Hwayanggugok Valley Rocks, Cheongcheon-myeon, Goesan-gun
Total population37,174people
Households22,080households
Average age57.7yrs
Sex ratioMale19,291peopleFemale17,883people51.9%48.1%

Population change

Change over time

4-year trend

Unit: people

37,110 in 202236,625 in 202336,023 in 202435,808 in 202537,174 in 202620222023202420252026

37,110 in 202237,174 in 2026

Barely changed over the past 4 years.

Migration

As of August 2026

Monthly Overview

Moved in266people
Moved out319people
Net migrationβˆ’53people

Net migration by month

Unit: people

βˆ’89βˆ’22282,719βˆ’92βˆ’349βˆ’209βˆ’141228βˆ’98βˆ’53SepOctNovDecJanFebMarAprMayJunJulAugβˆ’89 in Sep 2025βˆ’22 in Oct 202528 in Nov 20252,719 in Dec 2025βˆ’92 in Jan 2026βˆ’349 in Feb 2026βˆ’209 in Mar 2026βˆ’14 in Apr 202612 in May 202628 in Jun 2026βˆ’98 in Jul 2026βˆ’53 in Aug 2026

Net inflowNet outflow

Top origins

Unit: people

Top destinations

Unit: people

Outflows led in 8 of the past 12 months, but a few large inflow months left a net gain of 1,861.

Want more detail on migration in Goesan-gun?See more Goesan-gun statistics on GData

Population structure

Population by age

As of September 2026

Population by age and sex

Unit: people

Under 1010s20s30s40s50sπŸ‘‘ 60s70s80s90s100+5198761,2171,1741,6953,3845,5513,4041,31615414748438359091,3652,7154,7233,2422,22354113

Male 19,291Female 17,883

Age structure

Unit: %

Youth 5.0%Working age 51.9%Seniors 43.1%51.9%43.1%

Youth 5.0%Working age 51.9%Seniors 43.1%

60s is the largest group, at 10,274 people.

Population ranking

Population by region

As of September 2026
  • YoungestGoesan-eup49.7 yrs
  • OldestYeonpung-myeon61.8 yrs
RegionShare
Goesan-eup9,41825.3%49.7 yrs
Cheongcheon-myeon5,27414.2%61.1 yrs
Cheongan-myeon3,3909.1%59.6 yrs
Chilseong-myeon3,1988.6%58.4 yrs
Buljeong-myeon2,6847.2%61.8 yrs
Sari-myeon2,6057%60 yrs
Sosu-myeon2,3016.2%59.6 yrs
Yeonpung-myeon2,2236%61.8 yrs
Mungwang-myeon2,1125.7%60.2 yrs
Gammul-myeon2,0145.4%60.3 yrs

The top three areas hold 48.6% of the population of Goesan-gun, Chungcheongbuk-do.

Want to explore Goesan-gun's demographics in more detail?See more Goesan-gun statistics on GData

Frequently asked questions❓

Goesan-gun, Chungcheongbuk-do has 37,174 residents as of September 2026., 1,366 more than a year earlier.
Goesan-eup, home to 9,418 residents (25.3% of Goesan-gun, Chungcheongbuk-do).
It is 57.7 as of September 2026., 12 years above the national average of 45.7. Among its towns and townships, Goesan-eup is youngest at 49.7 and Yeonpung-myeon oldest at 61.8.
It rose 0.2% over 4 years, from 37,110 in 2022 to 37,174 in September 2026.
As of August 2026, the most people moved in from Cheongju-si (47) and the most moved out to Cheongju-si (79). Outflows led in 8 of the past 12 months, but a few large inflow months left a net gain of 1,861.
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 🌐