Total population50,025people
Households28,363households
Average age55.7yrs
Sex ratioMale25,170peopleFemale24,855people50.3%49.7%
Population change
Change over time
4-year trendUnit: people
52,836 in 202250,025 in 2026
Down 5.3% over the past 4 years.
Migration
As of August 2026Monthly Overview
Moved in339people
Moved out282people
Net migration57people
Net migration by month
Unit: people
Net inflowNet outflow
Top origins
Unit: people
| Region | Moved in |
|---|---|
| Jeonju-si | 27 |
| Gwangsan-gu, Gwangju | 22 |
| Buk-gu, Gwangju | 15 |
| Jeongeup-si | 12 |
| Nam-gu, Gwangju | 10 |
Top destinations
Unit: people
| Region | Moved out |
|---|---|
| Jeonju-si | 20 |
| Buk-gu, Gwangju | 12 |
| Nam-gu, Gwangju | 10 |
| Gwangsan-gu, Gwangju | 9 |
| Jeongeup-si | 9 |
Inflows exceeded outflows in 8 of the past 12 months, for a net gain of 179.
Population structure
Population by age
As of September 2026Population by age and sex
Unit: people
Male 25,170Female 24,855
Age structure
Unit: %
Youth 7.2%Working age 51.9%Seniors 40.9%
60s is the largest group, at 10,584 people.
Population ranking
Population by region
As of September 2026- YoungestGochang-eup47.4 yrs
- OldestSeongsong-myeon63.6 yrs
| Region | Share | ||
|---|---|---|---|
| Gochang-eup | 20,526 | 41% | 47.4 yrs |
| Heungdeok-myeon | 2,819 | 5.6% | 59.6 yrs |
| Daesan-myeon | 2,787 | 5.6% | 62.8 yrs |
| Mujang-myeon | 2,592 | 5.2% | 58.6 yrs |
| Buan-myeon | 2,459 | 4.9% | 62 yrs |
| Haeri-myeon | 2,402 | 4.8% | 63.4 yrs |
| Asan-myeon | 2,386 | 4.8% | 61.7 yrs |
| Simwon-myeon | 2,217 | 4.4% | 59.8 yrs |
| Gosu-myeon | 2,207 | 4.4% | 60.5 yrs |
| Gongeum-myeon | 2,162 | 4.3% | 62.7 yrs |
| Sangha-myeon | 2,145 | 4.3% | 61.1 yrs |
| Sillim-myeon | 1,982 | 4% | 61.5 yrs |
| Seongnae-myeon | 1,732 | 3.5% | 62.6 yrs |
| Seongsong-myeon | 1,609 | 3.2% | 63.6 yrs |
The top three areas hold 52.2% of the population of Gochang-gun, Jeonbuk-do.
Frequently asked questionsβ
Gochang-gun, Jeonbuk-do has 50,025 residents as of September 2026., 538 fewer than a year earlier.
Gochang-eup, home to 20,526 residents (41.0% of Gochang-gun, Jeonbuk-do).
It is 55.7 as of September 2026., 10 years above the national average of 45.7. Among its towns and townships, Gochang-eup is youngest at 47.4 and Seongsong-myeon oldest at 63.6.
It fell 5.3% over 4 years, from 52,836 in 2022 to 50,025 in September 2026.
As of August 2026, the most people moved in from Jeonju-si (27) and the most moved out to Jeonju-si (20). Inflows exceeded outflows in 8 of the past 12 months, for a net gain of 179.
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