Total population754,159people
Households344,209households
Average age46.1yrs
Sex ratioMale370,968peopleFemale383,191people49.2%50.8%
Population change
Change over time
4-year trendUnit: people
796,575 in 2022754,159 in 2026
Down 5.3% over the past 4 years.
Migration
As of August 2026Monthly Overview
Moved in6,063people
Moved out6,733people
Net migrationβ670people
Net migration by month
Unit: people
Net inflowNet outflow
Top origins
Unit: people
| Region | Moved in |
|---|---|
| Guro-gu, Seoul | 246 |
| Bupyeong-gu, Incheon | 199 |
| Yangcheon-gu, Seoul | 184 |
| Gangseo-gu, Seoul | 156 |
| Siheung-si | 149 |
Top destinations
Unit: people
| Region | Moved out |
|---|---|
| Bupyeong-gu, Incheon | 329 |
| Siheung-si | 290 |
| Gangseo-gu, Seoul | 112 |
| Guro-gu, Seoul | 112 |
| Namdong-gu, Incheon | 111 |
Outflows exceeded inflows in every one of the past 12 months, for a net loss of 7,471.
Population structure
Population by age
As of September 2026Population by age and sex
Unit: people
Male 370,968Female 383,191
Age structure
Unit: %
Youth 9.0%Working age 69.4%Seniors 21.6%
60s is the largest group, at 132,948 people.
Population ranking
Population by region
As of September 2026Wonmi-gu alone holds 50.6% of the population of Bucheon-si, Gyeonggi.
Frequently asked questionsβ
Bucheon-si, Gyeonggi has 754,159 residents as of September 2026., 8,033 fewer than a year earlier.
Wonmi-gu, home to 381,864 residents (50.6% of Bucheon-si, Gyeonggi).
It is 46.1 as of September 2026., close to the national average of 45.7. Among its districts, Wonmi-gu is youngest at 45.5 and Ojeong-gu oldest at 48.
It fell 5.3% over 4 years, from 796,575 in 2022 to 754,159 in September 2026.
As of August 2026, the most people moved in from Guro-gu, Seoul (246) and the most moved out to Bupyeong-gu, Incheon (329). Outflows exceeded inflows in every one of the past 12 months, for a net loss of 7,471.
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