Region
Bicol Region: the day Mayon moved a town
Tradition says Bicol is named for a bending river. On 1 February 1814 Mayon buried Cagsawa; the town moved to Daraga, and in 1914 the Bicol Region made a pilgrimage to the ruins.
Why It's Called That

All Stories

Created: Per the provincial timeline, in 1801 Bulan became a pueblo civil within Albay province, with Don Juan Vicente as first gobernadorcillo; no decree is named by the source.^[9]

How it got its name

Sources differOne account in the provincial page says Spaniards sailing north from the old port of Ticao were struck by the beauty of a big moon and named the town Bulan when they landed.^[10]

Sources differAnother account in the same page says two fishermen, asked by Spaniards the name of the place, thought they were asked about the full moon and answered Bulan; some Spanish maps spell it Builan, which nobody can explain.^[10]

Its story

Bulan began as a large settlement that was a barrio of Gibalon; it became its own parish in 1799.^[11]

It was constituted a pueblo civil under Albay in 1801.^[9]

In February 1901 Rufino Gerona, presidente of Bulan, and members of the newly organized Federal party travelled to Irosin to urge peace.^[12]

On 22 February 1901 the revolutionary commander Funes marched into Bulan and surrendered his firearms to the American post commander.^[12]

Korean soldiers under Japanese commanders landed at Bulan on the evening of 13 December 1941.^[13]

Timeline

1799
Bulan became a separate parish, split from Gibalon.^[11]
1801
Bulan constituted a pueblo civil under Albay.^[9]
22 February 1901
Funes' command surrendered its firearms at Bulan to the American post commander.^[12]
13 December 1941
Korean soldiers under Japanese commanders arrived at Bulan.^[13]

Nearby

Bulan shares a border with Irosin, Juban, Magallanes and Matnog.

How it compares

Bulan beside Sorsogon, and where it stands among the cities and municipalities of Sorsogon.

Bulan beside Sorsogon
Figure	Bulan	Sorsogon	Rank among the cities and municipalities of Sorsogon
People, 2024CensusA count of every person in the country, all on one day. The 2024 census counted people as they were on 1 July 2024.More in the glossary	106,919^{[1, 2]}	845,066	2nd of 15
Growth a year, 2020–2024Growth a yearHow fast the number of people changed each year between two censuses. 1% a year means about 1 more person for every 100 people, each year.More in the glossary	0.39% a year^{[1, 2]}slower	0.47% a year	9th of 15
People per km², 2024Population densityHow crowded a place is on average: its people divided by its land area. 1,000 people per square kilometre is 10 people per hectare, a square of 100 by 100 metres.More in the glossary	513^[6]more crowded	424	3rd of 15
Land areaLand areaThe land inside the place's official boundary. A square kilometre is a square 1 km on each side, about the size of 140 football fields.More in the glossary	208.25 km²^[6]	1,993.11 km²	2nd of 15
People in each household, 2024HouseholdA person living alone, or people who sleep in the same home and share their meals. A family may be one household or several.More in the glossary	4.0^{[1, 2]}about the same	4.0	not ranked
In urban barangays, 2024Urban barangayThe PSA counts a barangay as urban when it has 5,000 people or more, or a big employer, or several businesses and public services close by. Every barangay in Metro Manila is urban.More in the glossary	15.6%^[5]about the same	15.7%	not ranked

Shares a border with^[3]

How far, in a straight line^[3]

Sorsogon City, the capital of Sorsogon: 37.3 km north
Manila: 380.4 km northwest

In a straight line between the points inside each place farthest from its edges, not by road.

The nearest towns and cities^[3]

IrosinSorsogon12.2 km east
MagallanesSorsogon12.8 km north
JubanSorsogon15.4 km north
MatnogSorsogon16.1 km southeast
Santa MagdalenaSorsogon17.4 km east
BulusanSorsogon21.4 km east

Sources

Page updated October 9, 2026. Sources checked by Scene October 8, 2026.

