DeSoto County, Mississippi — public water systems
At a glance
22 active public water systems are filed under DeSoto County, Mississippi in EPA's SDWIS records, together reporting 202,543 people served. The largest is City of Southaven, which reports serving 56,000 people. 18 are community water systems serving people where they live; the other 4 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
22
Population served
202.5K
Community systems
18
Groundwater share
100%
How does DeSoto County compare with other Mississippi counties?
DeSoto County has the 9th-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 202,543 people served in total, the 2nd-largest county figure in the state and 6.3% of the statewide total. The average system here reports serving 9,207 people, about 3.3 times 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 DeSoto County's drinking water come from?
By primary water source, DeSoto County's active systems draw on groundwater (22, 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 Southaven, draws primarily on groundwater.
What kinds of water systems operate in DeSoto County?
DeSoto County's active systems break down as 18 community systems (82%) and 4 transient non-community systems (18%). 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 transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as public/private partnership (41%), local government (32%), private (18%) and federal government (4.5%).
Water systems in DeSoto County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | City of Southaven | DeSoto | 56,000 | Community | Groundwater |
| 2 | City of Olive Branch | DeSoto | 54,025 | Community | Groundwater |
| 3 | City of Hernando | DeSoto | 14,457 | Community | Groundwater |
| 4 | City of Horn Lake | DeSoto | 13,649 | Community | Groundwater |
| 5 | Horn Lake Water Association | DeSoto | 12,735 | Community | Groundwater |
| 6 | Lewisburg Water Association | DeSoto | 9,390 | Community | Groundwater |
| 7 | Walls Water Assn- Lake Forest | DeSoto | 9,298 | Community | Groundwater |
| 8 | City of Hernando-Jaybird | DeSoto | 6,750 | Community | Groundwater |
| 9 | Nesbit Water Association | DeSoto | 5,988 | Community | Groundwater |
| 10 | Eudora Utilities Association | DeSoto | 3,749 | Community | Groundwater |
| 11 | Walls Water Association | DeSoto | 2,999 | Community | Groundwater |
| 12 | Days Water Association | DeSoto | 2,825 | Community | Groundwater |
| 13 | Belmont Water Association | DeSoto | 2,719 | Community | Groundwater |
| 14 | City of Hernando - Laughter | DeSoto | 2,521 | Community | Groundwater |
| 15 | City of Horn Lake - Twin Lakes | DeSoto | 1,948 | Community | Groundwater |
| 16 | Lewisburg -Ingrams Mill North | DeSoto | 1,067 | Community | Groundwater |
| 17 | Country Haven Mobile Home Park | DeSoto | 829 | Community | Groundwater |
| 18 | City of Horn Lake - Holly Hills | DeSoto | 729 | Community | Groundwater |
| 19 | Dollar General #16430 (Cockrum) | DeSoto | 375 | Transient non-community | Groundwater |
| 20 | Hernando Point Recreation Area | DeSoto | 216 | Transient non-community | Groundwater |
| 21 | Arkabutla North Campground | DeSoto | 174 | Transient non-community | Groundwater |
| 22 | C-You | DeSoto | 100 | Transient non-community | Groundwater |
DeSoto County water systems: frequently asked questions
How many public water systems are in DeSoto County, Mississippi?
EPA's SDWIS records file 22 active public water systems under DeSoto County, Mississippi: 18 community systems (82%) and 4 transient non-community systems (18%).
Who supplies drinking water in DeSoto County, MS?
The largest community water systems filed under DeSoto County are City of Southaven (56,000 people served), City of Olive Branch (54,025 people served) and City of Hernando (14,457 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 DeSoto County's drinking water come from groundwater or surface water?
Of the 22 active public water systems in DeSoto County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, City of Southaven, uses groundwater.
Where can I find a water quality report for DeSoto 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. 18 community systems are filed under DeSoto 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 DeSoto 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
- Panola County· 28 systems
- Hinds County· 26 systems
- Lee County· 24 systems
- Oktibbeha County· 24 systems
- Jones County· 22 systems
- Lafayette County· 22 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 DeSoto County, Mississippi”, https://aquacensus.com/water-systems/mississippi/desoto (data as of October 1, 2026).