Browse Water Systems
433,698 public water systems.
Public Water Systems Database
Browse 433,698 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 |
|---|---|---|---|---|
| CENTERVILLE OSTERVILLE MARSTONS MILLS WD | MA4020002 | Massachusetts | Community | 50,000 |
| WHITTIER-CITY, WATER DEPT. | CA1910173 | California | Community | 49,954 |
| GLENDORA-CITY, WATER DEPT. | CA1910044 | California | Community | 49,934 |
| NEWARK CITY PWS | OH4502314 | Ohio | Community | 49,934 |
| SHEBOYGAN WATER UTILITIES | WI4600354 | Wisconsin | Community | 49,931 |
| CITY OF BEDFORD | TX2200003 | Texas | Community | 49,900 |
| POWAY, CITY OF | CA3710015 | California | Community | 49,888 |
| LINCOLN COUNTY WTP | NC0155035 | North Carolina | Community | 49,693 |
| HOLLAND BOARD OF PUBLIC WORKS | MI0003190 | Michigan | Community | 49,687 |
| MISHAWAKA UTILITIES | IN5271009 | Indiana | Community | 49,675 |
| UC - DAVIS | CA5710009 | California | Community | 49,616 |
| P G AND ELMHURST 7 | PA2359009 | Pennsylvania | Community | 49,547 |
| PA AMERICAN ROYERSFORD | PA1150166 | Pennsylvania | Community | 49,508 |
| REDFORD TOWNSHIP | MI0005640 | Michigan | Community | 49,504 |
| BEAVER FALLS MUNI AUTH | PA5040012 | Pennsylvania | Community | 49,500 |
| GREATER JOHNSTOWN WA RIVERSIDE | PA4110034 | Pennsylvania | Community | 49,500 |
| PORT OF SEATTLE/SEATAC AIRPORT | WA5303182 | Washington | Non-Transient Non-Community | 49,483 |
| WEST BLOOMFIELD TOWNSHIP | MI0006975 | Michigan | Community | 49,479 |
| MONROE | MI0004450 | Michigan | Community | 49,467 |
| DOWNERS GROVE | IL0430300 | Illinois | Community | 49,425 |
| ISABELA | PR0002672 | PR | Community | 49,419 |
| GREEN MOUNTAIN WSD | CO0130321 | Colorado | Community | 49,400 |
| MYRTLE BEACH CITY OF (SC2610001) | SC2610001 | South Carolina | Community | 49,375 |
| ENID | OK2002412 | Oklahoma | Community | 49,347 |
| PACE WATER SYSTEM, INC. | FL1570671 | Florida | Community | 49,328 |
| FORT BEND COUNTY WCID 2 | TX0790004 | Texas | Community | 49,173 |
| CITY OF MARYVILLE W&S DEPT | TN0000438 | Tennessee | Community | 49,135 |
| WARREN CITY PWS | OH7803811 | Ohio | Community | 49,130 |
| LONGVIEW WATER DEPARTMENT | WA5348100 | Washington | Community | 49,111 |
| JACKSONVILLE CITY OF | NC0467010 | North Carolina | Community | 49,093 |
| EVERETT WATER DEPT. (MWRA) | MA3093000 | Massachusetts | Community | 49,075 |
| WAUWATOSA WATERWORKS | WI2410596 | Wisconsin | Community | 49,064 |
| CITY OF LAWRENCE UTILITIES | IN5249005 | Indiana | Community | 49,000 |
| BRISTOL COUNTY WATER AUTHORITY | RI1647515 | Rhode Island | Community | 49,000 |
| VALDOSTA | GA1850002 | Georgia | Community | 48,959 |
| PINELLAS PARK WATER DEPT | FL6521406 | Florida | Community | 48,939 |
| NORTHGLENN CITY OF | CO0101115 | Colorado | Community | 48,927 |
| LEVITTOWN WATER DISTRICT | NY2902832 | New York | Community | 48,900 |
| NAVAL STATION NORFOLK | VA3710050 | Virginia | Community | 48,826 |
| MINOT CITY OF | ND5100660 | North Dakota | Community | 48,743 |
| COOKEVILLE WATER DEPT | TN0000133 | Tennessee | Community | 48,711 |
| SOUTHWEST METROPOLITAN WSD | CO0103723 | Colorado | Community | 48,648 |
| AQUA PA WEST CHESTER | PA1150098 | Pennsylvania | Community | 48,600 |
| Commonwealth Utilities Corp (Saipan) | MP0000001 | MP | Community | 48,524 |
| CITY OF HUNTSVILLE | TX2360001 | Texas | Community | 48,522 |
| MONROEVILLE MUNICIPAL AUTH | PA5020027 | Pennsylvania | Community | 48,500 |
| CITY OF BREA | CA3010002 | California | Community | 48,479 |
| EAST BRUNSWICK WATER UTILITY | NJ1204001 | New Jersey | Community | 48,474 |
| NEWNAN UTILITIES | GA0770002 | Georgia | Community | 48,451 |
| SANFORD, CITY OF | NC0353010 | North Carolina | Community | 48,350 |