Sebastian County, Arkansas — public water systems

At a glance

12 active public water systems are filed under Sebastian County, Arkansas in EPA's SDWIS records, together reporting 112,887 people served. The largest is Fort Smith Water Utilities, which reports serving 86,209 people. All 12 are community water systems serving people where they live.

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

Active systems

Population served

112.9K

Community systems

Groundwater share

How does Sebastian County compare with other Arkansas counties?

Sebastian County has the 26th-most active public water systems among the 83 counties listed for active Arkansas systems in EPA records; among the 72 with 3 or more systems, the median has 10. Its systems report 112,887 people served in total, the 6th-largest county figure in the state and 3.7% of the statewide total. The average system here reports serving 9,407 people, about 162% above the Arkansas average of 3,592. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.

Where does Sebastian County's drinking water come from?

By primary water source, Sebastian County's active systems draw on purchased surface water (10, 83%) and surface water (2, 17%). Overall, none rely mainly on groundwater (including purchased groundwater) and all on surface water, compared with 63% and 37% across Arkansas. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, Fort Smith Water Utilities, draws primarily on surface water.

What kinds of water systems operate in Sebastian County?

Sebastian County's active systems break down as 12 community systems (100%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. EPA lists their owner types as local government (100%).

Water systems in Sebastian County

🔒 Create a free account to export CSV

Active public water systems in Sebastian County, Arkansas
#	Water system	County	Population served	Type	Source
1	Fort Smith Water Utilities	Sebastian	86,209	Community	Surface water
2	Greenwood Waterworks	Sebastian	9,905	Community	Surface water
3	Barling Waterworks	Sebastian	5,822	Community	Purchased surface water
4	Lavaca Waterworks	Sebastian	3,650	Community	Purchased surface water
5	Mansfield Waterworks	Sebastian	2,367	Community	Purchased surface water
6	Central City Water Department	Sebastian	1,227	Community	Purchased surface water
7	Hackett Waterworks	Sebastian	1,090	Community	Purchased surface water
8	Huntington Waterworks	Sebastian	782	Community	Purchased surface water
9	Hartford Waterworks	Sebastian	725	Community	Purchased surface water
10	Bonanza Waterworks	Sebastian	610	Community	Purchased surface water
11	Fcmtc Waterworks	Sebastian	500	Community	Purchased surface water

Also serving Sebastian County

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

Multi-county water systems that also serve Sebastian County, Arkansas
Water system	County	Population served	Type	Source
James Fork Regional Water District	Scott + 1 more	11,538	Community	Surface water
Milltown-Washburn Water Users	Logan + 2 more	4,325	Community	Purchased surface water
Riversouth Rural Water Dist	Logan + 2 more	4,275	Community	Purchased surface water

Sebastian County water systems: frequently asked questions

How many public water systems are in Sebastian County, Arkansas?

EPA's SDWIS records file 12 active public water systems under Sebastian County, Arkansas: 12 community systems (100%). At least 3 more systems are listed under another county but also serve Sebastian County.

Who supplies drinking water in Sebastian County, AR?

The largest community water systems filed under Sebastian County are Fort Smith Water Utilities (86,209 people served), Greenwood Waterworks (9,905 people served) and Barling Waterworks (5,822 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.

Does Sebastian County's drinking water come from groundwater or surface water?

Of the 12 active public water systems in Sebastian County, none draw mainly on groundwater and all on surface water, counting purchased supplies. The largest system, Fort Smith Water Utilities, uses surface water.

Where can I find a water quality report for Sebastian County?

Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 12 community systems are filed under Sebastian County, so the report to look for is the one from the system that supplies your address.

How can I check violations for a water system in Sebastian County?

Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.

More Arkansas water systems

About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Public water systems in Sebastian County, Arkansas”, https://aquacensus.com/water-systems/arkansas/sebastian (data as of October 1, 2026).