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Population of Buk-gu, Ulsan

As of September 2026

Total population213,391people
Households90,541households
Average age41.9yrs
Sex ratioMale111,159peopleFemale102,232people52.1%47.9%

Population change

Change over time

4-year trend

Unit: people

218,489 in 2022217,533 in 2023216,662 in 2024215,824 in 2025213,391 in 202620222023202420252026

218,489 in 2022213,391 in 2026

Down 2.3% over the past 4 years.

Migration

As of August 2026

Monthly Overview

Moved in1,405people
Moved out1,585people
Net migrationβˆ’180people

Net migration by month

Unit: people

βˆ’231βˆ’103βˆ’230βˆ’141βˆ’445βˆ’447βˆ’302βˆ’161βˆ’313βˆ’142βˆ’223βˆ’180SepOctNovDecJanFebMarAprMayJunJulAugβˆ’231 in Sep 2025βˆ’103 in Oct 2025βˆ’230 in Nov 2025βˆ’141 in Dec 2025βˆ’445 in Jan 2026βˆ’447 in Feb 2026βˆ’302 in Mar 2026βˆ’161 in Apr 2026βˆ’313 in May 2026βˆ’142 in Jun 2026βˆ’223 in Jul 2026βˆ’180 in Aug 2026

Net inflowNet outflow

Top origins

Unit: people

RegionMoved in
Jung-gu173
Nam-gu155
Dong-gu88
Gyeongju-si, Gyeongsangbuk-do70
Ulju-gun39

Top destinations

Unit: people

RegionMoved out
Nam-gu230
Jung-gu206
Ulju-gun88
Gyeongju-si, Gyeongsangbuk-do76
Dong-gu57

Outflows exceeded inflows in every one of the past 12 months, for a net loss of 2,918.

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

Population structure

Population by age

As of September 2026

Population by age and sex

Unit: people

Under 1010s20s30s40sπŸ‘‘ 50s60s70s80s90s100+8,23213,21812,23716,18219,00318,47316,4145,7601,52011647,86012,3188,11412,92818,17018,99314,6436,1012,52556911

Male 111,159Female 102,232

Age structure

Unit: %

Youth 13.5%Working age 71.4%Seniors 15.1%13.5%71.4%15.1%

Youth 13.5%Working age 71.4%Seniors 15.1%

50s is the largest group, at 37,466 people.

Population ranking

Population by region

As of September 2026
  • YoungestSongjeong-dong36.5 yrs
  • OldestGadae-dong63.4 yrs
RegionShare
Maegok-dong30,94614.5%37.6 yrs
Hwabong-dong23,32610.9%43.3 yrs
Cheongok-dong19,4619.1%41.9 yrs
Jungsan-dong17,9198.4%40.6 yrs
Sincheon-dong17,1158%43 yrs
Myeongchon-dong13,4846.3%41.8 yrs
Sanha-dong12,4695.8%37.6 yrs
Songjeong-dong12,1725.7%36.5 yrs
Yangjeong-dong12,0695.7%40.3 yrs
Hogye-dong9,9054.6%48.3 yrs

The top three areas hold 34.6% of the population of Buk-gu, Ulsan.

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

Frequently asked questions❓

Buk-gu, Ulsan has 213,391 residents as of September 2026., 2,433 fewer than a year earlier.
Maegok-dong, home to 30,946 residents (14.5% of Buk-gu, Ulsan).
It is 41.9 as of September 2026., 3.8 years below the national average of 45.7. Among its neighborhoods, Songjeong-dong is youngest at 36.5 and Gadae-dong oldest at 63.4.
It fell 2.3% over 4 years, from 218,489 in 2022 to 213,391 in September 2026.
As of August 2026, the most people moved in from Jung-gu (173) and the most moved out to Nam-gu (230). Outflows exceeded inflows in every one of the past 12 months, for a net loss of 2,918.
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 🌐