Total population42,384people
Households22,566households
Average age55.2yrs
Sex ratioMale22,795peopleFemale19,589people53.8%46.2%
Population change
Change over time
4-year trendUnit: people
38,124 in 202242,384 in 2026
Up 11.2% over the past 4 years.
Migration
As of August 2026Monthly Overview
Moved in285people
Moved out251people
Net migration34people
Net migration by month
Unit: people
Net inflowNet outflow
Top origins
Unit: people
| Region | Moved in |
|---|---|
| Mokpo-si | 98 |
| Muan-gun | 18 |
| Buk-gu, Gwangju | 12 |
| Nam-gu, Gwangju | 7 |
| Dong-gu, Gwangju | 6 |
Top destinations
Unit: people
| Region | Moved out |
|---|---|
| Mokpo-si | 71 |
| Muan-gun | 22 |
| Gwangsan-gu, Gwangju | 17 |
| Nam-gu, Gwangju | 8 |
| Buk-gu, Gwangju | 5 |
Inflows exceeded outflows in every one of the past 12 months, for a net gain of 4,069.
Population structure
Population by age
As of September 2026Population by age and sex
Unit: people
Male 22,795Female 19,589
Age structure
Unit: %
Youth 6.5%Working age 54.7%Seniors 38.8%
60s is the largest group, at 9,748 people.
Population ranking
Population by region
As of September 2026- YoungestSinui-myeon52.8 yrs
- OldestPalgeum-myeon59.6 yrs
| Region | Share | ||
|---|---|---|---|
| Aphae-eup | 7,161 | 16.9% | 54 yrs |
| Jido-eup | 5,075 | 12% | 55.9 yrs |
| Bigeum-myeon | 3,858 | 9.1% | 55.9 yrs |
| Anjwa-myeon | 3,841 | 9.1% | 54.2 yrs |
| Heuksan-myeon | 3,492 | 8.2% | 53.8 yrs |
| Imja-myeon | 3,470 | 8.2% | 53.3 yrs |
| Jaeun-myeon | 2,731 | 6.4% | 55.5 yrs |
| Docho-myeon | 2,682 | 6.3% | 55.2 yrs |
| Amtae-myeon | 2,193 | 5.2% | 57.4 yrs |
| Jeungdo-myeon | 1,901 | 4.5% | 58.1 yrs |
| Haui-myeon | 1,693 | 4% | 57.1 yrs |
| Jangsan-myeon | 1,666 | 3.9% | 57.4 yrs |
| Sinui-myeon | 1,593 | 3.8% | 52.8 yrs |
| Palgeum-myeon | 1,028 | 2.4% | 59.6 yrs |
The top three areas hold 38.0% of the population of Sinan-gun, Jeollanam-do.
Frequently asked questionsβ
Sinan-gun, Jeollanam-do has 42,384 residents as of September 2026., 3,454 more than a year earlier.
Aphae-eup, home to 7,161 residents (16.9% of Sinan-gun, Jeollanam-do).
It is 55.2 as of September 2026., 9.5 years above the national average of 45.7. Among its towns and townships, Sinui-myeon is youngest at 52.8 and Palgeum-myeon oldest at 59.6.
It rose 11.2% over 4 years, from 38,124 in 2022 to 42,384 in September 2026.
As of August 2026, the most people moved in from Mokpo-si (98) and the most moved out to Mokpo-si (71). Inflows exceeded outflows in every one of the past 12 months, for a net gain of 4,069.
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