Total population376,504people
Households190,744households
Average age47.4yrs
Sex ratioMale183,550peopleFemale192,954people48.8%51.2%
Population change
Change over time
4-year trendUnit: people
387,840 in 2022376,504 in 2026
Down 2.9% over the past 4 years.
Migration
As of August 2026Monthly Overview
Moved in3,694people
Moved out3,428people
Net migration266people
Net migration by month
Unit: people
Net inflowNet outflow
Top origins
Unit: people
| Region | Moved in |
|---|---|
| Nowon-gu | 236 |
| Gwangjin-gu | 195 |
| Dongdaemun-gu | 183 |
| Namyangju-si, Gyeonggi | 148 |
| Seongbuk-gu | 107 |
Top destinations
Unit: people
| Region | Moved out |
|---|---|
| Nowon-gu | 216 |
| Namyangju-si, Gyeonggi | 176 |
| Dongdaemun-gu | 162 |
| Gwangjin-gu | 91 |
| Uijeongbu-si, Gyeonggi | 86 |
Net migration varied across the past 12 months, totaling β75.
Population structure
Population by age
As of September 2026Population by age and sex
Unit: people
Male 183,550Female 192,954
Age structure
Unit: %
Youth 7.3%Working age 68.5%Seniors 24.2%
60s is the largest group, at 64,428 people.
Population ranking
Population by region
As of September 2026- YoungestSangbong-dong44.7 yrs
- OldestMyeonmok-dong48.4 yrs
| Region | Share | ||
|---|---|---|---|
| Myeonmok-dong | 129,250 | 34.3% | 48.4 yrs |
| Sinnae-dong | 55,398 | 14.7% | 47.2 yrs |
| Mangu-dong | 53,106 | 14.1% | 47.2 yrs |
| Muk-dong | 50,644 | 13.5% | 46.7 yrs |
| Sangbong-dong | 44,697 | 11.9% | 44.7 yrs |
| Junghwa-dong | 43,409 | 11.5% | 48.3 yrs |
The top three areas hold 63.1% of the population of Jungnang-gu, Seoul.
Frequently asked questionsβ
Jungnang-gu, Seoul has 376,504 residents as of September 2026., 774 fewer than a year earlier.
Myeonmok-dong, home to 129,250 residents (34.3% of Jungnang-gu, Seoul).
It is 47.4 as of September 2026., 1.7 years above the national average of 45.7. Among its neighborhoods, Sangbong-dong is youngest at 44.7 and Myeonmok-dong oldest at 48.4.
It fell 2.9% over 4 years, from 387,840 in 2022 to 376,504 in September 2026.
As of August 2026, the most people moved in from Nowon-gu (236) and the most moved out to Nowon-gu (216). Net migration varied across the past 12 months, totaling β75.
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