Population of Namdong-gu, Incheon

Resident registration data, June 2026 (MOIS)

Total population479,149people
Average age45.9yrs

Population structure

Population by age

10-year bands · by sex

Population by age and sex

Unit: people

Under 1010s20s30s40s👑 50s60s70s80s90s100+11,59622,65727,20332,48536,60741,78538,66919,4326,3716801311,03821,27625,81328,29535,25942,23841,33822,99410,9942,33272

Male 237,498Female 241,651

Age structure

Unit: %

Youth 9.3%Working age 69.2%Seniors 21.5%9.3%69.2%21.5%

Youth 9.3%Working age 69.2%Seniors 21.5%

50s is the largest group, at 84,023 people.

Population change

Change over time

4-year trend

Unit: people

512,645 in 2022499,891 in 2023488,436 in 2024482,547 in 2025479,149 in 202620222023202420252026

512,645 in 2022479,149 in 2026

Down 6.5% over the past 4 years.

Population ranking

Guwol-dong has the largest population of the 11 neighborhoods.

Population by region

11
  • YoungestSeochang-dong42.5 yrs
  • OldestUnyeon-dong58.7 yrs

There is a 16.2-year gap in average age between the youngest and the oldest area.

RegionPopulationShareAverage age
Guwol-dong107,13222.4%44.3 yrs
Mansu-dong106,11322.1%48.9 yrs
Nonhyeon-dong99,99020.9%43.7 yrs
Ganseok-dong91,18119%47.3 yrs
Seochang-dong50,38910.5%42.5 yrs
Namchon-dong9,9282.1%49.5 yrs
Dorim-dong8,1701.7%48.9 yrs
Jangsu-dong4,7581%52.7 yrs
Gojan-dong7140.1%57.1 yrs
Susan-dong4960.1%57.7 yrs
Unyeon-dong2780.1%58.7 yrs

The top three areas hold 65.4% of the population of Namdong-gu, Incheon.

Other regions

Other districts in Incheon

9

Frequently asked questions❓

Namdong-gu, Incheon has 479,149 residents as of June 2026., 3,398 fewer than a year earlier.
Guwol-dong, home to 107,132 residents — 22.4% of Namdong-gu, Incheon.
It is 45.9 as of June 2026., close to the national average of 45.6. Among its neighborhoods, Seochang-dong is youngest at 42.5 and Unyeon-dong oldest at 58.7.
It fell 6.5% over 4 years, from 512,645 in 2022 to 479,149 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 🌐