Benton County, Arkansas — public water systems

35 active public water systems serve Benton County, reporting 277K people served.

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

Active systems

Population served

277K

Community systems

Groundwater share

31.4%

Water systems in Benton County

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Active public water systems in Benton County, Arkansas
#	Water system	County	Population served	Type	Source
1	Rogers Water Utilities	Benton	81,443	Community	Purchased surface water
2	Bentonville Water Utilities	Benton	51,250	Community	Purchased surface water
3	Bella Vista Poa	Benton	39,419	Community	Purchased surface water
4	Centerton Waterworks	Benton	27,243	Community	Purchased surface water
5	Siloam Springs Waterworks	Benton	21,430	Community	Surface water
6	Pea Ridge Waterworks	Benton	12,795	Community	Purchased surface water
7	Gentry Waterworks	Benton	7,910	Community	Purchased surface water
8	Benton County Water District #1	Benton	6,730	Community	Purchased surface water
9	Cave Springs Waterworks	Benton	5,365	Community	Purchased surface water
10	Gravette Waterworks	Benton	4,900	Community	Purchased surface water
11	Highfill Water Department	Benton	3,970	Community	Purchased surface water
12	Nw Arkansas Regional Airport	Benton	3,538	Non-transient non-community	Purchased surface water
13	Decatur Waterworks	Benton	2,468	Community	Purchased surface water
14	Gateway Public Water Authority	Benton	2,325	Community	Purchased surface water
15	Benton County Water Authority5	Benton	1,813	Community	Purchased surface water
16	Lost Bridge Vill Wat-Sew Dists	Benton	1,010	Community	Purchased surface water
17	Garfield Waterworks	Benton	758	Community	Purchased surface water
18	Camp War Eagle	Benton	700	Transient non-community	Groundwater
19	Benton County Water Authority4	Benton	673	Community	Purchased surface water
20	Sulphur Springs Waterworks	Benton	580	Community	Groundwater
21	Oakhills Surb Improvment Dist	Benton	133	Community	Purchased surface water
22	Leisure Hills Mobile Home Park	Benton	113	Community	Groundwater
23	Old Bella Vista Poa	Benton	83	Community	Purchased surface water
24	Pine Top Water Facilities Board	Benton	55	Community	Purchased surface water
25	Beaver Water District	Benton	54	Community	Surface water
26	Mountain Development	Benton	50	Non-transient non-community	Groundwater
27	Ventris Trails End Resort	Benton	50	Transient non-community	Groundwater
28	Beaver Lake Glamping & Rv Resort	Benton	25	Transient non-community	Groundwater
29	Lost Bridge Marina	Benton	25	Transient non-community	Groundwater
30	Culligan of Northwest Arkansas	Benton	25	Transient non-community	Purchased surface water
31	Uscoe Bwp17 Lost Bridge	Benton	25	Transient non-community	Groundwater
32	Uscoe Bwp33 Lost Bridge	Benton	25	Transient non-community	Groundwater
33	Uscoe Bwp 18 Lost Bridge South	Benton	25	Transient non-community	Groundwater
34	The Inn at Lost Bridge	Benton	25	Transient non-community	Groundwater under influence of surface water
35	Madison Co Regional Water	Benton + 2 more	4	Community	Surface water

Also serving Benton County

These systems serve several counties, including Benton County. EPA lists another county first for them, so they are not included in the counts above.

Multi-county water systems that also serve Benton County, Arkansas
Water system	County	Population served	Type	Source
Springdale Water Utilities	Washington + 1 more	98,948	Community	Purchased surface water
Washington Water Authority Wwa	Washington + 1 more	20,140	Community	Purchased surface water
Madison Co Water Facilities Bd	Washington + 2 more	11,435	Community	Purchased surface water
Benton-Washington Regional Pwa	Washington + 1 more	30	Community	Surface water