Browse Water Systems
10,042 public water systems in WA.
Public Water Systems Database
Browse 10,042 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 |
|---|---|---|---|---|
| BOTHELL WATER CITY OF | WA5307900 | Washington | Community | 33,643 |
| North City Water District | WA5339600 | Washington | Community | 32,847 |
| MOSES LAKE CITY OF | WA5356300 | Washington | Community | 32,428 |
| SPANAWAY WATER COMPANY | WA5382850 | Washington | Community | 31,908 |
| CAMAS MUNICIPAL WATER SEWER SYSTEM | WA5310800 | Washington | Community | 31,794 |
| Mukilteo Water & Wastewater Distr | WA5357550 | Washington | Community | 31,437 |
| PULLMAN WATER DEPARTMENT CITY OF | WA5369880 | Washington | Community | 31,315 |
| MERCER ISLAND CITY OF | WA5353640 | Washington | Community | 31,057 |
| BATTLE GROUND WATER DEPT CITY OF | WA5304700 | Washington | Community | 30,237 |
| QUIL CEDA VILLAGE | 105300116 | Washington | Non-Transient Non-Community | 30,000 |
| PARKLAND LIGHT & WATER COMPANY | WA5366200 | Washington | Community | 29,595 |
| FIFE DEPT OF PUBLIC WORKS | WA5325050 | Washington | Community | 29,091 |
| West Sound Utility District #1 | WA5302600 | Washington | Community | 28,930 |
| CEDAR RIVER WATER & SEWER DISTRICT | WA5341800 | Washington | Community | 28,671 |
| CENTRALIA PUBLIC WORKS - WATER | WA5312200 | Washington | Community | 28,164 |
| PORT ANGELES CITY OF | WA5368550 | Washington | Community | 28,067 |
| WHITWORTH WATER DISTRICT 2 | WA5396601 | Washington | Community | 26,883 |
| EAST WENATCHEE WATER DISTRICT | WA5321800 | Washington | Community | 26,519 |
| MOUNTLAKE TERRACE CITY OF | WA5357250 | Washington | Community | 26,402 |
| GORGE AMPHITHEATRE | WA5362514 | Washington | Transient Non-Community | 25,119 |
| CROSS VALLEY WATER DISTRICT | WA5316270 | Washington | Community | 24,695 |
| VERA WATER & POWER | WA5391450 | Washington | Community | 24,692 |
| NORTH PERRY AVE WATER DISTRICT | WA5360950 | Washington | Community | 24,402 |
| Lake Meridian Water District | WA5341900 | Washington | Community | 24,231 |
| OAK HARBOR CITY OF | WA5362650 | Washington | Community | 23,767 |
| MONROE WATER SYSTEM | WA5355820 | Washington | Community | 23,467 |
| ENUMCLAW WATER DEPARTMENT | WA5323600 | Washington | Community | 23,276 |
| ANACORTES CITY OF | WA5302200 | Washington | Community | 22,995 |
| ABERDEEN CITY OF | WA5300050 | Washington | Community | 22,867 |
| LOGE CAMP MT. SHASTA | CA4700563 | Washington | Transient Non-Community | 21,938 |
| PUD #1 OF ASOTIN COUNTY | WA5393343 | Washington | Community | 21,930 |
| KING COUNTY WATER DISTRICT #125 | WA5341998 | Washington | Community | 21,904 |
| WASHINGTON STATE UNIVERSITY | WA5393200 | Washington | Community | 21,506 |
| WASHOUGAL CITY OF | WA5393400 | Washington | Community | 21,441 |
| WEST RICHLAND CITY OF | WA5394900 | Washington | Community | 21,231 |
| RIDGEFIELD PUBLIC WORKS | WA5372400 | Washington | Community | 21,225 |
| CONSOLIDATED IRRIG DIST 19 SYSTEM 2 | WA5310221 | Washington | Community | 21,220 |
| ELLENSBURG WATER DEPT | WA5322950 | Washington | Community | 20,900 |
| ARLINGTON CITY OF | WA5302950 | Washington | Community | 20,418 |
| KING COUNTY WATER DISTRICT NO 90 | WA5341150 | Washington | Community | 20,100 |
| FERNDALE | WA5324850 | Washington | Community | 19,305 |
| SPO CO WATER DIST 3 SYS 1 | WA5393351 | Washington | Community | 18,983 |
| MODERN ELECTRIC WATER CO | WA5355600 | Washington | Community | 18,487 |
| POULSBO CITY OF | WA5369150 | Washington | Community | 18,400 |
| ROSE HILL WATER DISTRICT | WA5340850 | Washington | Community | 18,300 |
| LYNDEN WATER DEPARTMENT | WA5349150 | Washington | Community | 17,969 |
| SUNNYSIDE CITY OF | WA5385400 | Washington | Community | 17,194 |
| EASTERN WASHINGTON UNIVERSITY | WA5321900 | Washington | Community | 17,108 |
| PORT TOWNSEND CITY OF | WA5369000 | Washington | Community | 17,053 |
| CHENEY CITY OF | WA5312400 | Washington | Community | 16,954 |