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Ranking

Fastest-growing cities and municipalities in Ilocos Sur

Alilem (Ilocos Sur) grew fastest of the 34 cities and municipalities in Ilocos Sur that can be compared: up 5.1%, from 7,361 people in 2020 to 7,736 in 2024.[1, 2]

Below are all 34 cities and municipalities, ordered by how many more people they had in 2024 than in 2020, in percent, each with its 2020 count and its change since.

People are counted as of July 1, 2024 (the 2024 Census of Population) and May 1, 2020 (the 2020 Census of Population and Housing), both by the Philippine Statistics Authority.

Open Ilocos Sur
Fastest-growing cities and municipalities in Ilocos Sur, top 34
RankNameProvince or regionPeople, 2024People, 2020Change since 2020
1AlilemIlocos Sur7,7367,361+5.1%
2San EmilioIlocos Sur7,5137,206+4.3%
3CervantesIlocos Sur20,06519,449+3.2%
4LidliddaIlocos Sur4,8464,705+3.0%
5San EstebanIlocos Sur8,6218,381+2.9%
6SuyoIlocos Sur11,05110,766+2.7%
7MagsingalIlocos Sur31,97031,308+2.1%
8BurgosIlocos Sur13,02612,793+1.8%
9QuirinoIlocos Sur9,4609,306+1.7%
10SantiagoIlocos Sur19,77119,471+1.5%
11SantaIlocos Sur15,16414,992+1.2%
12Santo DomingoIlocos Sur29,37229,041+1.1%
13Vigan CityIlocos Sur54,49853,935+1.0%
14SigayIlocos Sur2,5772,552+1.0%
15Santa LuciaIlocos Sur26,20025,966+0.9%
16SalcedoIlocos Sur11,19611,110+0.8%
17CaoayanIlocos Sur19,71519,574+0.7%
18BanayoyoIlocos Sur7,9537,931+0.3%
19San IldefonsoIlocos Sur8,2138,190+0.3%
20CabugaoIlocos Sur38,98138,884+0.3%
21Santa MariaIlocos Sur30,07630,006+0.2%
22SinaitIlocos Sur26,05925,998+0.2%
23GalimuyodIlocos Sur10,26310,244+0.2%
24TagudinIlocos Sur41,60641,538+0.2%
25San JuanIlocos Sur26,70926,674+0.1%
26NarvacanIlocos Sur46,26546,234+0.1%
27BantayIlocos Sur37,08837,118−0.1%
28Santa CruzIlocos Sur41,29641,366−0.2%
29Candon CityIlocos Sur61,31561,432−0.2%
30San VicenteIlocos Sur13,07413,118−0.3%
31Santa CatalinaIlocos Sur14,31914,493−1.2%
32NagbukelIlocos Sur5,3705,465−1.7%
33Gregorio del PilarIlocos Sur4,3854,472−2.0%
34SugponIlocos Sur4,2384,930−14.0%

How the comparison is kept fair

34 of the 34 cities and municipalities in Ilocos Sur can be compared. The other 0 are left out.

  • Only places with at least 1,000 people in the 2020 census are ranked, so a village that gained a few families does not top the list.
  • A place is ranked only if the same place was counted in both censuses. Scene leaves out a place the PSA's list of changes shows as created, divided, merged or given a new code since the 2020 census, a place another one was carved out of, and a place with no 2020 count.
  • The PSA's data carries no field that flags a changed border by itself; Scene reads the change list and the notes to each count, so a border change the PSA has not listed cannot be seen here.

The change is the percent difference between the two counts, as Scene works it out.

Sources

Every count here is the PSA's own, for the place as the PSA names it today. The change and the order are Scene's arithmetic on those counts. How Scene works out the rest.

  1. 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. 2.Philippine Statistics Authority. Philippine Standard Geographic Code (PSGC), 2nd Quarter 2026: Summary of Changes, every change to a place since 1977. Published June 30, 2026. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source

Scene works out the rest from these sources: growth rates, shares, areas, densities, coordinates, neighbours and distances. How.

Report a mistake on this page: write to hello@scene.ph with the page address.