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ZIP Code 91750 Water Quality
California · 31,818 people served · 8 water systems
B
GoodZIP code 91750 is in California and is a small city from a drinking-water-service perspective, with 31,818 people served by 8 EPA-registered public water systems. It corresponds to LA VERNE.
Within ZIP code 91750, the EPA Safe Drinking Water Information System (SDWIS) records 1 health-based violation during the past five years across 8 water systems serving this postal area. The grade of B 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 91750
Water Systems Serving 91750
LA VERNE, CITY WD
PWSID: CA1910062
31,334 served
METROPOLITAN WATER DIST. OF SO. CAL.
PWSID: CA1910087
0 served
MWD OF SO CAL IRON MOUNTAIN
PWSID: CA3600382
36 served
MWD OF SO CAL GENE PLANT
PWSID: CA3600383
135 served
MWD - EAGLE MOUNTAIN
PWSID: CA3301226
15 served
DESERT VIEW TRAILER PARK
PWSID: CA3301209
60 served
LINDEN MANOR MHP
PWSID: IL1670180
84 served
MILTON MANOR MHP
PWSID: IL1670170
154 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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