Browse Water Systems
5,286 public water systems in IA.
Public Water Systems Database
Browse 5,286 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.
| System Name | PWSID | State | Type | Population Served |
|---|---|---|---|---|
| DES MOINES WATER WORKS | IA7727031 | Iowa | Community | 246,055 |
| IOWA-AMERICAN WTR CO-DAVENPORT | IA8222001 | Iowa | Community | 147,720 |
| CEDAR RAPIDS WATER DEPARTMENT | IA5715093 | Iowa | Community | 141,831 |
| GULL POINT STATE PARK | IA3050928 | Iowa | Transient Non-Community | 105,965 |
| SIOUX CITY WATER SUPPLY | IA9778054 | Iowa | Community | 85,791 |
| ANKENY, CITY OF | IA7709053 | Iowa | Community | 76,207 |
| WATERLOO WATER WORKS | IA0790074 | Iowa | Community | 69,504 |
| IOWA CITY WATER DEPARTMENT | IA5225079 | Iowa | Community | 68,753 |
| WEST DES MOINES WATER WORKS | IA7785007 | Iowa | Community | 68,723 |
| COUNCIL BLUFFS WATER WORKS | IA7820080 | Iowa | Community | 64,447 |
| DUBUQUE WATER WORKS | IA3126052 | Iowa | Community | 59,667 |
| AMES WATER TREATMENT PLANT | IA8503039 | Iowa | Community | 55,177 |
| URBANDALE WATER UTILITY | IA7780042 | Iowa | Community | 45,605 |
| ISU | IA8503528 | Iowa | Community | 42,000 |
| MARION MUNICIPAL WATER DEPT | IA5751035 | Iowa | Community | 41,623 |
| CEDAR FALLS MUNICIPAL WATER UTILITIES | IA0709084 | Iowa | Community | 40,713 |
| LAZY LAGOON RESORT | IA3070467 | Iowa | Transient Non-Community | 40,000 |
| IA REGIONAL UTILITIES ASSOC (WAVERLY) | IA0990701 | Iowa | Community | 37,820 |
| BETTENDORF WATER SUPPLY | IA8209007 | Iowa | Community | 33,215 |
| RATHBUN REGIONAL WATER ASSN (RATHBUN) | IA0400900 | Iowa | Community | 33,000 |
| WAUKEE WATER SUPPLY | IA2573080 | Iowa | Community | 31,823 |
| CENTRAL IA WATER ASSN (NEWTON) | IA5059704 | Iowa | Community | 28,250 |
| MARSHALLTOWN WATER WORKS | IA6469042 | Iowa | Community | 27,591 |
| MASON CITY WATER DEPARTMENT | IA1750048 | Iowa | Community | 27,338 |
| UNIVERSITY WATER SYSTEM | IA5225101 | Iowa | Community | 26,684 |
| BURLINGTON MUNICIPAL WATERWORKS | IA2909053 | Iowa | Community | 26,015 |
| FORT DODGE WATER SUPPLY | IA9433050 | Iowa | Community | 25,874 |
| OTTUMWA WATER WORKS | IA9083012 | Iowa | Community | 25,529 |
| MUSCATINE POWER & WATER | IA7048001 | Iowa | Community | 25,516 |
| IOWA-AMERICAN WTR CO-CLINTON DISTRICT | IA2326048 | Iowa | Community | 24,769 |
| JOHNSTON MUNICIPAL WATER SUPPLY | IA7740011 | Iowa | Community | 24,064 |
| CORALVILLE MUNI WATER SYSTEM | IA5208071 | Iowa | Community | 22,318 |
| SIRWA #2 (CRESTON) | IA8080701 | Iowa | Community | 20,793 |
| NORTH LIBERTY WATER SUPPLY | IA5252072 | Iowa | Community | 20,491 |
| WARREN WATER DISTRICT | IA9133701 | Iowa | Community | 20,095 |
| ALTOONA WATER SUPPLY | IA7707030 | Iowa | Community | 19,565 |
| CLIVE WATER DEPARTMENT | IA7720051 | Iowa | Community | 19,010 |
| WAPELLO RURAL WATER ASSOC. | IA9000742 | Iowa | Community | 17,263 |
| NEWTON WATER SUPPLY | IA5059064 | Iowa | Community | 16,518 |
| INDIANOLA WATER SUPPLY | IA9133075 | Iowa | Community | 15,833 |
| GRIMES WATER SUPPLY | IA7736011 | Iowa | Community | 15,392 |
| CAMP FOSTER | IA3070462 | Iowa | Transient Non-Community | 15,000 |
| NORWALK WATER SUPPLY | IA9164078 | Iowa | Community | 14,334 |
| POWESHIEK WATER ASSOCIATION | IA8670701 | Iowa | Community | 13,920 |
| XENIA RWD (DES MOINES) | IA2573701 | Iowa | Community | 12,860 |
| OSKALOOSA MUNICIPAL WATER DEPT | IA6273005 | Iowa | Community | 12,808 |
| BOONE WATER WORKS | IA0819033 | Iowa | Community | 12,704 |
| RATHBUN REG WATER ASSN (FT MADISON) | IA0400901 | Iowa | Community | 11,840 |
| STORM LAKE WATER TREATMENT PLANT | IA1178097 | Iowa | Community | 11,431 |
| SPENCER MUNICIPAL WATER UTILITY | IA2171071 | Iowa | Community | 11,325 |