| Business | Phone |
| Clark County 911 Coordinator Arkadelphia 71923 | (870) 246-1433 |
| Clark County Agriculture 423 Clay St, Arkadelphia 71923 | (870) 246-2281 |
| Clark County Agriculture 501 Clay St, Arkadelphia 71923 | (870) 246-2281 |
| Clark County Circuit Clerks 401 Clay St, Arkadelphia 71923 | (870) 246-4281 |
| Clark County Collector's Ofc 401 Clay St, Arkadelphia 71923 | (870) 246-2211 |
| Clark County Election Comm 1418 Welch St, Arkadelphia 71923 | (870) 246-1416 |
| Clark County Election Comm Highway 67 S, Arkadelphia 71923 | (870) 246-1416 |
| Clark County Extension Council Clark County Fairgrounds, Arkadelphia 71923 | (870) 230-1109 |
| Clark County Juvenile Svc 501 Clay St, Arkadelphia 71923 | (870) 246-7071 |
| Clark County Road Shop 1501 Highway 67 S, Arkadelphia 71923 | (870) 246-7602 |
| Clark County Veteran's Svc 423 Clay St, Arkadelphia 71923 | (870) 246-7321 |
| Clark County Veteran's Svc 501 Clay St, Arkadelphia 71923 | (870) 246-7321 |