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ZIP Code 78133 Water Quality
Texas · 93,402 people served · 17 water systems
F
FailingZIP code 78133 is in Texas and is a mid-sized community from a drinking-water-service perspective, with 93,402 people served by 17 EPA-registered public water systems. It corresponds to CANYON LAKE.
Within ZIP code 78133, the EPA Safe Drinking Water Information System (SDWIS) records 64 health-based violations during the past five years across 17 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 78133
Water Systems Serving 78133
ROCKIN J RANCH SUBDIVISION
PWSID: TX0160030
1,839 served
WESTHAVEN WSC
PWSID: TX0460050
171 served
KINGS POINT WSC
PWSID: TX0460205
174 served
CANYON LAKE ESTATES WATER SUPPLY
PWSID: TX0460017
171 served
ROCKWALL RANCH SUBDIVISION
PWSID: TX0460250
1,773 served
KENDALL WEST UTILITY
PWSID: TX1300033
4,062 served
CLWSC CANYON LAKE SHORES
PWSID: TX0460019
44,196 served
ELM RIDGE WATER
PWSID: TX0460202
63 served
SJWTX TRIPLE PEAK PLANT
PWSID: TX0460172
32,973 served
SJWTX NORTH POINT SUBDIVISION
PWSID: TX0460235
93 served
TEXAS COUNTRY WATER
PWSID: TX0460223
321 served
RUST RANCH WATER SUPPLY
PWSID: TX0160019
564 served
DEER CREEK WATER
PWSID: TX2270049
2,757 served
SUMMIT RIDGE
PWSID: TX1630048
252 served
SJWTX GLENWOOD SUBDIVISION
PWSID: TX0460246
2,985 served
LATIGO RANCH SUBDIVISION
PWSID: TX0100096
126 served
BRIDLEGATE SUBDIVISION
PWSID: TX0100092
882 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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