About 71998 - Arkadelphia, Arkansas
The ZIP code 71998 of Arkadelphia falls within Arkansas, the United States - a sparsely populated area by population. It sits within Clark County.
Census data puts the population of this ZIP code at 669 residents. That's below the Arkansas average of about 5,082 people per ZIP code.
Population density runs around 3,476 people per sq. mile, making it a suburban area.
Nearby communities in Arkansas include Springdale, Conway, Fayetteville.