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ZIP Code 93644 Water Quality
California · 1,582 people served · 10 water systems
F
FailingZIP code 93644 is in California and is a rural community from a drinking-water-service perspective, with 1,582 people served by 10 EPA-registered public water systems. It corresponds to OAKHURST.
Within ZIP code 93644, the EPA Safe Drinking Water Information System (SDWIS) records 46 health-based violations during the past five years across 10 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 93644
Water Systems Serving 93644
BASS LAKE HEIGHTS MUTUAL WATER
PWSID: CA2000502
250 served
BROADVIEW TERRACE MUTUAL WATER COMPANY
PWSID: CA2000521
498 served
WHISPERING PINES MHP
PWSID: CA2000605
38 served
CRASS MUTUAL WATER COMPANY
PWSID: CA2000530
80 served
YOSEMITE FORKS EST MUTUAL
PWSID: CA2000527
110 served
SUGAR PINE HOMEOWNERS ASSOC
PWSID: CA2000533
120 served
CEDAR VALLEY MUTUAL WATER CO
PWSID: CA2000538
137 served
PIKE RANCH MUTUAL WATER CO
PWSID: CA2000526
74 served
SKY ACRES MUTUAL WATER CORP
PWSID: CA2000524
175 served
ECCO
PWSID: CA2000688
100 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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