Total population297,820people
Households139,194households
Average age48.8yrs
Sex ratioMale143,615peopleFemale154,205people48.2%51.8%
Population change
Change over time
4-year trendUnit: people
313,835 in 2022297,820 in 2026
Down 5.1% over the past 4 years.
Migration
As of August 2026Monthly Overview
Moved in2,593people
Moved out2,737people
Net migrationβ144people
Net migration by month
Unit: people
Net inflowNet outflow
Top origins
Unit: people
| Region | Moved in |
|---|---|
| Nowon-gu | 288 |
| Gangbuk-gu | 231 |
| Seongbuk-gu | 112 |
| Uijeongbu-si, Gyeonggi | 93 |
| Namyangju-si, Gyeonggi | 59 |
Top destinations
Unit: people
| Region | Moved out |
|---|---|
| Gangbuk-gu | 255 |
| Nowon-gu | 242 |
| Uijeongbu-si, Gyeonggi | 159 |
| Seongbuk-gu | 103 |
| Dongdaemun-gu | 62 |
Outflows exceeded inflows in every one of the past 12 months, for a net loss of 1,988.
Population structure
Population by age
As of September 2026Population by age and sex
Unit: people
Male 143,615Female 154,205
Age structure
Unit: %
Youth 7.3%Working age 65.9%Seniors 26.8%
60s is the largest group, at 53,188 people.
Population ranking
Population by region
As of September 2026- YoungestChang-dong47.5 yrs
- OldestDobong-dong51.8 yrs
| Region | Share | ||
|---|---|---|---|
| Chang-dong | 111,509 | 37.4% | 47.5 yrs |
| Ssangmun-dong | 71,032 | 23.9% | 48.6 yrs |
| Banghak-dong | 70,315 | 23.6% | 49.3 yrs |
| Dobong-dong | 44,964 | 15.1% | 51.8 yrs |
The top three areas hold 84.9% of the population of Dobong-gu, Seoul.
Frequently asked questionsβ
Dobong-gu, Seoul has 297,820 residents as of September 2026., 3,059 fewer than a year earlier.
Chang-dong, home to 111,509 residents (37.4% of Dobong-gu, Seoul).
It is 48.8 as of September 2026., 3.1 years above the national average of 45.7. Among its neighborhoods, Chang-dong is youngest at 47.5 and Dobong-dong oldest at 51.8.
It fell 5.1% over 4 years, from 313,835 in 2022 to 297,820 in September 2026.
As of August 2026, the most people moved in from Nowon-gu (288) and the most moved out to Gangbuk-gu (255). Outflows exceeded inflows in every one of the past 12 months, for a net loss of 1,988.
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