1.Philippine Statistics Authority. Population and Annual Population Growth Rate of the Philippines and its Regions, Provinces, and Highly Urbanized Cities Based on the 2010, 2015, 2020 and 2024 Population Census (OpenSTAT table 0211A6DAPG0). Published August 7, 2026. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
2.Philippine Statistics Authority. Total Population, Household Population, and Number of Households by Province, City, Municipality, and Barangay as of 01 July 2024: Bicol Region (OpenSTAT table 0051A6DTPH4). Published August 4, 2026. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
3.UN OCHA, from the PSA and NAMRIA. Philippines: Subnational Administrative Boundaries (COD-AB), barangay layer. Published February 13, 2025. Read by Scene September 25, 2026. CC BY-IGO 3.0. Open the source
4.Philippine Statistics Authority. Philippine Standard Geographic Code (PSGC), 2nd Quarter 2026: Publication Datafile. Published June 30, 2026. Read by Scene September 24, 2026. CC BY (PSA Terms of Use). Open the source
5.Philippine Statistics Authority. Total Population and Urban Population by Urban Classification and Region, Province, Highly Urbanized City, City/Municipality and Barangay: Philippines, 2024 (OpenSTAT table 0231A6DPUP0). Published August 7, 2026. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
6.Philippine Statistics Authority, from the Land Management Bureau (DENR). Population, Land Area, Population Density, and Percent Change in Population Density by Region, Province/Highly Urbanized City, and City/Municipality: 2015, 2020, and 2024 (OpenSTAT table 0221A6DLPD0). Published August 7, 2026. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
7.Philippine Statistics Authority. Philippine Standard Geographic Code (PSGC), 4th Quarter 2022: Publication Datafile, with the 2015 and 2020 census counts (the PSA's file, as the Internet Archive keeps it). Published December 31, 2022. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
8.OpenStreetMap contributors. Named public places in OpenStreetMap: schools, hospitals and health centres, places of worship, government offices, markets, stations, parks, beaches and monuments, from Geofabrik's extract of the Philippines. Published September 30, 2026. Read by Scene October 2, 2026. ODbL 1.0. Open the source
9.Sorsogon Provincial Government. History and Culture (timeline, page 11). Read by Scene October 3, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
10.Provincial Government of Sorsogon. Attraction Map: municipality notes (Geography and History of each town). Read by Scene October 4, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
11.Sorsogon Provincial Government. History and Culture (timeline, page 12). Read by Scene October 3, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
12.Sorsogon Provincial Government. History and Culture (timeline, page 6). Read by Scene October 3, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
13.Sorsogon Provincial Government. History and Culture (timeline, page 5). Read by Scene October 3, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
14.Congress of the Philippines. Republic Act No. 7160: the Local Government Code of 1991. Published October 10, 1991. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
15.1986 Constitutional Commission. The 1987 Constitution of the Republic of the Philippines. Published February 2, 1987. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
16.Philippine Postal Corporation (PHLPost). ZIP Code Locator. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1; a government-owned corporation's work is the Government's, Section 171.9). Open the source
17.Philippine Postal Corporation (PHLPost). ZIP Code Locator, as the Internet Archive captured it on 2022-05-21 (its SHA-1 matches the Archive's index). Published May 21, 2022. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1; a government-owned corporation's work is the Government's, Section 171.9). Open the source
18.Philippine Postal Corporation (PHLPost). Philippine ZIP Codes (the directory "ZipCode 2019.pdf", made 2019-12-02), as the Internet Archive keeps it (its SHA-1 matches the Archive's index). Published December 2, 2019. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1; a government-owned corporation's work is the Government's, Section 171.9). Open the source
19.1986 Constitutional Commission (text from the Chan Robles Virtual Law Library). Ordinance appended to the 1987 Constitution, apportioning the seats of the House of Representatives. Published February 2, 1987. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
20.Commission on Elections (COMELEC). 2025 National and Local Elections: results, certificates of canvass of every province, city and municipality. Published May 2025. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
21.Philippine Statistics Authority. Municipal and City Level Small Area Poverty Estimates; 2018 and 2021 (the PSA's workbook "2018 - 2021 SAE_with PSGC_noHUC.xlsx", sheet "2018-2021_NoHUC", as the Internet Archive keeps it). Published April 2, 2024. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
