Jangseong County

Jangseong
장성군
Korean transcription(s)
 • Hangul장성군
 • Hanja
 • Revised RomanizationJangseong-gun
 • McCune-ReischauerChangsŏng-gun
Location in South Korea
Country South Korea
RegionHonam
Administrative divisions1 eup, 10 myeon
Area
 • Total
518.65 km2 (200.25 sq mi)
Population
 (September 2024)
 • Total
42,129
 • Density108/km2 (280/sq mi)
 • Dialect
Jeolla

Jangseong County (Korean장성군; RRJangseong-gun) is a county in South Jeolla Province, South Korea.

Jangseong is in the southern region of the Korean peninsula and Gwangju and Naju is the nearest city from Jangseong. In South Jeolla, it near the northern border of its province, meeting North Jeolla.

The Republic of Korea Army Armor School is located in the county.