Arkadelphia is a city in Clark County, Arkansas, United States. As of the 2020 census, the population was 10,380. The city is the county seat of Clark County. It is situated at the foothills of the Ouachita Mountains. Two universities, Henderson State University and Ouachita Baptist University, are located here. Arkadelphia was incorporated in 1857.
Zip Codes in Arkadelphia, AR that we also serve: 71923 71999 71998