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Population of Jecheon-si, Chungcheongbuk

Resident registration data, June 2026 (MOIS)

Total population128,192people
Average age49.6yrs

Population structure

Population by age

10-year bands · by sex

Population by age and sex

Unit: people

Under 1010s20s30s40s50s👑 60s70s80s90s100+3,0595,6137,0386,3157,75911,33912,7787,6032,90330842,7825,3485,6045,0517,15410,77512,6828,2124,8301,00134

Male 64,719Female 63,473

Age structure

Unit: %

Youth 8.8%Working age 61.8%Seniors 29.4%8.8%61.8%29.4%

Youth 8.8%Working age 61.8%Seniors 29.4%

60s is the largest group, at 25,460 people.

Population change

Change over time

4-year trend

Unit: people

131,969 in 2022131,231 in 2023129,618 in 2024128,437 in 2025128,192 in 202620222023202420252026

131,969 in 2022128,192 in 2026

Down 2.9% over the past 4 years.

Population ranking

Jangnak-dong has the largest population of the 36 neighborhoods.

Population by region

36
  • YoungestSinwol-dong36.7 yrs
  • OldestMyeongji-dong64.3 yrs

There is a 27.6-year gap in average age between the youngest and the oldest area.

RegionPopulationShareAverage age
Jangnak-dong18,32114.3%42.6 yrs
Cheongjeon-dong14,02910.9%53 yrs
Haso-dong10,5538.2%48.4 yrs
Goam-dong7,8876.2%46.6 yrs
Gangje-dong7,7856.1%40.9 yrs
Sinbaek-dong7,4995.8%47.6 yrs
Sinwol-dong6,5985.1%36.7 yrs
Bongyang-eup6,4195%58.9 yrs
Hwasan-dong5,5284.3%51.8 yrs
Yeongcheon-dong5,0153.9%50.9 yrs
Songhak-myeon4,5453.5%59.1 yrs
Baegun-myeon3,2682.5%61.9 yrs
Donghyeon-dong2,8842.2%53.4 yrs
Wangam-dong2,8262.2%39.4 yrs
Uirim-dong2,6352.1%53.6 yrs
Cheonnam-dong2,6072%39.2 yrs
Deoksan-myeon2,0451.6%60.2 yrs
Susan-myeon1,9691.5%63.6 yrs
Gyo-dong1,8081.4%55.3 yrs
Geumseong-myeon1,6751.3%62.3 yrs
Seobu-dong1,6151.3%57.6 yrs
Mosan-dong1,5271.2%42.5 yrs
Namcheon-dong1,5091.2%56.7 yrs
Cheongpung-myeon1,2231%61.7 yrs
Jungangno2-ga1,1500.9%55.9 yrs
Myeong-dong1,0580.8%52.8 yrs
Duhak-dong8370.7%55.8 yrs
Gomyeong-dong8260.6%56.3 yrs
Hansu-myeon6440.5%60.5 yrs
Heukseok-dong5150.4%52.2 yrs
Sangok-dong3830.3%61.7 yrs
Myeongji-dong3430.3%64.3 yrs
Sin-dong1890.1%61.6 yrs
Jungangno1-ga1770.1%57.1 yrs
Jajak-dong1710.1%62.5 yrs
Daerang-dong1290.1%55.8 yrs

The top three areas hold 33.5% of the population of Jecheon-si, Chungcheongbuk.

Other regions

Other districts in Chungcheongbuk

13

Frequently asked questions❓

Jecheon-si, Chungcheongbuk has 128,192 residents as of June 2026., 245 fewer than a year earlier.
Jangnak-dong, home to 18,321 residents — 14.3% of Jecheon-si, Chungcheongbuk.
It is 49.6 as of June 2026., 4 years above the national average of 45.6. Among its neighborhoods, Sinwol-dong is youngest at 36.7 and Myeongji-dong oldest at 64.3.
It fell 2.9% over 4 years, from 131,969 in 2022 to 128,192 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 🌐