Population of Daejeon
Resident registration data, June 2026 (MOIS)
Total population1,442,034people
Average age44.2yrs
Population structure
Population by age
10-year bands · by sexPopulation by age and sex
Unit: people
Male 718,127Female 723,907
Age structure
Unit: %
Youth 10.6%Working age 69.6%Seniors 19.8%
50s is the largest group, at 241,715 people.
Population change
Change over time
4-year trendUnit: people
1,448,401 in 20221,442,034 in 2026
Barely changed over the past 4 years.
Explore regions
Region map
Population ranking
Seo-gu has the largest population of the 5 districts.
Population by region
5There is a 6.8-year gap in average age between the youngest and the oldest area.
| Region | Population | Share | Average age |
|---|---|---|---|
| Seo-gu | 464,359 | 32.2% | 43.2 yrs |
| Yuseong-gu | 371,104 | 25.7% | 40.6 yrs |
| Jung-gu | 224,273 | 15.6% | 47.2 yrs |
| Dong-gu | 218,251 | 15.1% | 46.7 yrs |
| Daedeok-gu | 164,047 | 11.4% | 47.4 yrs |
The top three areas hold 73.5% of the population of Daejeon.
Other regions
Other regions
16Frequently asked questions❓
Daejeon has 1,442,034 residents as of June 2026., 2,270 more than a year earlier.
Seo-gu, home to 464,359 residents — 32.2% of Daejeon.
It is 44.2 as of June 2026., 1.4 years below the national average of 45.6. Among its districts, Yuseong-gu is youngest at 40.6 and Daedeok-gu oldest at 47.4.
It fell 0.4% over 4 years, from 1,448,401 in 2022 to 1,442,034 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