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Population of Gwangjin-gu, Seoul

Resident registration data, June 2026 (MOIS)

Total population330,905people
Average age44.3yrs

Population structure

Population by age

10-year bands · by sex

Population by age and sex

Unit: people

Under 1010s20s👑 30s40s50s60s70s80s90s100+6,77911,47424,59728,37222,39624,51822,07212,3865,015530126,48611,33129,60628,70223,39026,08823,84514,9596,9641,35131

Male 158,151Female 172,754

Age structure

Unit: %

Youth 7.5%Working age 73.1%Seniors 19.4%73.1%19.4%

Youth 7.5%Working age 73.1%Seniors 19.4%

30s is the largest group, at 57,074 people.

Population change

Change over time

4-year trend

Unit: people

339,893 in 2022336,169 in 2023334,159 in 2024333,096 in 2025330,905 in 202620222023202420252026

339,893 in 2022330,905 in 2026

Down 2.6% over the past 4 years.

Population ranking

Jayang-dong has the largest population of the 7 neighborhoods.

Population by region

7
  • YoungestHwayang-dong37.1 yrs
  • OldestJunggok-dong47 yrs

There is a 9.9-year gap in average age between the youngest and the oldest area.

RegionPopulationShareAverage age
Jayang-dong94,15428.5%45 yrs
Junggok-dong76,44423.1%47 yrs
Guui-dong75,38422.8%44.6 yrs
Gwangjang-dong32,8369.9%41.2 yrs
Hwayang-dong22,9987%37.1 yrs
Gunja-dong18,4755.6%44 yrs
Neung-dong10,6143.2%43.4 yrs

The top three areas hold 74.3% of the population of Gwangjin-gu, Seoul.

Other regions

Other districts in Seoul

16

Frequently asked questions❓

Gwangjin-gu, Seoul has 330,905 residents as of June 2026., 2,191 fewer than a year earlier.
Jayang-dong, home to 94,154 residents — 28.5% of Gwangjin-gu, Seoul.
It is 44.3 as of June 2026., 1.3 years below the national average of 45.6. Among its neighborhoods, Hwayang-dong is youngest at 37.1 and Junggok-dong oldest at 47.
It fell 2.6% over 4 years, from 339,893 in 2022 to 330,905 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 🌐