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Population of Suji-gu, Yongin-si

Resident registration data, June 2026 (MOIS)

Total population369,230people
Average age42.1yrs

Population structure

Population by age

10-year bands · by sex

Population by age and sex

Unit: people

Under 1010s20s30s👑 40s50s60s70s80s90s100+13,68523,09920,45223,17930,70930,85419,47711,1786,237727813,26022,46120,09524,57433,88031,79219,89014,7447,5371,35339

Male 179,605Female 189,625

Age structure

Unit: %

Youth 13.5%Working age 69.9%Seniors 16.7%13.5%69.9%16.7%

Youth 13.5%Working age 69.9%Seniors 16.7%

40s is the largest group, at 64,589 people.

Population change

Change over time

4-year trend

Unit: people

375,834 in 2022378,049 in 2023375,984 in 2024375,156 in 2025369,230 in 202620222023202420252026

375,834 in 2022369,230 in 2026

Down 1.8% over the past 4 years.

Population ranking

Sanghyeon-dong has the largest population of the 7 neighborhoods.

Population by region

7
  • YoungestPungdeokcheon-dong40.4 yrs
  • OldestGogi-dong47.1 yrs

There is a 6.7-year gap in average age between the youngest and the oldest area.

RegionPopulationShareAverage age
Sanghyeon-dong79,10521.4%41.7 yrs
Jukjeon-dong72,28319.6%43.2 yrs
Pungdeokcheon-dong71,59719.4%40.4 yrs
Seongbok-dong54,40214.7%43.3 yrs
Dongcheon-dong46,84712.7%41.2 yrs
Sinbong-dong40,97511.1%42.8 yrs
Gogi-dong4,0211.1%47.1 yrs

The top three areas hold 60.4% of the population of Suji-gu, Yongin-si.

Other regions

Other districts in Gyeonggi

16

Frequently asked questions❓

Suji-gu, Yongin-si has 369,230 residents as of June 2026., 5,926 fewer than a year earlier.
Sanghyeon-dong, home to 79,105 residents — 21.4% of Suji-gu, Yongin-si.
It is 42.1 as of June 2026., 3.5 years below the national average of 45.6. Among its neighborhoods, Pungdeokcheon-dong is youngest at 40.4 and Gogi-dong oldest at 47.1.
It fell 1.8% over 4 years, from 375,834 in 2022 to 369,230 in June 2026.
This is resident registration data from Korea's Ministry of the Interior and Safety. Figures are as of the end of June 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 🌐