Total population330,791people
Households172,318households
Average age44.4yrs
Sex ratioMale158,118peopleFemale172,673people47.8%52.2%
Population change
Change over time
4-year trendUnit: people
339,567 in 2022330,791 in 2026
Down 2.6% over the past 4 years.
Migration
As of August 2026Monthly Overview
Moved in3,637people
Moved out3,646people
Net migrationβ9people
Net migration by month
Unit: people
Net inflowNet outflow
Top origins
Unit: people
| Region | Moved in |
|---|---|
| Songpa-gu | 159 |
| Seongdong-gu | 156 |
| Gangdong-gu | 139 |
| Dongdaemun-gu | 115 |
| Gangnam-gu | 108 |
Top destinations
Unit: people
| Region | Moved out |
|---|---|
| Jungnang-gu | 195 |
| Songpa-gu | 146 |
| Gangdong-gu | 144 |
| Dongdaemun-gu | 128 |
| Seongdong-gu | 109 |
Outflows exceeded inflows in 9 of the past 12 months, for a net loss of 1,769.
Population structure
Population by age
As of September 2026Population by age and sex
Unit: people
Male 158,118Female 172,673
Age structure
Unit: %
Youth 7.4%Working age 73.1%Seniors 19.5%
30s is the largest group, at 57,209 people.
Population ranking
Population by region
As of September 2026- YoungestHwayang-dong37 yrs
- OldestJunggok-dong47.1 yrs
| Region | Share | ||
|---|---|---|---|
| Jayang-dong | 94,139 | 28.5% | 45 yrs |
| Junggok-dong | 76,386 | 23.1% | 47.1 yrs |
| Guui-dong | 75,404 | 22.8% | 44.7 yrs |
| Gwangjang-dong | 32,833 | 9.9% | 41.3 yrs |
| Hwayang-dong | 22,936 | 6.9% | 37 yrs |
| Gunja-dong | 18,500 | 5.6% | 44 yrs |
| Neung-dong | 10,593 | 3.2% | 43.5 yrs |
The top three areas hold 74.3% of the population of Gwangjin-gu, Seoul.
Frequently asked questionsβ
Gwangjin-gu, Seoul has 330,791 residents as of September 2026., 1,706 fewer than a year earlier.
Jayang-dong, home to 94,139 residents (28.5% of Gwangjin-gu, Seoul).
It is 44.4 as of September 2026., 1.3 years below the national average of 45.7. Among its neighborhoods, Hwayang-dong is youngest at 37 and Junggok-dong oldest at 47.1.
It fell 2.6% over 4 years, from 339,567 in 2022 to 330,791 in September 2026.
As of August 2026, the most people moved in from Songpa-gu (159) and the most moved out to Jungnang-gu (195). Outflows exceeded inflows in 9 of the past 12 months, for a net loss of 1,769.
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