| Business | Phone |
| Washington County Assessor 280 N College Ave # 250, Fayetteville 72701 | (479) 444-1500 |
| Washington County Comptroller 280 N College Ave # 530, Fayetteville 72701 | (479) 444-1709 |
| Washington County Treasurer 280 N College Ave # 116, Fayetteville 72701 | (479) 444-1717 |