Population of Ulsan
Resident registration data, June 2026 (MOIS)
Total population1,087,089people
Average age44.8yrs
Population structure
Population by age
10-year bands · by sexPopulation by age and sex
Unit: people
Male 560,549Female 526,540
Age structure
Unit: %
Youth 11.0%Working age 69.1%Seniors 19.9%
50s is the largest group, at 195,449 people.
Population change
Change over time
4-year trendUnit: people
1,115,609 in 20221,087,089 in 2026
Down 2.6% over the past 4 years.
Explore regions
Region map
Population ranking
Nam-gu has the largest population of the 5 districts.
Population by region
5There is a 4.9-year gap in average age between the youngest and the oldest area.
The top three areas hold 67.7% of the population of Ulsan.
Other regions
Other regions
16Frequently asked questions❓
Ulsan has 1,087,089 residents as of June 2026., 6,576 fewer than a year earlier.
Nam-gu, home to 304,337 residents — 28.0% of Ulsan.
It is 44.8 as of June 2026., 0.8 years below the national average of 45.6. Among its districts, Buk-gu is youngest at 41.8 and Ulju-gun oldest at 46.7.
It fell 2.6% over 4 years, from 1,115,609 in 2022 to 1,087,089 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