Skip to content
AquaCensus

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
Active public water systems in Lonoke County, Arkansas
#Water systemCountyPopulation servedTypeSource
1Grand Prairie Bayou 2 PwaLonoke13,519CommunityPurchased surface water
2Ward WaterworksLonoke12,579CommunityPurchased surface water
3Lonoke WaterworksLonoke4,277CommunityGroundwater
4Des Arc WaterworksLonoke + 1 more4,245CommunityGroundwater
5Austin WaterworksLonoke3,600CommunityPurchased surface water
6Furlow Public Water AuthorityLonoke3,073CommunityPurchased surface water
7England WaterworksLonoke2,477CommunityGroundwater
8Carlisle WaterworksLonoke2,300CommunityGroundwater
9Ammunition Operations, LLCLonoke650Non-transient non-communityGroundwater
10Keo Water WorksLonoke388CommunityGroundwater
11Coy WaterworksLonoke218CommunityPurchased 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.

Multi-county water systems that also serve Lonoke County, Arkansas
Water systemCountyPopulation servedTypeSource
Cabot WaterworksPulaski + 1 more30,063CommunityPurchased 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

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).