Total population21,184people
Households11,959households
Average age55.9yrs
Sex ratioMale10,711peopleFemale10,473people50.6%49.4%
Population change
Change over time
4-year trendUnit: people
21,497 in 202221,184 in 2026
Down 1.5% over the past 4 years.
Migration
As of August 2026Monthly Overview
Moved in119people
Moved out104people
Net migration15people
Net migration by month
Unit: people
Net inflowNet outflow
Top origins
Unit: people
Top destinations
Unit: people
Inflows exceeded outflows in every one of the past 12 months, for a net gain of 1,040.
Population structure
Population by age
As of September 2026Population by age and sex
Unit: people
Male 10,711Female 10,473
Age structure
Unit: %
Youth 6.6%Working age 52.6%Seniors 40.8%
60s is the largest group, at 4,756 people.
Population ranking
Population by region
As of September 2026- YoungestJangsu-eup50.6 yrs
- OldestCheoncheon-myeon62 yrs
| Region | Share | ||
|---|---|---|---|
| Jangsu-eup | 7,281 | 34.4% | 50.6 yrs |
| Janggye-myeon | 4,193 | 19.8% | 54.2 yrs |
| Beonam-myeon | 2,188 | 10.3% | 61.7 yrs |
| Gyenam-myeon | 2,094 | 9.9% | 58.2 yrs |
| Cheoncheon-myeon | 1,999 | 9.4% | 62 yrs |
| Sanseo-myeon | 1,913 | 9% | 60.5 yrs |
| Gyebuk-myeon | 1,516 | 7.2% | 60.2 yrs |
The top three areas hold 64.5% of the population of Jangsu-gun, Jeonbuk-do.
Frequently asked questionsβ
Jangsu-gun, Jeonbuk-do has 21,184 residents as of September 2026., 794 more than a year earlier.
Jangsu-eup, home to 7,281 residents (34.4% of Jangsu-gun, Jeonbuk-do).
It is 55.9 as of September 2026., 10.2 years above the national average of 45.7. Among its towns and townships, Jangsu-eup is youngest at 50.6 and Cheoncheon-myeon oldest at 62.
It fell 1.5% over 4 years, from 21,497 in 2022 to 21,184 in September 2026.
As of August 2026, the most people moved in from Jeonju-si (28) and the most moved out to Jeonju-si (17). Inflows exceeded outflows in every one of the past 12 months, for a net gain of 1,040.
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