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ZIP Code 93721 Water Quality
California · 10,090 people served · 20 water systems
F
FailingZIP code 93721 is in California and is a small city from a drinking-water-service perspective, with 10,090 people served by 20 EPA-registered public water systems. It corresponds to FRESNO.
Within ZIP code 93721, the EPA Safe Drinking Water Information System (SDWIS) records 44 health-based violations during the past five years across 20 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 93721
Water Systems Serving 93721
FCSA 47 - QUAIL LAKE ESTATES
PWSID: CA1010055
1,988 served
FCSA 34 - MILLERTON NEW TOWN
PWSID: CA1000484
1,117 served
FCSA 39 - A AND B
PWSID: CA1000471
395 served
FCSA 49 - FIVE POINTS
PWSID: CA1000546
440 served
FCSA 44D - MONTE VERDI
PWSID: CA1000550
350 served
FCSA 43 - RAISIN CITY
PWSID: CA1000551
182 served
FCSA 10A - MANSIONETTE ESTATES
PWSID: CA1000554
81 served
FCSA 44C - RIVERVIEW ESTATES
PWSID: CA1000555
34 served
FCWWD 41/SHAVER LAKE
PWSID: CA1010017
2,722 served
JUVENILE JUSTICE CAMPUS
PWSID: CA1000570
565 served
FCSA 34B - VENTANA HILLS
PWSID: CA1000574
48 served
FCSA 30 - EL PORVENIR
PWSID: CA1000019
241 served
FCSA 05 - WILDWOOD ISLAND
PWSID: CA1000021
417 served
FCSA 14 - BELMONT MANOR
PWSID: CA1000023
115 served
FCSA 10 - CUMORAH KNOLLS
PWSID: CA1000039
132 served
FCWWD 37/MILE HIGH
PWSID: CA1000040
129 served
FCWWD 38/SKY HARBOUR
PWSID: CA1000041
185 served
FCWWD 40 - SHAVER SPRINGS
PWSID: CA1000042
196 served
FCWWD 42/ALLUVIAL & FANCHER
PWSID: CA1000078
291 served
FCSA 32 - CANTUA CREEK
PWSID: CA1000359
462 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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