Daejeo Eco Park Canola Field, Daejeo1-dong, Gangseo-guMyeongji International City Apartments, Myeongji-dong, Gangseo-gu
Total population154,782people
Households67,136households
Average age40.2yrs
Sex ratioMale80,008peopleFemale74,774people51.7%48.3%

Population change

Change over time

4-year trend

Unit: people

143,925 in 2022142,890 in 2023142,999 in 2024147,813 in 2025154,782 in 202620222023202420252026

143,925 in 2022154,782 in 2026

Up 7.5% over the past 4 years.

Migration

As of August 2026

Monthly Overview

Moved in2,093people
Moved out1,485people
Net migration608people

Net migration by month

Unit: people

511497662650498979487376276324481608SepOctNovDecJanFebMarAprMayJunJulAug511 in Sep 2025497 in Oct 2025662 in Nov 2025650 in Dec 2025498 in Jan 2026979 in Feb 2026487 in Mar 2026376 in Apr 2026276 in May 2026324 in Jun 2026481 in Jul 2026608 in Aug 2026

Net inflowNet outflow

Top origins

Unit: people

Top destinations

Unit: people

Inflows exceeded outflows in every one of the past 12 months, for a net gain of 6,349.

Want more detail on migration in Gangseo-gu?See more Gangseo-gu statistics on GData

Population structure

Population by age

As of September 2026

Population by age and sex

Unit: people

Under 1010s20s30sπŸ‘‘ 40s50s60s70s80s90s100+8,5019,6865,82112,45817,28610,6048,8685,2761,39411228,1629,2194,86411,90715,0378,8008,9785,2382,1094528

Male 80,008Female 74,774

Age structure

Unit: %

Youth 16.9%Working age 67.9%Seniors 15.2%16.9%67.9%15.2%

Youth 16.9%Working age 67.9%Seniors 15.2%

40s is the largest group, at 32,323 people.

Population ranking

Population by region

As of September 2026
  • YoungestGangdong-dong35.4 yrs
  • OldestJukdong-dong63.6 yrs
RegionShare
Myeongji-dong83,72254.1%37.1 yrs
Gangdong-dong22,06614.3%35.4 yrs
Sinho-dong14,9279.6%43.3 yrs
Jisa-dong9,7066.3%39.5 yrs
Daejeo2-dong5,8213.8%50.6 yrs
Daejeo1-dong5,2753.4%58.6 yrs
Hwajeon-dong3,6032.3%44.2 yrs
Songjeong-dong1,3110.8%48.1 yrs
Noksan-dong1,0960.7%57.8 yrs
Seongbuk-dong1,0390.7%53.6 yrs

The top three areas hold 78.0% of the population of Gangseo-gu, Busan.

Want to explore Gangseo-gu's demographics in more detail?See more Gangseo-gu statistics on GData

Frequently asked questions❓

Gangseo-gu, Busan has 154,782 residents as of September 2026., 6,969 more than a year earlier.
Myeongji-dong, home to 83,722 residents (54.1% of Gangseo-gu, Busan).
It is 40.2 as of September 2026., 5.5 years below the national average of 45.7. Among its neighborhoods, Gangdong-dong is youngest at 35.4 and Jukdong-dong oldest at 63.6.
It rose 7.5% over 4 years, from 143,925 in 2022 to 154,782 in September 2026.
As of August 2026, the most people moved in from Saha-gu (209) and the most moved out to Gimhae-si, Gyeongsangnam-do (70). Inflows exceeded outflows in every one of the past 12 months, for a net gain of 6,349.
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 🌐