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Population of Changwon-si, Gyeongsangnam

Resident registration data, June 2026 (MOIS)

Total population986,273people
Average age45.8yrs

Population structure

Population by age

10-year bands · by sex

Population by age and sex

Unit: people

Under 1010s20s30s40s👑 50s60s70s80s90s100+28,42048,96353,94964,43177,04987,19982,49742,82512,3991,136927,11845,58241,02954,29271,89188,12585,49948,66220,8804,23976

Male 498,877Female 487,396

Age structure

Unit: %

Youth 10.4%Working age 67.9%Seniors 21.7%10.4%67.9%21.7%

Youth 10.4%Working age 67.9%Seniors 21.7%

50s is the largest group, at 175,324 people.

Population change

Change over time

4-year trend

Unit: people

1,026,749 in 20221,014,544 in 20231,003,731 in 2024994,887 in 2025986,273 in 202620222023202420252026

1,026,749 in 2022986,273 in 2026

Down 3.9% over the past 4 years.

Population ranking

Seongsan-gu has the largest population of the 5 districts.

Population by region

5

There is a 5.5-year gap in average age between the youngest and the oldest area.

RegionPopulationShareAverage age
Seongsan-gu245,29224.9%43.1 yrs
Uichang-gu209,37721.2%45.6 yrs
Jinhae-gu182,94218.5%44.9 yrs
Masanhappo-gu174,48717.7%48.6 yrs
Masanhoewon-gu174,17517.7%48.1 yrs

The top three areas hold 64.6% of the population of Changwon-si, Gyeongsangnam.

Other regions

Other districts in Gyeongsangnam

16

Frequently asked questions❓

Changwon-si, Gyeongsangnam has 986,273 residents as of June 2026., 8,614 fewer than a year earlier.
Seongsan-gu, home to 245,292 residents — 24.9% of Changwon-si, Gyeongsangnam.
It is 45.8 as of June 2026., close to the national average of 45.6. Among its districts, Seongsan-gu is youngest at 43.1 and Masanhappo-gu oldest at 48.6.
It fell 3.9% over 4 years, from 1,026,749 in 2022 to 986,273 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 🌐