Population of Jeju
Resident registration data, June 2026 (MOIS)
Total population662,792people
Average age45.1yrs
Population structure
Population by age
10-year bands · by sexPopulation by age and sex
Unit: people
Male 331,124Female 331,668
Age structure
Unit: %
Youth 11.7%Working age 67.2%Seniors 21.1%
50s is the largest group, at 118,326 people.
Population change
Change over time
4-year trendUnit: people
678,012 in 2022662,792 in 2026
Down 2.2% over the past 4 years.
Explore regions
Region map
Population ranking
Jeju-si has the largest population of the 2 districts.
Population by region
2| Region | Population | Share | Average age |
|---|---|---|---|
| Jeju-si | 484,123 | 73% | 44.2 yrs |
| Seogwipo-si | 178,669 | 27% | 47.7 yrs |
The top three areas hold 100.0% of the population of Jeju.
Other regions
Other regions
16Frequently asked questions❓
Jeju has 662,792 residents as of June 2026., 3,833 fewer than a year earlier.
Jeju-si, home to 484,123 residents — 73.0% of Jeju.
It is 45.1 as of June 2026., 0.5 years below the national average of 45.6. Among its districts, Jeju-si is youngest at 44.2 and Seogwipo-si oldest at 47.7.
It fell 2.2% over 4 years, from 678,012 in 2022 to 662,792 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 🌐
- Resident registration data, Ministry of the Interior and SafetyKOGL Type 1 · as of June 2026 · updated monthly