Total population30,692people
Households16,655households
Average age48.3yrs
Sex ratioMale16,822peopleFemale13,870people54.8%45.2%
Population change
Change over time
4-year trendUnit: people
32,213 in 202230,692 in 2026
Down 4.7% over the past 4 years.
Migration
As of August 2026Monthly Overview
Moved in190people
Moved out274people
Net migrationβ84people
Net migration by month
Unit: people
Net inflowNet outflow
Top origins
Unit: people
| Region | Moved in |
|---|---|
| Paju-si, Gyeonggi | 10 |
| Sokcho-si | 8 |
| Chuncheon-si | 6 |
| Cheorwon-gun | 6 |
| Namdong-gu, Incheon | 5 |
Top destinations
Unit: people
| Region | Moved out |
|---|---|
| Chuncheon-si | 25 |
| Wonju-si | 15 |
| Anyang-si, Gyeonggi | 9 |
| Paju-si, Gyeonggi | 9 |
| Goyang-si, Gyeonggi | 7 |
Net migration varied across the past 12 months, totaling β168.
Population structure
Population by age
As of September 2026Population by age and sex
Unit: people
Male 16,822Female 13,870
Age structure
Unit: %
Youth 9.5%Working age 62.7%Seniors 27.8%
60s is the largest group, at 6,187 people.
Population ranking
Population by region
As of September 2026- YoungestSeohwa-myeon45.6 yrs
- OldestSangnam-myeon50.5 yrs
| Region | Share | ||
|---|---|---|---|
| Inje-eup | 10,164 | 33.1% | 46.2 yrs |
| Buk-myeon | 7,608 | 24.8% | 49.6 yrs |
| Girin-myeon | 4,893 | 15.9% | 49.5 yrs |
| Nam-myeon | 3,666 | 11.9% | 50.1 yrs |
| Seohwa-myeon | 2,350 | 7.7% | 45.6 yrs |
| Sangnam-myeon | 2,011 | 6.6% | 50.5 yrs |
The top three areas hold 73.8% of the population of Inje-gun, Gangwon.
Frequently asked questionsβ
Inje-gun, Gangwon has 30,692 residents as of September 2026., 218 fewer than a year earlier.
Inje-eup, home to 10,164 residents (33.1% of Inje-gun, Gangwon).
It is 48.3 as of September 2026., 2.6 years above the national average of 45.7. Among its towns and townships, Seohwa-myeon is youngest at 45.6 and Sangnam-myeon oldest at 50.5.
It fell 4.7% over 4 years, from 32,213 in 2022 to 30,692 in September 2026.
As of August 2026, the most people moved in from Paju-si, Gyeonggi (10) and the most moved out to Chuncheon-si (25). Net migration varied across the past 12 months, totaling β168.
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