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Population of Jeju-si, Jeju-do

As of September 2026

Total population484,149people
Households228,565households
Average age44.2yrs
Sex ratioMale241,166peopleFemale242,983people49.8%50.2%

Population change

Change over time

4-year trend

Unit: people

494,059 in 2022492,379 in 2023489,171 in 2024485,783 in 2025484,149 in 202620222023202420252026

494,059 in 2022484,149 in 2026

Down 2% over the past 4 years.

Migration

As of August 2026

Monthly Overview

Moved in3,971people
Moved out3,922people
Net migration49people

Net migration by month

Unit: people

βˆ’120βˆ’148βˆ’1946βˆ’372βˆ’255βˆ’115βˆ’35βˆ’165βˆ’181349SepOctNovDecJanFebMarAprMayJunJulAugβˆ’120 in Sep 2025βˆ’148 in Oct 2025βˆ’194 in Nov 20256 in Dec 2025βˆ’372 in Jan 2026βˆ’255 in Feb 2026βˆ’115 in Mar 2026βˆ’35 in Apr 2026βˆ’165 in May 2026βˆ’18 in Jun 202613 in Jul 202649 in Aug 2026

Net inflowNet outflow

Top origins

Unit: people

RegionMoved in
Seogwipo-si297
Gwanak-gu, Seoul44
Gangnam-gu, Seoul35
Seongnam-si, Gyeonggi35
Yongin-si, Gyeonggi34

Top destinations

Unit: people

RegionMoved out
Seogwipo-si207
Gangnam-gu, Seoul53
Gwanak-gu, Seoul51
Suwon-si, Gyeonggi50
Yongin-si, Gyeonggi48

Outflows exceeded inflows in 9 of the past 12 months, for a net loss of 1,354.

Want more detail on migration in Jeju-si?See more Jeju-si statistics on GData

Population structure

Population by age

As of September 2026

Population by age and sex

Unit: people

Under 1010s20s30s40sπŸ‘‘ 50s60s70s80s90s100+16,43226,73026,05230,60937,54943,69934,87017,2957,007915815,76425,35123,28129,44537,12442,05734,81220,09611,6643,258128

Male 241,166Female 242,983

Age structure

Unit: %

Youth 12.0%Working age 68.3%Seniors 19.7%12.0%68.3%19.7%

Youth 12.0%Working age 68.3%Seniors 19.7%

50s is the largest group, at 85,756 people.

Population ranking

Population by region

As of September 2026
  • YoungestDoryeonil-dong37.4 yrs
  • OldestChuja-myeon57.3 yrs
RegionShare
Nohyeong-dong51,34510.6%41.1 yrs
Yeon-dong42,9718.9%42.5 yrs
Aewol-eup38,3957.9%46.3 yrs
Ildoi-dong30,5996.3%45.6 yrs
Idoi-dong30,1786.2%41.8 yrs
Jocheon-eup25,9765.4%47.3 yrs
Arail-dong20,9404.3%39.4 yrs
Hallim-eup19,9634.1%49.9 yrs
Oedoil-dong16,5033.4%39.4 yrs
Donam-dong15,1853.1%44.3 yrs

The top three areas hold 27.4% of the population of Jeju-si, Jeju-do.

Want to explore Jeju-si's demographics in more detail?See more Jeju-si statistics on GData

Frequently asked questions❓

Jeju-si, Jeju-do has 484,149 residents as of September 2026., 1,634 fewer than a year earlier.
Nohyeong-dong, home to 51,345 residents (10.6% of Jeju-si, Jeju-do).
It is 44.2 as of September 2026., 1.5 years below the national average of 45.7. Among its neighborhoods, Doryeonil-dong is youngest at 37.4 and Chuja-myeon oldest at 57.3.
It fell 2% over 4 years, from 494,059 in 2022 to 484,149 in September 2026.
As of August 2026, the most people moved in from Seogwipo-si (297) and the most moved out to Seogwipo-si (207). Outflows exceeded inflows in 9 of the past 12 months, for a net loss of 1,354.
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 🌐