Natrona County, Wyoming Water Systems

Natrona County, Wyoming

26 community water systems on record — 25 active, 1 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Wyoming’s official records. Always confirm current status with Wyoming before making decisions based on this information.

Community water systems in Natrona County, Wyoming

System name	City	Population served	Status
AIR BASE ACRES I&S DISTRICT	CASPER	236	Active
BAR NUNN, TOWN OF	BAR NUNN	4,000	Active
BROKEN WRENCH LLC	CASPER	30	Active
CASPER, CITY OF	CASPER	59,000	Active
CENTRAL WY REGIONAL WATER SYSTEM JPB	CASPER	25	Active
COUNTRYSIDE COURT	MILLS	125	Active
EDGERTON, TOWN OF	EDGERTON	195	Active
EVANSVILLE, TOWN OF	CASPER	2,728	Active
GREEN VALLEY MHP	FARMINGTON HILLS	265	Active
HIDDEN HILLS MHP	FARMINGTON HILLS	324	Active
LAKEVIEW I&S DISTRICT	MILLS	62	Active
MIDWEST, TOWN OF	MIDWEST	410	Active
MILE-HI I&S DISTRICT	CASPER	48	Active
MILLS, CITY OF	MILLS	4,050	Active
NATRONA COUNTY INT'L AIRPORT	CASPER	375	Active
PIONEER WATER & SEWER DISTRICT	CASPER	1,500	Active
PLEASANT VIEW WATER COMPANY	CASPER	130	Active
POISON SPIDER I&S DISTRICT	CASPER	200	Active
RIVERSIDE MOBILE HOME COURT	CASPER	330	Active
RIVERSIDE TRAILER COURT	CASPER	260	Inactive
SANDY LAKE ESTATES I&S DISTRICT	CASPER	150	Active
SOUTH RIVERSIDE ACRES WTR IMPR DIST	EVANSVILLE	125	Active
TERRACE I MHC	FARMINGTON HILLS	336	Active
TERRACE II MHC	FARMINGTON HILLS	320	Active
THIRTY-THREE MILE ROAD I&S DISTRICT	MILLS	100	Active
VISTA WEST WATER COMPANY	CASPER	1,600	Active