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Moran Market Traditional Street, Seongnam-dong, Jungwon-guHwangsong Park, Geumgwang-dong, Jungwon-guSeongnam High-Tech Valley & Sangdaewon Market, Sangdaewon-dong, Jungwon-guSeongnam City Hall & City Hall Park, Yeosu-dong, Jungwon-gu

Population of Jungwon-gu, Seongnam-si

As of September 2026

Total population198,233people
Households98,022households
Average age46.5yrs
Sex ratioMale99,758peopleFemale98,475people50.3%49.7%

Population change

Change over time

4-year trend

Unit: people

206,386 in 2022213,015 in 2023208,629 in 2024204,830 in 2025198,233 in 202620222023202420252026

206,386 in 2022198,233 in 2026

Down 4% over the past 4 years.

Population structure

Population by age

As of September 2026

Population by age and sex

Unit: people

Under 1010s20s30s40s50sπŸ‘‘ 60s70s80s90s100+4,8547,01911,42616,59114,75016,51616,4738,8612,98327774,7406,56210,88813,99113,21515,99817,16810,3464,68285430

Male 99,758Female 98,475

Age structure

Unit: %

Youth 8.3%Working age 69.1%Seniors 22.6%69.1%22.6%

Youth 8.3%Working age 69.1%Seniors 22.6%

60s is the largest group, at 33,641 people.

Population ranking

Population by region

As of September 2026
  • YoungestYeosu-dong40 yrs
  • OldestGalhyeon-dong52.9 yrs
RegionShare
Geumgwang-dong41,80821.1%44.5 yrs
Sangdaewon-dong36,11318.2%49 yrs
Seongnam-dong31,80016%47.1 yrs
Eunhaeng-dong26,99013.6%48.3 yrs
Hadaewon-dong19,4959.8%47.1 yrs
Jungang-dong16,5108.3%44.8 yrs
Dochon-dong14,8217.5%46.6 yrs
Yeosu-dong10,1515.1%40 yrs
Galhyeon-dong5450.3%52.9 yrs

The top three areas hold 55.3% of the population of Jungwon-gu, Seongnam-si.

Frequently asked questions❓

Jungwon-gu, Seongnam-si has 198,233 residents as of September 2026., 6,597 fewer than a year earlier.
Geumgwang-dong, home to 41,808 residents (21.1% of Jungwon-gu, Seongnam-si).
It is 46.5 as of September 2026., 0.8 years above the national average of 45.7. Among its neighborhoods, Yeosu-dong is youngest at 40 and Galhyeon-dong oldest at 52.9.
It fell 4% over 4 years, from 206,386 in 2022 to 198,233 in September 2026.
This is resident registration data from Korea's Ministry of the Interior and Safety. Figures are as of the end of September 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 🌐