Winston County, Mississippi — public water systems
At a glance
11 active public water systems are filed under Winston County, Mississippi in EPA's SDWIS records, together reporting 20,115 people served. The largest is City of Louisville, which reports serving 7,545 people. All 11 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
11
Population served
20.1K
Community systems
11
Groundwater share
100%
How does Winston County compare with other Mississippi counties?
Winston County has the 57th-most active public water systems among the 98 counties listed for active Mississippi systems in EPA records; among the 82 with 3 or more systems, the median has 12. Its systems report 20,115 people served in total, the 46th-largest county figure in the state and 0.6% of the statewide total. The average system here reports serving 1,829 people, about 35% below the Mississippi average of 2,832. 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 Winston County's drinking water come from?
By primary water source, Winston County's active systems draw on groundwater (11, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 99% and 1.2% across Mississippi. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, City of Louisville, draws primarily on groundwater.
What kinds of water systems operate in Winston County?
Winston County's active systems break down as 11 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 public/private partnership (73%) and local government (27%).
Water systems in Winston County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | City of Louisville | Winston | 7,545 | Community | Groundwater |
| 2 | Highpoint Water Association #1 | Winston | 1,940 | Community | Groundwater |
| 3 | Town of Noxapater | Winston | 1,713 | Community | Groundwater |
| 4 | Liberty-Plattsburg W/A #2 | Winston | 1,412 | Community | Groundwater |
| 5 | Bond Water Association #1 | Winston | 1,299 | Community | Groundwater |
| 6 | Ellison Ridge Water Assn | Winston | 1,287 | Community | Groundwater |
| 7 | Southeast Noxapater Water Assn | Winston | 1,188 | Community | Groundwater |
| 8 | Nanih-Waiya Water Association | Winston | 1,127 | Community | Groundwater |
| 9 | Pugh'S Mill Water Association | Winston | 924 | Community | Groundwater |
| 10 | Calvary Water Association | Winston | 900 | Community | Groundwater |
| 11 | City of Louisville - Northeast | Winston | 780 | Community | Groundwater |
Winston County water systems: frequently asked questions
How many public water systems are in Winston County, Mississippi?
EPA's SDWIS records file 11 active public water systems under Winston County, Mississippi: 11 community systems (100%).
Who supplies drinking water in Winston County, MS?
The largest community water systems filed under Winston County are City of Louisville (7,545 people served), Highpoint Water Association #1 (1,940 people served) and Town of Noxapater (1,713 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 Winston County's drinking water come from groundwater or surface water?
Of the 11 active public water systems in Winston County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, City of Louisville, uses groundwater.
Where can I find a water quality report for Winston 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 Winston 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 Winston 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 Mississippi water systems
- All Mississippi public water systems· 1,133 active
- Perry County· 11 systems
- Quitman County· 11 systems
- Stone County· 11 systems
- Webster County· 11 systems
- Amite County· 10 systems
- Covington County· 10 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 Winston County, Mississippi”, https://aquacensus.com/water-systems/mississippi/winston (data as of October 1, 2026).