Lonoke County, Arkansas — public water systems
At a glance
12 active public water systems are filed under Lonoke County, Arkansas in EPA's SDWIS records, together reporting 47,326 people served. The largest is Grand Prairie Bayou 2 Pwa, which reports serving 13,519 people. 11 are community water systems serving people where they live; the other 1 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
12
Population served
47.3K
Community systems
11
Groundwater share
58.3%
How does Lonoke County compare with other Arkansas counties?
Lonoke County has the 24th-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 47,326 people served in total, the 15th-largest county figure in the state and 1.5% of the statewide total. The average system here reports serving 3,944 people, roughly in line with 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 Lonoke County's drinking water come from?
By primary water source, Lonoke County's active systems draw on groundwater (6, 50%), purchased surface water (4, 33%), purchased groundwater (1, 8.3%) and surface water (1, 8.3%). Overall, 58% rely mainly on groundwater (including purchased groundwater) and 42% on surface water, compared with 63% and 37% across Arkansas. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Grand Prairie Bayou 2 Pwa, draws primarily on purchased surface water.
What kinds of water systems operate in Lonoke County?
Lonoke County's active systems break down as 11 community systems (92%) and 1 non-transient non-community systems (8.3%). 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. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. EPA lists their owner types as local government (92%) and private (8.3%).
Water systems in Lonoke County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Grand Prairie Bayou 2 Pwa | Lonoke | 13,519 | Community | Purchased surface water |
| 2 | Ward Waterworks | Lonoke | 12,579 | Community | Purchased surface water |
| 3 | Lonoke Waterworks | Lonoke | 4,277 | Community | Groundwater |
| 4 | Des Arc Waterworks | Lonoke + 1 more | 4,245 | Community | Groundwater |
| 5 | Austin Waterworks | Lonoke | 3,600 | Community | Purchased surface water |
| 6 | Furlow Public Water Authority | Lonoke | 3,073 | Community | Purchased surface water |
| 7 | England Waterworks | Lonoke | 2,477 | Community | Groundwater |
| 8 | Carlisle Waterworks | Lonoke | 2,300 | Community | Groundwater |
| 9 | Ammunition Operations, LLC | Lonoke | 650 | Non-transient non-community | Groundwater |
| 10 | Keo Water Works | Lonoke | 388 | Community | Groundwater |
| 11 | Coy Waterworks | Lonoke | 218 | Community | Purchased groundwater |
Also serving Lonoke County
These systems serve several counties, including Lonoke County. EPA lists another county first for them, so they are not included in the counts above.
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Cabot Waterworks | Pulaski + 1 more | 30,063 | Community | Purchased surface water |
Lonoke County water systems: frequently asked questions
How many public water systems are in Lonoke County, Arkansas?
EPA's SDWIS records file 12 active public water systems under Lonoke County, Arkansas: 11 community systems (92%) and 1 non-transient non-community systems (8.3%). At least 1 more system is listed under another county but also serve Lonoke County.
Who supplies drinking water in Lonoke County, AR?
The largest community water systems filed under Lonoke County are Grand Prairie Bayou 2 Pwa (13,519 people served), Ward Waterworks (12,579 people served) and Lonoke Waterworks (4,277 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 Lonoke County's drinking water come from groundwater or surface water?
Of the 12 active public water systems in Lonoke County, 58% draw mainly on groundwater and 42% on surface water, counting purchased supplies. The largest system, Grand Prairie Bayou 2 Pwa, uses purchased surface water.
Where can I find a water quality report for Lonoke 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. 11 community systems are filed under Lonoke 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 Lonoke 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
- All Arkansas public water systems· 853 active
- Poinsett County· 12 systems
- Crittenden County· 12 systems
- Franklin County· 12 systems
- Jefferson County· 12 systems
- Montgomery County· 12 systems
- Sebastian County· 12 systems
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
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 Lonoke County, Arkansas”, https://aquacensus.com/water-systems/arkansas/lonoke (data as of October 1, 2026).