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ZIP Code 50158 Water Quality
Iowa · 34,979 people served · 14 water systems
F
FailingZIP code 50158 is in Iowa and is a small city from a drinking-water-service perspective, with 34,979 people served by 14 EPA-registered public water systems. It corresponds to MARSHALLTOWN.
Within ZIP code 50158, the EPA Safe Drinking Water Information System (SDWIS) records 34 health-based violations during the past five years across 14 water systems serving this postal area. The grade of F reflects the aggregate compliance pattern, not the current daily water quality.
Last updated: 2026-05-18 · Source: EPA SDWIS
ZIP Code Location
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Cities in ZIP 50158
Water Systems Serving 50158
ACKLEY MUNICIPAL WATER WORKS
PWSID: IA4201001
1,599 served
ANDREW WATER SUPPLY
PWSID: IA4903050
380 served
HOSPERS MUNICIPAL WATER DEPT
PWSID: IA8439058
718 served
SILVER CITY WATER SUPPLY
PWSID: IA6575052
245 served
MARSHALLTOWN ESTATES
PWSID: IA6400628
382 served
MONDAMIN WATER SUPPLY
PWSID: IA4349094
339 served
HASTINGS WATER SUPPLY
PWSID: IA6527038
152 served
CRESCENT WATER SUPPLY
PWSID: IA7822086
778 served
RANDOLPH WATER WORKS
PWSID: IA3649072
192 served
DUMONT WATER SUPPLY
PWSID: IA1240081
635 served
NEW HARTFORD WATER SUPPLY
PWSID: IA1271058
570 served
SWALEDALE WATER SUPPLY
PWSID: IA1778008
144 served
CLARKSVILLE WATER SUPPLY
PWSID: IA1228038
1,254 served
MARSHALLTOWN WATER WORKS
PWSID: IA6469042
27,591 served
About ZIP-code water data
Postal-code level water quality data is built up from the underlying water systems — multiple ZIPs may share a single utility, and a single ZIP can span multiple utilities. For property-level information, contact the specific utility serving your address. EPA data on this page was last refreshed on 2026-05-18.
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