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ZIP Code 82604 Water Quality
Wyoming · 65,842 people served · 10 water systems
B
GoodZIP code 82604 is in Wyoming and is a mid-sized community from a drinking-water-service perspective, with 65,842 people served by 10 EPA-registered public water systems. It corresponds to CASPER.
Within ZIP code 82604, the EPA Safe Drinking Water Information System (SDWIS) records 1 health-based violation during the past five years across 10 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 82604
Water Systems Serving 82604
POISON SPIDER I&S DISTRICT
PWSID: WY5600073
200 served
CASPER, CITY OF
PWSID: WY5601415
59,000 served
MILE-HI I&S DISTRICT
PWSID: WY5601645
48 served
PIONEER WATER & SEWER DISTRICT
PWSID: WY5600828
1,500 served
CENTRAL WY REGIONAL WATER SYSTEM JPB
PWSID: WY5600009
25 served
PLEASANT VIEW WATER COMPANY
PWSID: WY5600082
130 served
NATRONA COUNTY INT'L AIRPORT
PWSID: WY5600079
375 served
VISTA WEST WATER COMPANY
PWSID: WY5600069
1,600 served
EVANSVILLE, TOWN OF
PWSID: WY5600018
2,728 served
AIR BASE ACRES I&S DISTRICT
PWSID: WY5600080
236 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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