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Population of Ongjin-gun, Incheon

Resident registration data, June 2026 (MOIS)

Total population19,340people
Average age54.1yrs

Population structure

Population by age

10-year bands · by sex

Population by age and sex

Unit: people

Under 1010s20s30s40s50s👑 60s70s80s90s100+2404621,4531,0761,1621,8112,6071,5935536712563945994906751,2222,1141,50079825313

Male 11,025Female 8,315

Age structure

Unit: %

Youth 4.8%Working age 58.3%Seniors 36.9%58.3%36.9%

Youth 4.8%Working age 58.3%Seniors 36.9%

60s is the largest group, at 4,721 people.

Population change

Change over time

4-year trend

Unit: people

20,556 in 202220,490 in 202320,174 in 202419,736 in 202519,340 in 202620222023202420252026

20,556 in 202219,340 in 2026

Down 5.9% over the past 4 years.

Population ranking

Yeongheung-myeon has the largest population of the 7 neighborhoods.

Population by region

7
  • YoungestYeonpyeong-myeon47.9 yrs
  • OldestDeokjeok-myeon61.2 yrs

There is a 13.3-year gap in average age between the youngest and the oldest area.

RegionPopulationShareAverage age
Yeongheung-myeon6,45133.4%54 yrs
Baengnyeong-myeon4,44223%48.8 yrs
Bukdo-myeon2,08310.8%60.6 yrs
Yeonpyeong-myeon1,8879.8%47.9 yrs
Deokjeok-myeon1,8369.5%61.2 yrs
Daecheong-myeon1,3567%54.9 yrs
Jawol-myeon1,2856.6%61 yrs

The top three areas hold 67.1% of the population of Ongjin-gun, Incheon.

Other regions

Other districts in Incheon

9

Frequently asked questions❓

Ongjin-gun, Incheon has 19,340 residents as of June 2026., 396 fewer than a year earlier.
Yeongheung-myeon, home to 6,451 residents — 33.4% of Ongjin-gun, Incheon.
It is 54.1 as of June 2026., 8.5 years above the national average of 45.6. Among its neighborhoods, Yeonpyeong-myeon is youngest at 47.9 and Deokjeok-myeon oldest at 61.2.
It fell 5.9% over 4 years, from 20,556 in 2022 to 19,340 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 🌐