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Population of Bundang-gu, Seongnam-si

Resident registration data, June 2026 (MOIS)

Total population467,641people
Average age42.9yrs

Population structure

Population by age

10-year bands · by sex

Population by age and sex

Unit: people

Under 1010s20s30s40s👑 50s60s70s80s90s100+15,75525,95025,97033,13336,60337,94828,52114,8796,5119821815,08624,92626,16034,00840,89840,68930,54217,2979,2872,41561

Male 226,271Female 241,370

Age structure

Unit: %

Youth 12.0%Working age 70.6%Seniors 17.3%12.0%70.6%17.3%

Youth 12.0%Working age 70.6%Seniors 17.3%

50s is the largest group, at 78,637 people.

Population change

Change over time

4-year trend

Unit: people

484,021 in 2022476,888 in 2023470,942 in 2024470,044 in 2025467,641 in 202620222023202420252026

484,021 in 2022467,641 in 2026

Down 3.4% over the past 4 years.

Population ranking

Jeongja-dong has the largest population of the 18 neighborhoods.

Population by region

18
  • YoungestDaejang-dong37 yrs
  • OldestSeogun-dong61.3 yrs

There is a 24.3-year gap in average age between the youngest and the oldest area.

RegionPopulationShareAverage age
Jeongja-dong73,15915.6%43 yrs
Yatap-dong58,56012.5%45.3 yrs
Seohyeon-dong46,4739.9%42.6 yrs
Gumi-dong43,2599.3%45.4 yrs
Sunae-dong41,3628.8%40.9 yrs
Imae-dong37,2538%43 yrs
Baekhyeon-dong30,0456.4%42.8 yrs
Geumgok-dong24,5565.3%45.4 yrs
Bundang-dong24,3685.2%43.8 yrs
Sampyeong-dong23,4865%41.1 yrs
Pangyo-dong22,3934.8%39.2 yrs
Unjung-dong20,6714.4%41.6 yrs
Daejang-dong17,8283.8%37 yrs
Gungnae-dong2,0900.4%49.7 yrs
Yul-dong1,1960.3%38.4 yrs
Dongwon-dong6400.1%51.4 yrs
Seogun-dong2310%61.3 yrs
Hasanun-dong710%41.8 yrs

The top three areas hold 38.1% of the population of Bundang-gu, Seongnam-si.

Other regions

Other districts in Gyeonggi

16

Frequently asked questions❓

Bundang-gu, Seongnam-si has 467,641 residents as of June 2026., 2,403 fewer than a year earlier.
Jeongja-dong, home to 73,159 residents — 15.6% of Bundang-gu, Seongnam-si.
It is 42.9 as of June 2026., 2.7 years below the national average of 45.6. Among its neighborhoods, Daejang-dong is youngest at 37 and Seogun-dong oldest at 61.3.
It fell 3.4% over 4 years, from 484,021 in 2022 to 467,641 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 🌐