Total population1,601,367people
Households808,665households
Average age46.6yrs
Sex ratioMale816,717peopleFemale784,650people51.0%49.0%
Population change
Change over time
4-year trendUnit: people
1,596,886 in 20221,601,367 in 2026
Barely changed over the past 4 years.
Migration
As of August 2026Monthly Overview
Moved in14,084people
Moved out13,522people
Net migration562people
Net migration by month
Unit: people
Net inflowNet outflow
Top origins
Unit: people
| Region | Moved in |
|---|---|
| Gyeonggi | 1,617 |
| Seoul | 901 |
| Daejeon | 576 |
| Chungcheongnam-do | 471 |
| Sejong | 314 |
Top destinations
Unit: people
| Region | Moved out |
|---|---|
| Gyeonggi | 1,531 |
| Seoul | 897 |
| Daejeon | 568 |
| Chungcheongnam-do | 445 |
| Gangwon | 272 |
Inflows exceeded outflows in every one of the past 12 months, for a net gain of 13,766.
Population structure
Population by age
As of September 2026Population by age and sex
Unit: people
Male 816,717Female 784,650
Age structure
Unit: %
Youth 10.1%Working age 66.0%Seniors 23.9%
60s is the largest group, at 272,836 people.
Population ranking
Population by region
As of September 2026| Region | Share | ||
|---|---|---|---|
| Cheongju-si | 860,215 | 53.7% | 43.4 yrs |
| Chungju-si | 205,691 | 12.8% | 48.4 yrs |
| Jecheon-si | 127,898 | 8% | 49.7 yrs |
| Eumseong-gun | 96,114 | 6% | 49.6 yrs |
| Jincheon-gun | 85,649 | 5.3% | 45.7 yrs |
| Okcheon-gun | 50,730 | 3.2% | 54 yrs |
| Yeongdong-gun | 43,089 | 2.7% | 55.9 yrs |
| Goesan-gun | 37,174 | 2.3% | 57.7 yrs |
| Jeungpyeong-gun | 36,777 | 2.3% | 46.7 yrs |
| Boeun-gun | 31,549 | 2% | 56.8 yrs |
| Danyang-gun | 26,481 | 1.7% | 56.7 yrs |
The top three areas hold 74.5% of the population of Chungcheongbuk-do.
Frequently asked questionsβ
Chungcheongbuk-do has 1,601,367 residents as of September 2026., 9,402 more than a year earlier.
Cheongju-si, home to 860,215 residents (53.7% of Chungcheongbuk-do).
It is 46.6 as of September 2026., 0.9 years above the national average of 45.7. Among its cities and counties, Cheongju-si is youngest at 43.4 and Goesan-gun oldest at 57.7.
It rose 0.3% over 4 years, from 1,596,886 in 2022 to 1,601,367 in September 2026.
As of August 2026, the most people moved in from Gyeonggi (1,617) and the most moved out to Gyeonggi (1,531). Inflows exceeded outflows in every one of the past 12 months, for a net gain of 13,766.
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