Ulju County

Ulju
울주군
Korean transcription(s)
 • Hanja蔚州郡
 • Revised RomanizationUlju-gun
 • McCune–ReischauerUlju-kun
Chonhwang Mountain
CountrySouth Korea
RegionYeongnam
Provincial levelUlsan
Administrative divisions6 eup, 6 myeon
Area
 • Total
754.94 km2 (291.48 sq mi)
Population
 (2025)
 • Total
219,174
 • Density288.5/km2 (747/sq mi)
 • Dialect
Gyeongsang
WebsiteDistrict Office

Ulju County (Korean울주군; RRUlju-gun) is a county occupying much of western Ulsan, South Korea.