22.Department of the Interior and Local Government (DILG). Directory of LGU Elective Officials for Term 2025-2028 as of February 2026 (its sheet: Consolidated List of Officials for Election Terms (2025-2028)), released through the FOI portal. Published February 2026. Read by Scene October 2, 2026. A work of the Government of the Philippines: RA 8293, Section 176 (no copyright subsists in it; exploiting it for profit needs the agency's prior approval). Open the source
23.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal Candidates, May 9, 2022 National and Local Elections. Published December 23, 2025. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
24.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal Candidates, May 13, 2019 National and Local Elections. Published December 23, 2025. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
25.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal Candidates, May 9, 2016 National and Local Elections (its pages are headed "LIST OF ELECED CITY/MUNICIPAL CANDIDATES"). Published January 12, 2026. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
26.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal Candidates, May 13, 2013 National and Local Elections. Published January 12, 2026. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
27.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal Candidates, May 10, 2010 National and Local Elections. Published January 8, 2026. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
28.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal Candidates, May 14, 2007 National and Local Elections. Published January 14, 2026. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
29.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal Candidates, May 10, 2004 National and Local Elections (its pages are headed "LIST OF CITY/MUNICIPAL CANDIDATES"). Published January 14, 2026. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
30.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal Candidates, May 14, 2001 National and Local Elections. Published January 8, 2026. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
31.European Union and the European Space Agency (Copernicus), from DLR and Airbus Defence and Space (WorldDEM). Copernicus DEM GLO-30: global digital surface model at 30 m, one-degree tiles (2021 release). Published 2021. Read by Scene October 2, 2026. Copernicus DEM GLO-30 licence: free, any use including commercial, with the Copernicus notice. Open the source
32.OpenStreetMap contributors, extract by Geofabrik. Named rivers, lakes, reservoirs, peaks and the coastline of the Philippines in OpenStreetMap (Geofabrik extract, cut by osmium). Published September 30, 2026. Read by Scene October 2, 2026. ODbL 1.0. Open the source
33.Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), Climatology and Agrometeorology Division. Climate Map of the Philippines (1951-2010), Modified Coronas Climate Classification. Published August 2014. Read by Scene October 2, 2026. A work of the Government of the Philippines: no copyright (RA 8293 s.176.1); PAGASA's approval is needed to use it for profit. Open the source
34.Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), Climatology and Agrometeorology Division. Climatological Normals, 1991-2020, by synoptic station (one PDF each). Published January 2022. Read by Scene October 2, 2026. A work of the Government of the Philippines: no copyright (RA 8293 s.176.1); PAGASA's approval is needed to use it for profit. Open the source
35.Philippine Statistics Authority. 2015 Census of Population, Statistical Tables, Table 1: Population Enumerated in Various Censuses by City/Municipality, 1960-2015 (one workbook for each province, highly urbanized city and region). Published 2017. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
36.Philippine Statistics Authority. 2020 Census of Population and Housing: Table A (Population and Annual Growth Rate for the Philippines and its Regions, Provinces and Highly Urbanized Cities) and Table B (Population and Annual Growth Rates by Province, City and Municipality, by Region). Published July 2021. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
37.Philippine Statistics Authority. 2020 Census of Population and Housing: Household Population by Age Group and Sex, for the Philippines and its regions, provinces, cities and municipalities (revised file, psa.gov.ph/system/files/phcd/2022-12/). Published December 2022. Read by Scene October 8, 2026. CC BY (PSA Terms of Use). Open the source

Scene adds what the sources do not print themselves: growth rates, shares, barangay areas and densities, coordinates, neighbours and distances, each computed from the figures and borders above. How each is made.

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Cite this page

Scene.ph. “Bulan, Sorsogon.” Scene Atlas. Updated October 9, 2026. https://scene.ph/atlas/sorsogon/bulan