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Population of Ilsanseo-gu, Goyang-si

Resident registration data, June 2026 (MOIS)

Total population276,121people
Average age45.3yrs

Population structure

Population by age

10-year bands · by sex

Population by age and sex

Unit: people

Under 1010s20s30s40s👑 50s60s70s80s90s100+6,99414,13316,12216,44318,54125,62321,5079,0014,07068686,69513,69115,56116,11420,55328,62322,24410,6777,2031,59833

Male 133,128Female 142,993

Age structure

Unit: %

Youth 10.0%Working age 70.0%Seniors 20.0%10.0%70.0%20.0%

Youth 10.0%Working age 70.0%Seniors 20.0%

50s is the largest group, at 54,246 people.

Population change

Change over time

4-year trend

Unit: people

294,357 in 2022288,243 in 2023284,126 in 2024280,946 in 2025276,121 in 202620222023202420252026

294,357 in 2022276,121 in 2026

Down 6.2% over the past 4 years.

Population ranking

Ilsan-dong has the largest population of the 8 neighborhoods.

Population by region

8
  • YoungestDeogi-dong44 yrs
  • OldestGusan-dong56.4 yrs

There is a 12.4-year gap in average age between the youngest and the oldest area.

RegionPopulationShareAverage age
Ilsan-dong75,66727.4%45.5 yrs
Daehwa-dong51,88518.8%44.9 yrs
Juyeop-dong51,80418.8%46.7 yrs
Tanhyeon-dong47,13617.1%44.4 yrs
Deogi-dong30,43311%44 yrs
Gajwa-dong16,3725.9%44.9 yrs
Gusan-dong1,6480.6%56.4 yrs
Beopgot-dong1,1760.4%55.9 yrs

The top three areas hold 65.0% of the population of Ilsanseo-gu, Goyang-si.

Other regions

Other districts in Gyeonggi

16

Frequently asked questions❓

Ilsanseo-gu, Goyang-si has 276,121 residents as of June 2026., 4,825 fewer than a year earlier.
Ilsan-dong, home to 75,667 residents — 27.4% of Ilsanseo-gu, Goyang-si.
It is 45.3 as of June 2026., close to the national average of 45.6. Among its neighborhoods, Deogi-dong is youngest at 44 and Gusan-dong oldest at 56.4.
It fell 6.2% over 4 years, from 294,357 in 2022 to 276,121 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 🌐