Browse Water Systems
22,144 public water systems in WI.
Public Water Systems Database
Browse 22,144 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 |
|---|---|---|---|---|
| MILWAUKEE WATERWORKS | WI2410100 | Wisconsin | Community | 626,000 |
| GREEN BAY WATERWORKS | WI4050356 | Wisconsin | Community | 107,369 |
| RACINE WATERWORKS | WI2520062 | Wisconsin | Community | 105,100 |
| KENOSHA WATER UTILITY | WI2300046 | Wisconsin | Community | 99,218 |
| APPLETON WATERWORKS | WI4450333 | Wisconsin | Community | 74,511 |
| WEST ALLIS WATERWORKS | WI2410595 | Wisconsin | Community | 63,240 |
| OSHKOSH WATERWORKS | WI4710457 | Wisconsin | Community | 63,000 |
| MAYFAIR MALL | WI2410926 | Wisconsin | Non-Transient Non-Community | 50,500 |
| SHEBOYGAN WATER UTILITIES | WI4600354 | Wisconsin | Community | 49,931 |
| WAUWATOSA WATERWORKS | WI2410596 | Wisconsin | Community | 49,064 |
| NORTH SHORE WATER COMMISSION | WI2413515 | Wisconsin | Community | 35,598 |
| MANITOWOC WATERWORKS | WI4360364 | Wisconsin | Community | 34,500 |
| OAK CREEK WATERWORKS | WI2410172 | Wisconsin | Community | 32,104 |
| NEENAH WATERWORKS | WI4710348 | Wisconsin | Community | 27,506 |
| STEVENS POINT WATERWORKS | WI7500141 | Wisconsin | Community | 26,717 |
| SUPERIOR WATER LIGHT & POWER COMPANY | WI8160147 | Wisconsin | Community | 26,084 |
| DE PERE WATERWORKS SA 1 | WI4050453 | Wisconsin | Community | 25,660 |
| FITCHBURG UTILITY DIST 1 | WI1130231 | Wisconsin | Community | 24,500 |
| WATERTOWN WATERWORKS | WI1280044 | Wisconsin | Community | 23,945 |
| MENOMONEE FALLS WW - SURFACE WATER | WI2680082 | Wisconsin | Community | 23,867 |
| FRANKLIN WATER UTILITY | WI2410563 | Wisconsin | Community | 22,500 |
| CALEDONIA WATER UTILITY - VILLAGE OF | WI2520184 | Wisconsin | Community | 21,819 |
| GRAND CHUTE TN SAN DIST 1 | WI4450429 | Wisconsin | Community | 21,583 |
| SOUTH MILWAUKEE WATERWORKS | WI2410144 | Wisconsin | Community | 21,340 |
| HOWARD WATERWORKS | WI4050468 | Wisconsin | Community | 21,133 |
| GERMANTOWN WATER UTILITY | WI2670105 | Wisconsin | Community | 20,027 |
| MARSHFIELD UTILITIES | WI7720165 | Wisconsin | Community | 18,815 |
| CUDAHY WATERWORKS | WI2410169 | Wisconsin | Community | 18,659 |
| ONALASKA WATERWORKS | WI6320327 | Wisconsin | Community | 18,000 |
| ASHWAUBENON WATERWORKS | WI4050456 | Wisconsin | Community | 17,730 |
| BELLEVUE WATERWORKS | WI4050459 | Wisconsin | Community | 16,715 |
| BEAVER DAM WATER UTILITY | WI1140059 | Wisconsin | Community | 16,200 |
| RIVER FALLS WATERWORKS | WI6480246 | Wisconsin | Community | 16,000 |
| HARTFORD WATERWORKS | WI2670110 | Wisconsin | Community | 15,805 |
| MENASHA ELEC & WATER UTIL | WI4710334 | Wisconsin | Community | 15,144 |
| GREENDALE WATERWORKS | WI2410571 | Wisconsin | Community | 14,393 |
| WHITEFISH BAY WATERWORKS | WI2410597 | Wisconsin | Community | 14,272 |
| VERONA WATERWORKS | WI1130259 | Wisconsin | Community | 14,030 |
| FOX CROSSING UTILITIES WEST | WI4710358 | Wisconsin | Community | 14,000 |
| WHITEWATER WATERWORKS | WI2650056 | Wisconsin | Community | 14,000 |
| ALLOUEZ WATERWORKS | WI4050455 | Wisconsin | Community | 13,923 |
| SHOREWOOD WATERWORKS | WI2410607 | Wisconsin | Community | 13,535 |
| PLOVER WATERWORKS | WI7500726 | Wisconsin | Community | 13,486 |
| STOUGHTON WATERWORKS | WI1130078 | Wisconsin | Community | 13,078 |
| DARBOY SANITARY DIST 1 | WI4450117 | Wisconsin | Community | 13,024 |
| HO-CHUNK CASINO & BINGO | 055195000 | Wisconsin | Non-Transient Non-Community | 13,000 |
| GLENDALE WATERWORKS | WI2410168 | Wisconsin | Community | 12,883 |
| PORT WASHINGTON WATERWORKS | WI2460054 | Wisconsin | Community | 12,853 |
| BROWN DEER WATERWORKS | WI2410556 | Wisconsin | Community | 12,741 |
| BARABOO WATERWORKS | WI1570085 | Wisconsin | Community | 12,703 |