PFAS Detections in Mississippi ZIP Codes — 2026

Out of 13 ZIP codes with data in Mississippi, these are the highest-ranked areas for pfas status. See also: National ZIP Codes with PFAS Detections in Water | All Mississippi Rankings

Statistic	Value
ZIP codes ranked	13
Highest value	0.1 ppt
Median value	0.0 ppt
State	Mississippi

Top 13 Worst ZIP Codes

Rank	ZIP Code	City	State	PFAS Status	Safety Score
1	38655	Oxford	MS	0.1 ppt	80/100
2	39120	Natchez	MS	0.0 ppt	81/100
3	38677	University	MS	0.0 ppt	66/100
4	38834	Corinth	MS	0.0 ppt	67/100
5	38635	Holly Springs	MS	0.0 ppt	93/100
6	39111	Magee	MS	0.0 ppt	63/100
7	39114	Mendenhall	MS	0.0 ppt	83/100
8	39532	Biloxi	MS	0.0 ppt	69/100
9	39534	Biloxi	MS	0.0 ppt	93/100
10	39401	Hattiesburg	MS	0.0 ppt	52/100
11	39465	Petal	MS	0.0 ppt	70/100
12	39476	Richton	MS	0.0 ppt	82/100
13	39601	Brookhaven	MS	0.0 ppt	84/100

Methodology

PFAS detection data comes from EPA UCMR5 monitoring, state-level testing programs, and Consumer Confidence Reports. ZIP codes are ranked by maximum PFAS concentration detected. The EPA has set MCLs of 4 ppt for PFOA and PFOS individually. PFAS are persistent chemicals that do not break down in the environment.

Data sources: EPA Safe Drinking Water Information System (SDWIS), FEMA National Flood Insurance Program, EPA radon zone maps, EIA electricity rates, and Consumer Confidence Reports. Last updated: 2026-06-04.

Frequently Asked Questions

What are PFAS?

PFAS (per- and polyfluoroalkyl substances) are synthetic chemicals used in non-stick coatings, firefighting foam, and food packaging since the 1940s. They are called "forever chemicals" because they do not break down naturally. PFAS are linked to cancer, liver damage, thyroid disease, and immune system suppression.

How can I remove PFAS from my water?

Reverse osmosis (RO) and granular activated carbon (GAC) filters are effective at removing most PFAS from drinking water. NSF/ANSI 53 or 58 certified filters are recommended. Boiling water does NOT remove PFAS.