Total population46,712people
Households26,430households
Average age55.7yrs
Sex ratioMale23,771peopleFemale22,941people50.9%49.1%
Population change
Change over time
4-year trendUnit: people
49,994 in 202246,712 in 2026
Down 6.6% over the past 4 years.
Migration
As of August 2026Monthly Overview
Moved in268people
Moved out270people
Net migrationβ2people
Net migration by month
Unit: people
Net inflowNet outflow
Top origins
Unit: people
| Region | Moved in |
|---|---|
| Changwon-si | 33 |
| Jinju-si | 16 |
| Sacheon-si | 14 |
| Tongyeong-si | 10 |
| Busanjin-gu, Busan | 9 |
Top destinations
Unit: people
| Region | Moved out |
|---|---|
| Changwon-si | 27 |
| Tongyeong-si | 27 |
| Jinju-si | 16 |
| Sacheon-si | 15 |
| Gimhae-si | 13 |
Net migration varied across the past 12 months, totaling +96.
Population structure
Population by age
As of September 2026Population by age and sex
Unit: people
Male 23,771Female 22,941
Age structure
Unit: %
Youth 6.4%Working age 53.8%Seniors 39.8%
60s is the largest group, at 10,754 people.
Population ranking
Population by region
As of September 2026- YoungestGoseong-eup49.6 yrs
- OldestYeonghyeon-myeon66.2 yrs
| Region | Share | ||
|---|---|---|---|
| Goseong-eup | 22,358 | 47.9% | 49.6 yrs |
| Georyu-myeon | 3,926 | 8.4% | 58.5 yrs |
| Hoehwa-myeon | 3,190 | 6.8% | 57.6 yrs |
| Donghae-myeon | 2,889 | 6.2% | 62.1 yrs |
| Hai-myeon | 2,406 | 5.2% | 58.6 yrs |
| Samsan-myeon | 1,679 | 3.6% | 61.8 yrs |
| Hail-myeon | 1,678 | 3.6% | 62.7 yrs |
| Maam-myeon | 1,592 | 3.4% | 64.4 yrs |
| Daega-myeon | 1,537 | 3.3% | 64.3 yrs |
| Sangni-myeon | 1,434 | 3.1% | 64.3 yrs |
| Yeongo-myeon | 1,265 | 2.7% | 62.5 yrs |
| Gaecheon-myeon | 1,017 | 2.2% | 63.6 yrs |
| Guman-myeon | 924 | 2% | 63.9 yrs |
| Yeonghyeon-myeon | 817 | 1.7% | 66.2 yrs |
The top three areas hold 63.1% of the population of Goseong-gun, Gyeongsangnam-do.
Frequently asked questionsβ
Goseong-gun, Gyeongsangnam-do has 46,712 residents as of September 2026., 586 fewer than a year earlier.
Goseong-eup, home to 22,358 residents (47.9% of Goseong-gun, Gyeongsangnam-do).
It is 55.7 as of September 2026., 10 years above the national average of 45.7. Among its towns and townships, Goseong-eup is youngest at 49.6 and Yeonghyeon-myeon oldest at 66.2.
It fell 6.6% over 4 years, from 49,994 in 2022 to 46,712 in September 2026.
As of August 2026, the most people moved in from Changwon-si (33) and the most moved out to Changwon-si (27). Net migration varied across the past 12 months, totaling +96.
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 π
- Resident registration data, Ministry of the Interior and SafetyKOGL Type 1 Β· as of September 2026 Β· updated monthly
- Internal Migration Statistics, Statistics Korea (KOSIS)KOGL Type 1 Β· as of August 2026 Β· updated monthly