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ZIP Code 78028 Water Quality
Texas · 25,647 people served · 11 water systems
F
FailingZIP code 78028 is in Texas and is a small city from a drinking-water-service perspective, with 25,647 people served by 11 EPA-registered public water systems. It corresponds to KERRVILLE.
Within ZIP code 78028, the EPA Safe Drinking Water Information System (SDWIS) records 216 health-based violations during the past five years across 11 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 78028
Water Systems Serving 78028
ARIMAK WATER SUPPLY
PWSID: TX1330135
105 served
COUNTRY HILLS WATER
PWSID: TX1330102
90 served
SILVER HILLS PARK
PWSID: TX1330149
54 served
KERRVILLE VA HOSPITAL
PWSID: TX1330095
1,000 served
CITY OF KERRVILLE
PWSID: TX1330001
23,489 served
KERRVILLE RV PARK AND CABINS
PWSID: TX1330170
312 served
SADDLE MOUNTAIN WATER COOPERATIVE
PWSID: TX1330176
84 served
HILL COUNTRY RANCH ESTATES
PWSID: TX1330083
57 served
HEAVENS MOBILE HOME PARK
PWSID: TX1330121
36 served
WOODS WSC
PWSID: TX1330085
315 served
LAS COLINAS OF KERRVILLE
PWSID: TX1330166
105 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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