Browse Water Systems
434,040 public water systems.
Public Water Systems Database
Browse 434,040 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 |
|---|---|---|---|---|
| OROSI PUBLIC UTILITY DISTRICT | CA5410008 | California | Community | 8,300 |
| CITY OF ORLAND | CA1110001 | California | Community | 8,298 |
| OLD KNOXVILLE HWY U.D. | TN0000530 | Tennessee | Community | 8,296 |
| HARRIS COUNTY MUD 154 | TX1011642 | Texas | Community | 8,289 |
| OAK GROVE PWS | MO1010589 | Missouri | Community | 8,289 |
| HCO MUD NO 145 | TX1010907 | Texas | Community | 8,283 |
| GRAND BLANC, CITY OF | MI0002740 | Michigan | Community | 8,276 |
| CRETE | IL1970300 | Illinois | Community | 8,275 |
| PINE CREEK ST PK | OK2004845 | Transient Non-Community | 8,272 | |
| TRUMBULL CO. - BAZETTA/CHAMPION | OH7804303 | Ohio | Community | 8,270 |
| WILLIAMSON COUNTY WSID 3 | TX2460152 | Texas | Community | 8,265 |
| SANTA FE UTILITY | TX1460204 | Texas | Community | 8,265 |
| PLEASANT HILL PWS | MO1010649 | Missouri | Community | 8,262 |
| MILTON WATER DEPT | VT0005079 | Vermont | Community | 8,260 |
| HARRIS COUNTY MUD 290 | TX1013294 | Texas | Community | 8,259 |
| CENTER LINE, CITY OF | MI0001290 | Michigan | Community | 8,257 |
| DALHART MUNICIPAL WATER SYSTEM | TX0560001 | Texas | Community | 8,256 |
| UMATILLA, CITY OF | OR4100914 | Oregon | Community | 8,256 |
| NORTH HOPKINS WSC | TX1120017 | Texas | Community | 8,253 |
| MASON, CITY OF | MI0004170 | Michigan | Community | 8,252 |
| LAFAYETTE COUNTY PWSD 1 | MO1024324 | Missouri | Community | 8,250 |
| FRANKLIN COUNTY PWSD 3 | MO6024213 | Missouri | Community | 8,250 |
| New Prague | MN1400013 | Minnesota | Community | 8,247 |
| MOUNTAIN REGIONAL WATER SSD | UTAH22137 | Utah | Community | 8,245 |
| CITY OF CORNING | CA5210001 | California | Community | 8,244 |
| LA PUENTE VALLEY CWD | CA1910060 | California | Community | 8,243 |
| ERIN WATER DEPARTMENT | TN0000230 | Tennessee | Community | 8,239 |
| MINOR HILL WATER U.D. | TN0000469 | Tennessee | Community | 8,237 |
| BELLEVUE CITY | OH3900011 | Ohio | Community | 8,236 |
| LOUISA WATER DEPARTMENT | KY0640257 | Kentucky | Community | 8,236 |
| MAMMOTH CWD | CA2610001 | California | Community | 8,234 |
| RHINELANDER WATER & WASTEWATER | WI7440126 | Wisconsin | Community | 8,234 |
| ORANGEFIELD WSC | TX1810186 | Texas | Community | 8,231 |
| SIOUX CENTER MUNICIPAL WATER DEPARTMENT | IA8486053 | Iowa | Community | 8,231 |
| MARIANNA, CITY OF | FL1320449 | Florida | Community | 8,227 |
| LEWISBURG BELLEVUE WATER SYSTEM | LA1097006 | Louisiana | Community | 8,226 |
| OCPU/MEADOWBROOK | FL3480818 | Florida | Community | 8,225 |
| WELLSBORO MUNICIPAL AUTHORITY | PA2590042 | Pennsylvania | Community | 8,225 |
| ALACHUA WTP | FL2010017 | Florida | Community | 8,220 |
| BUENA VISTA BETHEL SUD | TX0700037 | Texas | Community | 8,218 |
| GREENHILL WATER & FIRE PRO AUTHORITY | AL0001423 | Alabama | Community | 8,214 |
| FARMVILLE, TOWN OF | VA5147170 | Virginia | Community | 8,212 |
| DALLAS, TOWN OF | NC0136065 | North Carolina | Community | 8,212 |
| NARRAGANSETT WATER SYSTEM-POINT JUDITH | RI1858428 | Rhode Island | Community | 8,210 |
| SOUTHERN OUTER BANKS WTR SYST | NC6027001 | North Carolina | Community | 8,209 |
| WARRENTON PWS | MO6010834 | Missouri | Community | 8,208 |
| WEST HARRIS COUNTY MUD 11 | TX1012858 | Texas | Community | 8,205 |
| FARMDALE WATER DISTRICT | KY0370128 | Kentucky | Community | 8,203 |
| DEXTER PWS | MO4010216 | Missouri | Community | 8,200 |
| UPMC PRESBYTERIAN | PA5020808 | Pennsylvania | Non-Transient Non-Community | 8,200 |