ZIP Code 95112 Water Quality

California · 2,072,724 people served · 52 water systems

Excellent

ZIP code 95112 is in California and is a major metropolitan area from a drinking-water-service perspective, with 2,072,724 people served by 52 EPA-registered public water systems. It corresponds to SAN JOSE.

Within ZIP code 95112, the EPA Safe Drinking Water Information System (SDWIS) records no health-based Maximum Contaminant Level (MCL) exceedances during the past five years across the 52 water systems serving this postal area.

Last updated: 2026-05-18 · Source: EPA SDWIS

ZIP Code Location

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Cities in ZIP 95112

SAN JOSE

Water Systems Serving 95112

CWS - UPPER BODFISH WATER SYSTEM

PWSID: CA1510026

307 served

BAKERSFIELD, CITY OF

PWSID: CA1510031

160,144 served

CWS - KERNVILLE

PWSID: CA1510033

2,572 served

CWS SOUTHLAKE SYSTEM

PWSID: CA1510039

1,112 served

CWS-ONYX WATER SYSTEM

PWSID: CA1510043

284 served

CWS - LAKELAND

PWSID: CA1510049

294 served

CWS - NORTH GARDEN

PWSID: CA1510055

22,762 served

CWS - LOWER BODFISH WATER SYSTEM

PWSID: CA1510056

736 served

LUCERNE WATER CO. - CAL WATER SERVICE

PWSID: CA1710005

2,129 served

CWS - BAKERSFIELD

PWSID: CA1510003

267,881 served

CWS - FREMONT VALLEY

PWSID: CA1500333

167 served

CWS-GRAND OAKS WATER SYSTEM

PWSID: CA1500374

122 served

CWS-SPLIT MOUNTAIN WATER SYSTEM

PWSID: CA1500407

226 served

CALIFORNIA WATER SERVICE CO.-TRAVIS AFB

PWSID: CA4810701

18,111 served

ARMSTRONG VALLEY-CAL WATER SERVICE (PUC)

PWSID: CA4910018

473 served

CALIFORNIA WATER SERVICE CO - WESTLAKE

PWSID: CA5610016

19,533 served

CAL-WATER SERVICE CO.-MARYSVILLE

PWSID: CA5810001

12,419 served

CWS - VISALIA

PWSID: CA5410016

148,496 served

CWS - MULLEN WATER COMPANY

PWSID: CA5400935

138 served

CWS - TULCO WATER COMPANY

PWSID: CA5410041

716 served

TESORO VIEJO MASTER MWC, INC.

PWSID: CA2010017

3,885 served

COAST SPRINGS - CAL. WATER SERVICE (PUC)

PWSID: CA2110007

388 served

CALIFORNIA WATER SERVICE CO-LAKE HUGHES

PWSID: CA1910242

929 served

CALIFORNIA WATER SERVICE CO-LEONA VALLEY

PWSID: CA1910243

878 served

CALIFORNIA WATER SERVICE CO. - PALOS VER

PWSID: CA1910104

71,452 served

CALIFORNIA WATER SERVICE CO. - HERM/REDO

PWSID: CA1910134

96,853 served

CALIFORNIA WATER SERVICE CO.-LANCASTER

PWSID: CA1910010

1,387 served

CALIFORNIA WATER SERVICE - BEAR GULCH

PWSID: CA4110006

61,431 served

CALIFORNIA WATER SERVICE - SAN CARLOS

PWSID: CA4110007

35,344 served

CALIFORNIA WATER SERVICE - SAN MATEO

PWSID: CA4110008

102,348 served

CALIFORNIA WATER SERVICE-S SAN FRANCISCO

PWSID: CA4110009

64,146 served

CALIFORNIA WATER SERVICE - STOCKTON

PWSID: CA3910001

176,266 served

CWSC LOS ALTOS SUBURBAN

PWSID: CA4310001

69,973 served

CALIFORNIA WATER SERVICE CO. - DIXON

PWSID: CA4810002

10,623 served

NOEL HEIGHTS-CAL WATER SERVICE (PUC)

PWSID: CA4900785

79 served

RANCHO DEL PARADISO-CAL WATER SVC (PUC)

PWSID: CA4900514

94 served

HAWKINS WATER CO-CAL WATER SERVICE (PUC)

PWSID: CA4900546

81 served

CAL-WATER SERVICE CO.-HAMILTON CITY

PWSID: CA1110002

1,799 served

CAL-WATER SERVICE CO.-WILLOWS

PWSID: CA1110003

7,240 served

CWS - SELMA

PWSID: CA1010024

26,517 served

CWSC KING CITY

PWSID: CA2710009

16,334 served

CWSC SALINAS

PWSID: CA2710010

123,679 served

CWSC SALINAS HILLS

PWSID: CA2710012

5,293 served

CWSC LAS LOMAS

PWSID: CA2710013

2,084 served

CWSC OAK HILLS

PWSID: CA2710019

3,161 served

COMMERCE-CITY, WATER DEPT.

PWSID: CA1910050

4,205 served

HAWTHORNE-CITY WATER DEPT.

PWSID: CA1910047

44,718 served

CALIFORNIA WATER SERVICE CO. - DOMINGUEZ

PWSID: CA1910033

143,996 served

CALIFORNIA WATER SERVICE CO. - ELA

PWSID: CA1910036

152,474 served

CAL-WATER SERVICE CO.-CHICO

PWSID: CA0410002

114,925 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.