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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

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Active public water systems in DeSoto County, Mississippi
#Water systemCountyPopulation servedTypeSource
1City of SouthavenDeSoto56,000CommunityGroundwater
2City of Olive BranchDeSoto54,025CommunityGroundwater
3City of HernandoDeSoto14,457CommunityGroundwater
4City of Horn LakeDeSoto13,649CommunityGroundwater
5Horn Lake Water AssociationDeSoto12,735CommunityGroundwater
6Lewisburg Water AssociationDeSoto9,390CommunityGroundwater
7Walls Water Assn- Lake ForestDeSoto9,298CommunityGroundwater
8City of Hernando-JaybirdDeSoto6,750CommunityGroundwater
9Nesbit Water AssociationDeSoto5,988CommunityGroundwater
10Eudora Utilities AssociationDeSoto3,749CommunityGroundwater
11Walls Water AssociationDeSoto2,999CommunityGroundwater
12Days Water AssociationDeSoto2,825CommunityGroundwater
13Belmont Water AssociationDeSoto2,719CommunityGroundwater
14City of Hernando - LaughterDeSoto2,521CommunityGroundwater
15City of Horn Lake - Twin LakesDeSoto1,948CommunityGroundwater
16Lewisburg -Ingrams Mill NorthDeSoto1,067CommunityGroundwater
17Country Haven Mobile Home ParkDeSoto829CommunityGroundwater
18City of Horn Lake - Holly HillsDeSoto729CommunityGroundwater
19Dollar General #16430 (Cockrum)DeSoto375Transient non-communityGroundwater
20Hernando Point Recreation AreaDeSoto216Transient non-communityGroundwater
21Arkabutla North CampgroundDeSoto174Transient non-communityGroundwater
22C-YouDeSoto100Transient non-communityGroundwater

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

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).