Total population304,655people
Households144,437households
Average age44.6yrs
Sex ratioMale156,022peopleFemale148,633people51.2%48.8%
Population change
Change over time
4-year trendUnit: people
311,396 in 2022304,655 in 2026
Down 2.2% over the past 4 years.
Migration
As of August 2026Monthly Overview
Moved in3,389people
Moved out3,194people
Net migration195people
Net migration by month
Unit: people
Net inflowNet outflow
Top origins
Unit: people
| Region | Moved in |
|---|---|
| Jung-gu | 382 |
| Ulju-gun | 291 |
| Buk-gu | 230 |
| Dong-gu | 181 |
| Yangsan-si, Gyeongsangnam-do | 52 |
Top destinations
Unit: people
| Region | Moved out |
|---|---|
| Ulju-gun | 372 |
| Jung-gu | 239 |
| Buk-gu | 155 |
| Dong-gu | 70 |
| Yangsan-si, Gyeongsangnam-do | 42 |
Net migration varied across the past 12 months, totaling +251.
Population structure
Population by age
As of September 2026Population by age and sex
Unit: people
Male 156,022Female 148,633
Age structure
Unit: %
Youth 10.4%Working age 70.3%Seniors 19.3%
50s is the largest group, at 54,710 people.
Population ranking
Population by region
As of September 2026- YoungestDuwang-dong39.8 yrs
- OldestSeongam-dong74.3 yrs
| Region | Share | ||
|---|---|---|---|
| Sinjeong-dong | 89,211 | 29.3% | 45 yrs |
| Yaeum-dong | 54,321 | 17.8% | 42.7 yrs |
| Mugeo-dong | 49,962 | 16.4% | 45.5 yrs |
| Dal-dong | 39,303 | 12.9% | 45.8 yrs |
| Samsan-dong | 33,379 | 11% | 43.1 yrs |
| Ok-dong | 21,449 | 7% | 44.2 yrs |
| Seonam-dong | 11,655 | 3.8% | 47.3 yrs |
| Duwang-dong | 3,286 | 1.1% | 39.8 yrs |
| Sanggae-dong | 1,047 | 0.3% | 51.2 yrs |
| Jangsaengpo-dong | 662 | 0.2% | 59.4 yrs |
| Maeam-dong | 293 | 0.1% | 50.9 yrs |
| Yeocheon-dong | 57 | 0% | 56.8 yrs |
| Yongyeon-dong | 9 | 0% | 55.8 yrs |
| Hwangseong-dong | 8 | 0% | 53 yrs |
| Seongam-dong | 7 | 0% | 74.3 yrs |
| Bugok-dong | 6 | 0% | 60.5 yrs |
The top three areas hold 63.5% of the population of Nam-gu, Ulsan.
Frequently asked questionsβ
Nam-gu, Ulsan has 304,655 residents as of September 2026., 422 more than a year earlier.
Sinjeong-dong, home to 89,211 residents (29.3% of Nam-gu, Ulsan).
It is 44.6 as of September 2026., 1.1 years below the national average of 45.7. Among its neighborhoods, Duwang-dong is youngest at 39.8 and Seongam-dong oldest at 74.3.
It fell 2.2% over 4 years, from 311,396 in 2022 to 304,655 in September 2026.
As of August 2026, the most people moved in from Jung-gu (382) and the most moved out to Ulju-gun (372). Net migration varied across the past 12 months, totaling +251.
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