한국어

Population of Sangnok-gu, Ansan-si

Resident registration data, June 2026 (MOIS)

Total population320,773people
Average age45.3yrs

Population structure

Population by age

10-year bands · by sex

Population by age and sex

Unit: people

Under 1010s20s30s40s👑 50s60s70s80s90s100+6,90914,07322,94122,84622,57331,84628,29610,2103,593470186,63013,55220,02218,20520,72632,05626,13811,4636,6431,50655

Male 163,776Female 156,997

Age structure

Unit: %

Youth 8.5%Working age 72.4%Seniors 19.1%72.4%19.1%

Youth 8.5%Working age 72.4%Seniors 19.1%

50s is the largest group, at 63,902 people.

Population change

Change over time

4-year trend

Unit: people

348,620 in 2022339,760 in 2023330,333 in 2024324,948 in 2025320,773 in 202620222023202420252026

348,620 in 2022320,773 in 2026

Down 8% over the past 4 years.

Population ranking

Sa-dong has the largest population of the 15 neighborhoods.

Population by region

15
  • YoungestSa-dong42.9 yrs
  • OldestPalgogil-dong58.2 yrs

There is a 15.3-year gap in average age between the youngest and the oldest area.

RegionPopulationShareAverage age
Sa-dong97,35930.4%42.9 yrs
Bono-dong72,35622.6%45.7 yrs
Wolpi-dong29,1809.1%45.2 yrs
Il-dong25,1457.8%45.8 yrs
Bugok-dong24,8177.7%46.2 yrs
Seongpo-dong23,9727.5%45.9 yrs
I-dong19,1716%46.1 yrs
Geongeon-dong14,2614.4%47.7 yrs
Suam-dong5,7711.8%50 yrs
Palgogi-dong2,7230.8%50.6 yrs
Jangsang-dong2,0640.6%52.3 yrs
Sasa-dong1,9120.6%54 yrs
Palgogil-dong1,6050.5%58.2 yrs
Yangsang-dong2950.1%56.3 yrs
Jangha-dong1420%57.3 yrs

The top three areas hold 62.0% of the population of Sangnok-gu, Ansan-si.

Other regions

Other districts in Gyeonggi

16

Frequently asked questions❓

Sangnok-gu, Ansan-si has 320,773 residents as of June 2026., 4,175 fewer than a year earlier.
Sa-dong, home to 97,359 residents — 30.4% of Sangnok-gu, Ansan-si.
It is 45.3 as of June 2026., close to the national average of 45.6. Among its neighborhoods, Sa-dong is youngest at 42.9 and Palgogil-dong oldest at 58.2.
It fell 8% over 4 years, from 348,620 in 2022 to 320,773 in June 2026.
This is resident registration data from Korea's Ministry of the Interior and Safety. Figures are as of the end of June 2026 and are updated monthly. The data is open under KOGL Type 1.
Resident registration counts people at their registered address. The census counts them where they actually live. The gap is widest in university towns and industrial areas, where many people never change their registered address.

Sources 🌐