Washington County, Arkansas — public water systems

14 active public water systems serve Washington County, reporting 287.7K people served.

Dataset updated July 2026 . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

Population served

287.7K

Community systems

Groundwater share

7.1%

Water systems in Washington County

Active public water systems in Washington County, Arkansas
#	Water system	County	Population served	Type	Source
1	Fayetteville Waterworks	Washington	116,398	Community	Purchased surface water
2	Springdale Water Utilities	Washington	98,948	Community	Purchased surface water
3	Washington Water Authority Wwa	Washington	20,140	Community	Purchased surface water
4	Madison Co Water Facilities Bd	Washington	11,435	Community	Purchased surface water
5	Prairie Grove Waterworks	Washington	9,615	Community	Surface water
6	Tontitown Waterworks	Washington	7,355	Community	Purchased surface water
7	Lincoln Waterworks	Washington	6,690	Community	Purchased surface water
8	Mount Olive Water Association	Washington	6,308	Community	Purchased surface water
9	Elkins Waterworks	Washington	3,905	Community	Purchased surface water
10	West Fork Waterworks	Washington	3,178	Community	Purchased surface water
11	Veterans Health Care System of the Ozark	Washington	2,254	Non-transient non-community	Purchased surface water
12	Winslow Waterworks	Washington	1,433	Community	Purchased surface water
13	Brentwood Rest Area Wvm	Washington	30	Transient non-community	Purchased groundwater
14	Benton-Washington Regional Pwa	Washington	30	Community	Surface water