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Population of Dongdaemun-gu, Seoul

Resident registration data, June 2026 (MOIS)

Total population352,848people
Average age44.7yrs

Population structure

Population by age

10-year bands · by sex

Population by age and sex

Unit: people

Under 1010s20s👑 30s40s50s60s70s80s90s100+9,15711,77125,88028,46324,72926,47223,97914,5206,086687118,78711,53829,66327,77623,71126,24524,95517,5649,2641,54941

Male 171,755Female 181,093

Age structure

Unit: %

Youth 8.4%Working age 70.6%Seniors 21.0%70.6%21.0%

Youth 8.4%Working age 70.6%Seniors 21.0%

30s is the largest group, at 56,239 people.

Population change

Change over time

4-year trend

Unit: people

337,330 in 2022338,115 in 2023341,345 in 2024342,354 in 2025352,848 in 202620222023202420252026

337,330 in 2022352,848 in 2026

Up 4.6% over the past 4 years.

Population ranking

Jangan-dong has the largest population of the 10 neighborhoods.

Population by region

10
  • YoungestHoegi-dong40 yrs
  • OldestCheongnyangni-dong51.6 yrs

There is a 11.6-year gap in average age between the youngest and the oldest area.

RegionPopulationShareAverage age
Jangan-dong70,00519.8%45 yrs
Dapsimni-dong54,70015.5%45 yrs
Jeonnong-dong49,64714.1%46 yrs
Imun-dong48,43613.7%42.3 yrs
Hwigyeong-dong40,31911.4%42.3 yrs
Yongdu-dong35,0159.9%44.6 yrs
Jegi-dong22,1766.3%47.5 yrs
Cheongnyangni-dong18,1735.2%51.6 yrs
Hoegi-dong10,3112.9%40 yrs
Sinseol-dong4,0661.2%42.2 yrs

The top three areas hold 49.4% of the population of Dongdaemun-gu, Seoul.

Other regions

Other districts in Seoul

16

Frequently asked questions❓

Dongdaemun-gu, Seoul has 352,848 residents as of June 2026., 10,494 more than a year earlier.
Jangan-dong, home to 70,005 residents — 19.8% of Dongdaemun-gu, Seoul.
It is 44.7 as of June 2026., 0.9 years below the national average of 45.6. Among its neighborhoods, Hoegi-dong is youngest at 40 and Cheongnyangni-dong oldest at 51.6.
It rose 4.6% over 4 years, from 337,330 in 2022 to 352,848 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 🌐