Total population199,459people
Households101,969households
Average age45.2yrs
Sex ratioMale94,706peopleFemale104,753people47.5%52.5%
Population change
Change over time
4-year trendUnit: people
222,230 in 2022199,459 in 2026
Down 10.2% over the past 4 years.
Migration
As of August 2026Monthly Overview
Moved in2,386people
Moved out2,512people
Net migrationβ126people
Net migration by month
Unit: people
Net inflowNet outflow
Top origins
Unit: people
| Region | Moved in |
|---|---|
| Mapo-gu | 150 |
| Gangnam-gu | 93 |
| Seocho-gu | 88 |
| Goyang-si, Gyeonggi | 78 |
| Yeongdeungpo-gu | 76 |
Top destinations
Unit: people
| Region | Moved out |
|---|---|
| Seocho-gu | 187 |
| Mapo-gu | 161 |
| Gangnam-gu | 96 |
| Yeongdeungpo-gu | 92 |
| Dongjak-gu | 91 |
Outflows exceeded inflows in every one of the past 12 months, for a net loss of 3,378.
Population structure
Population by age
As of September 2026Population by age and sex
Unit: people
Male 94,706Female 104,753
Age structure
Unit: %
Youth 8.0%Working age 71.6%Seniors 20.4%
30s is the largest group, at 36,951 people.
Population ranking
Population by region
As of September 2026- YoungestYongsandong4-ga25.5 yrs
- OldestNamyeong-dong54.9 yrs
| Region | Share | ||
|---|---|---|---|
| Ichon-dong | 32,607 | 16.3% | 45 yrs |
| Huam-dong | 15,584 | 7.8% | 46.3 yrs |
| Itaewon-dong | 13,694 | 6.9% | 47.4 yrs |
| Hannam-dong | 13,658 | 6.8% | 45.3 yrs |
| Hyochang-dong | 10,383 | 5.2% | 43.9 yrs |
| Yongsandong2-ga | 8,350 | 4.2% | 48 yrs |
| Hangangno3-ga | 7,770 | 3.9% | 46.6 yrs |
| Hangangno2-ga | 7,429 | 3.7% | 39.4 yrs |
| Cheongpadong1-ga | 6,977 | 3.5% | 45.5 yrs |
| Wonhyoro1-ga | 6,848 | 3.4% | 41.2 yrs |
| Yongmun-dong | 5,901 | 3% | 45.8 yrs |
| Munbae-dong | 5,786 | 2.9% | 39.3 yrs |
| Dongbinggo-dong | 5,726 | 2.9% | 42.3 yrs |
| Seobinggo-dong | 5,609 | 2.8% | 47.3 yrs |
| Dowon-dong | 5,122 | 2.6% | 46.9 yrs |
| Bogwang-dong | 4,990 | 2.5% | 49.4 yrs |
| Seogye-dong | 4,843 | 2.4% | 47.7 yrs |
| Sancheon-dong | 4,723 | 2.4% | 44.4 yrs |
| Cheongpadong3-ga | 3,722 | 1.9% | 40.3 yrs |
| Wonhyoro4-ga | 3,600 | 1.8% | 45.4 yrs |
| Dongja-dong | 3,451 | 1.7% | 52.2 yrs |
| Cheongpadong2-ga | 3,248 | 1.6% | 43.5 yrs |
| Hangangno1-ga | 3,167 | 1.6% | 44.6 yrs |
| Garwol-dong | 2,993 | 1.5% | 45.3 yrs |
| Singye-dong | 2,617 | 1.3% | 44.8 yrs |
| Yongsandong5-ga | 2,241 | 1.1% | 46.7 yrs |
| Sinchang-dong | 2,211 | 1.1% | 45.4 yrs |
| Wonhyoro3-ga | 2,139 | 1.1% | 43.7 yrs |
| Wonhyoro2-ga | 1,831 | 0.9% | 43.2 yrs |
| Juseong-dong | 795 | 0.4% | 48.3 yrs |
| Cheongam-dong | 645 | 0.3% | 50 yrs |
| Namyeong-dong | 560 | 0.3% | 54.9 yrs |
| Yongsandong3-ga | 237 | 0.1% | 48.3 yrs |
| Yongsandong4-ga | 2 | 0% | 25.5 yrs |
The top three areas hold 31.0% of the population of Yongsan-gu, Seoul.
Frequently asked questionsβ
Yongsan-gu, Seoul has 199,459 residents as of September 2026., 3,304 fewer than a year earlier.
Ichon-dong, home to 32,607 residents (16.3% of Yongsan-gu, Seoul).
It is 45.2 as of September 2026., 0.5 years below the national average of 45.7. Among its neighborhoods, Yongsandong4-ga is youngest at 25.5 and Namyeong-dong oldest at 54.9.
It fell 10.2% over 4 years, from 222,230 in 2022 to 199,459 in September 2026.
As of August 2026, the most people moved in from Mapo-gu (150) and the most moved out to Seocho-gu (187). Outflows exceeded inflows in every one of the past 12 months, for a net loss of 3,378.
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