Gunsan Modern History Street, Jangmi-dong, Gunsan-siGyeongam-dong Railroad Village, Gyeongam-dong, Gunsan-siSaemangeum Seawall Starting Point, Bieungdo-dong, Gunsan-si
Total population255,517people
Households127,220households
Average age47.5yrs
Sex ratioMale129,690peopleFemale125,827people50.8%49.2%

Population change

Change over time

4-year trend

Unit: people

263,500 in 2022260,675 in 2023258,437 in 2024256,575 in 2025255,517 in 202620222023202420252026

263,500 in 2022255,517 in 2026

Down 3% over the past 4 years.

Migration

As of August 2026

Monthly Overview

Moved in2,320people
Moved out2,250people
Net migration70people

Net migration by month

Unit: people

4911245βˆ’113βˆ’119βˆ’148βˆ’212107126164170SepOctNovDecJanFebMarAprMayJunJulAug49 in Sep 2025112 in Oct 202545 in Nov 2025βˆ’113 in Dec 2025βˆ’119 in Jan 2026βˆ’148 in Feb 2026βˆ’212 in Mar 2026107 in Apr 2026126 in May 202616 in Jun 202641 in Jul 202670 in Aug 2026

Net inflowNet outflow

Top origins

Unit: people

Top destinations

Unit: people

Inflows led in 8 of the past 12 months, but a few large outflow months left a net loss of 26.

Want more detail on migration in Gunsan-si?See more Gunsan-si statistics on GData

Population structure

Population by age

As of September 2026

Population by age and sex

Unit: people

Under 1010s20s30s40sπŸ‘‘ 50s60s70s80s90s100+6,69312,84813,12713,95019,39023,94121,26113,1654,74856346,59412,10710,27111,98317,82021,57920,92414,8727,9021,72450

Male 129,690Female 125,827

Age structure

Unit: %

Youth 10.1%Working age 64.8%Seniors 25.1%10.1%64.8%25.1%

Youth 10.1%Working age 64.8%Seniors 25.1%

50s is the largest group, at 45,520 people.

Population ranking

Population by region

As of September 2026
  • YoungestJigok-dong37.8 yrs
  • OldestSongchang-dong64.1 yrs
RegionShare
Naun-dong47,11118.4%48.6 yrs
Jochon-dong25,46010%40 yrs
Susong-dong22,7538.9%42.1 yrs
Mijang-dong16,0186.3%42.1 yrs
Jigok-dong14,7355.8%37.8 yrs
Miryong-dong14,3355.6%43 yrs
Soryong-dong13,0495.1%48.5 yrs
Sanbuk-dong9,8263.8%49.9 yrs
Naeheung-dong8,9913.5%38.8 yrs
Guam-dong7,4342.9%44.9 yrs

The top three areas hold 37.3% of the population of Gunsan-si, Jeonbuk-do.

Frequently asked questions❓

Gunsan-si, Jeonbuk-do has 255,517 residents as of September 2026., 1,058 fewer than a year earlier.
Naun-dong, home to 47,111 residents (18.4% of Gunsan-si, Jeonbuk-do).
It is 47.5 as of September 2026., 1.8 years above the national average of 45.7. Among its neighborhoods, Jigok-dong is youngest at 37.8 and Songchang-dong oldest at 64.1.
It fell 3% over 4 years, from 263,500 in 2022 to 255,517 in September 2026.
As of August 2026, the most people moved in from Jeonju-si (143) and the most moved out to Jeonju-si (102). Inflows led in 8 of the past 12 months, but a few large outflow months left a net loss of 26.
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 🌐