COEX & World Trade Center, Samseong-dong, Gangnam-guGangnam Station Glass Dome Entrance, Yeoksam-dong, Gangnam-guGalleria Department Store & Cheongdam Luxury Street, Cheongdam-dong, Gangnam-guApgujeong Rodeo Street, Apgujeong-dong, Gangnam-guSinsa-dong Garosu-gil, Sinsa-dong, Gangnam-guTower Palace & Yangjaecheon Stream, Dogok-dong, Gangnam-guYangjaecheon Trail & Gaepo-dong Apartments, Gaepo-dong, Gangnam-guDaechi Reservoir Sports Park, Daechi-dong, Gangnam-gu
Total population552,357people
Households245,029households
Average age43.1yrs
Sex ratioMale263,451peopleFemale288,906people47.7%52.3%

Population change

Change over time

4-year trend

Unit: people

532,500 in 2022540,730 in 2023558,312 in 2024556,421 in 2025552,357 in 202620222023202420252026

532,500 in 2022552,357 in 2026

Up 3.7% over the past 4 years.

Migration

As of August 2026

Monthly Overview

Moved in6,789people
Moved out7,110people
Net migrationβˆ’321people

Net migration by month

Unit: people

βˆ’2259βˆ’18279βˆ’636βˆ’370βˆ’1,460βˆ’1,011βˆ’389βˆ’239βˆ’265βˆ’321SepOctNovDecJanFebMarAprMayJunJulAugβˆ’225 in Sep 20259 in Oct 2025βˆ’182 in Nov 202579 in Dec 2025βˆ’636 in Jan 2026βˆ’370 in Feb 2026βˆ’1,460 in Mar 2026βˆ’1,011 in Apr 2026βˆ’389 in May 2026βˆ’239 in Jun 2026βˆ’265 in Jul 2026βˆ’321 in Aug 2026

Net inflowNet outflow

Top origins

Unit: people

Top destinations

Unit: people

Outflows exceeded inflows in 10 of the past 12 months, for a net loss of 5,010.

Want more detail on migration in Gangnam-gu?See more Gangnam-gu statistics on GData

Population structure

Population by age

As of September 2026

Population by age and sex

Unit: people

Under 1010s20s30sπŸ‘‘ 40s50s60s70s80s90s100+15,95333,22728,52936,89244,96544,48329,79320,3638,3658621915,03730,53832,67941,75153,79544,64233,39025,2769,7122,00481

Male 263,451Female 288,906

Age structure

Unit: %

Youth 11.4%Working age 70.8%Seniors 17.8%11.4%70.8%17.8%

Youth 11.4%Working age 70.8%Seniors 17.8%

40s is the largest group, at 98,760 people.

Population ranking

Population by region

As of September 2026
  • YoungestYeoksam-dong41.1 yrs
  • OldestSuseo-dong49.8 yrs
RegionShare
Gaepo-dong87,31215.8%43.5 yrs
Daechi-dong80,05914.5%41.2 yrs
Yeoksam-dong70,31712.7%41.1 yrs
Dogok-dong51,5869.3%42.9 yrs
Irwon-dong46,1548.4%42.3 yrs
Samseong-dong42,8537.8%43.2 yrs
Nonhyeon-dong40,6697.4%44.1 yrs
Apgujeong-dong29,8685.4%45.8 yrs
Jagok-dong28,0895.1%41.5 yrs
Cheongdam-dong26,4804.8%44 yrs

The top three areas hold 43.0% of the population of Gangnam-gu, Seoul.

Want to explore Gangnam-gu's demographics in more detail?See more Gangnam-gu statistics on GData

Frequently asked questions❓

Gangnam-gu, Seoul has 552,357 residents as of September 2026., 4,064 fewer than a year earlier.
Gaepo-dong, home to 87,312 residents (15.8% of Gangnam-gu, Seoul).
It is 43.1 as of September 2026., 2.6 years below the national average of 45.7. Among its neighborhoods, Yeoksam-dong is youngest at 41.1 and Suseo-dong oldest at 49.8.
It rose 3.7% over 4 years, from 532,500 in 2022 to 552,357 in September 2026.
As of August 2026, the most people moved in from Seocho-gu (452) and the most moved out to Seocho-gu (732). Outflows exceeded inflows in 10 of the past 12 months, for a net loss of 5,010.
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 🌐