PFAS in Iowa Drinking Water — 10 ZIPs Tested

ZipCheckup tracks PFAS in Iowa drinking water: 10 ZIP codes with detected levels on record. 10 ZIP codes exceed the EPA limit (4 ppt (PFOA/PFOS)). PFAS carries a high health-risk designation.

PFAS Contamination in Iowa

ZipCheckup analyzed drinking water data across 1,058 ZIP codes in Iowa for pfas contamination. 10 ZIP codes have reported pfas detections, and 10 have EPA violations on record.

The violation rate for pfas in Iowa is 0.9% of all ZIP codes — lower than the national average.

EPA Standard for PFAS

The EPA maximum contaminant level (MCL) for pfas is 4 ppt (PFOA/PFOS), governed by the PFAS NPDWR (2024). Water systems that exceed this limit must take corrective action and notify consumers.

Worst ZIP Codes for PFAS in Iowa

These ZIP codes reported the highest pfas levels in Iowa based on CCR reports and EPA data:

Lowest PFAS Levels in Iowa

These ZIP codes had the lowest reported pfas detections in Iowa:

Health Effects of PFAS

PFAS (per- and polyfluoroalkyl substances) are linked to cancer (kidney, testicular), thyroid disease, immune system suppression, reproductive problems, and elevated cholesterol. These "forever chemicals" persist in the body for years.

How to Remove PFAS From Drinking Water

The most effective treatment for pfas removal is Reverse Osmosis or Granular Activated Carbon. Look for filters certified under NSF 53 / NSF 58 standards.

Check Your ZIP Code

Use the ZipCheckup water quality search to see pfas data for your specific water system in Iowa.