Mississippi drinking water record

Health-based drinking water violations in Mississippi, by year
15: 33331516: 67671617: 34341718: 42421819: 55551920: 64642021: 77772122: 67672223: 32322324: 2622622425: 222225

Busiest year: 2024 (262 violations). Counted by the year the violation period began. Source: EPA SDWIS.

  • Community water systems: 1,011 active systems serve about 3,205,105 people. 810 of them (80%) serve 3,300 people or fewer; 998 draw mainly on groundwater and 13 on surface water.
  • Health-based violations since 2015: 755, at 300 systems (30% of all systems). That share is 23rd of 50 states (1 = lowest).
  • Most common problems: contaminant averages over the limit (389); uncorrected Ground Water Rule deficiencies (105); water chemistry for corrosion control (15). Source: EPA SDWIS
  • Largest system: City of Jackson, about 189,673 people, with 37 health-based violations since 2015. Source: EPA SDWIS
  • Housing age: the median Mississippi home was built in 1986 (US 1980). Source: US Census Bureau, ACS 2020–2024 (table B25035)
  • Storm damage to water service: NOAA storm narratives mention water mains, boil water notices or lost water service in 1 episodes in Mississippi since 2015. Source: NOAA Storm Events Database
  • October 26, 2025, Franklin (flash flood): “Excessive runoff resulted in a water main break in the Roxie area.” Source: NOAA Storm Events Database
The largest water systems in Mississippi
SystemPeople servedMain sourceHealth violations since 2015
City of Jackson189,673Surface water37
City of Gulfport75,056Groundwater0
City of Southaven56,000Groundwater0
City of Olive Branch54,025Groundwater0
City of Hattiesburg43,449Groundwater0
City of Tupelo37,000Bought surface water0

Source: EPA SDWIS.

Share of water systems with a health-based violation since 2015: Mississippi and nearby states
  • Alabama17.4%
  • Tennessee22.9%
  • Mississippi29.7%
  • Arkansas41.6%
  • Louisiana63%

Mississippi is 3rd of 5 (1 = lowest share). Source: EPA SDWIS.

Checked September 2026.

Who to call in Mississippi, city by city

5 Mississippi cities on this site and the water utility for each. What to do while you wait is in our water service outage guide.

Frequently asked questions

Is there a water service outage in Mississippi right now?

Not on this site: no reports from Mississippi in the last 24 hours.

How many public water systems are in Mississippi?

EPA records list 1,011 active community water systems in Mississippi, serving about 3,205,105 people. 80% serve 3,300 people or fewer.

How common are drinking water violations in Mississippi?

Since 2015, 300 of 1,011 community water systems in Mississippi (30%) have had at least one health-based violation, 755 in total.

What is the largest water system in Mississippi?

City of Jackson, which EPA records list as serving about 189,673 people.

Report counts are user-submitted; other figures name their official source. How our data works

Cities in Mississippi with Water Service Outages Information

Biloxi

no reports in the last 24 hours · pop. 46,873
City of Biloxi Public Works

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Gulfport

no reports in the last 24 hours · pop. 72,394
City of Gulfport Public Works

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Hattiesburg

no reports in the last 24 hours · pop. 45,589
City of Hattiesburg Water & Sewer

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Jackson

no reports in the last 24 hours · pop. 153,701
JXN Water

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Southaven

no reports in the last 24 hours · pop. 54,997
City of Southaven Utilities

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