Total population478,603people
Households227,612households
Average age46yrs
Sex ratioMale237,205peopleFemale241,398people49.6%50.4%
Population change
Change over time
4-year trendUnit: people
509,710 in 2022478,603 in 2026
Down 6.1% over the past 4 years.
Migration
As of August 2026Monthly Overview
Moved in3,892people
Moved out3,996people
Net migrationβ104people
Net migration by month
Unit: people
Net inflowNet outflow
Top origins
Unit: people
| Region | Moved in |
|---|---|
| Michuhol-gu | 334 |
| Bupyeong-gu | 304 |
| Yeonsu-gu | 228 |
| Bucheon-si, Gyeonggi | 111 |
| Siheung-si, Gyeonggi | 111 |
Top destinations
Unit: people
| Region | Moved out |
|---|---|
| Michuhol-gu | 473 |
| Yeonsu-gu | 320 |
| Bupyeong-gu | 227 |
| Siheung-si, Gyeonggi | 97 |
| Bucheon-si, Gyeonggi | 85 |
Outflows exceeded inflows in 11 of the past 12 months, for a net loss of 2,165.
Population structure
Population by age
As of September 2026Population by age and sex
Unit: people
Male 237,205Female 241,398
Age structure
Unit: %
Youth 9.2%Working age 69.1%Seniors 21.7%
50s is the largest group, at 83,776 people.
Population ranking
Population by region
As of September 2026- YoungestSeochang-dong42.5 yrs
- OldestUnyeon-dong58.5 yrs
| Region | Share | ||
|---|---|---|---|
| Guwol-dong | 107,124 | 22.4% | 44.4 yrs |
| Mansu-dong | 105,856 | 22.1% | 49.1 yrs |
| Nonhyeon-dong | 99,900 | 20.9% | 43.8 yrs |
| Ganseok-dong | 91,072 | 19% | 47.4 yrs |
| Seochang-dong | 50,386 | 10.5% | 42.5 yrs |
| Namchon-dong | 9,908 | 2.1% | 49.7 yrs |
| Dorim-dong | 8,153 | 1.7% | 49 yrs |
| Jangsu-dong | 4,737 | 1% | 52.8 yrs |
| Gojan-dong | 703 | 0.1% | 56.8 yrs |
| Susan-dong | 495 | 0.1% | 58.1 yrs |
| Unyeon-dong | 269 | 0.1% | 58.5 yrs |
The top three areas hold 65.4% of the population of Namdong-gu, Incheon.
Frequently asked questionsβ
Namdong-gu, Incheon has 478,603 residents as of September 2026., 3,175 fewer than a year earlier.
Guwol-dong, home to 107,124 residents (22.4% of Namdong-gu, Incheon).
It is 46 as of September 2026., close to the national average of 45.7. Among its neighborhoods, Seochang-dong is youngest at 42.5 and Unyeon-dong oldest at 58.5.
It fell 6.1% over 4 years, from 509,710 in 2022 to 478,603 in September 2026.
As of August 2026, the most people moved in from Michuhol-gu (334) and the most moved out to Michuhol-gu (473). Outflows exceeded inflows in 11 of the past 12 months, for a net loss of 2,165.
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