STATE / TERRITORY LEDGER
Oregon drinking water system records
EPA’s September 2026 export lists 146 active community water systems in Oregon, with 12 current-violation flags and 2 serious-violator flags among covered systems serving at least 2,500 people.
Source: EPA SDWIS system-search export · Active community systems · Snapshot 13 Sep 2026
Systems146active CWS · pop. 2,500+
Population served3,504,644reported total; may overlap
Current violation flag8.2%12 systems
Serious-violator flag1.4%2 systems
01 / LARGEST SYSTEMS
Oregon community water systems
EPA’s covered Oregon records include 146 active community systems reporting a combined population-served total of 3,504,644, which may overlap.
Population served is a system-reported service figure. It is not a count of unique state residents.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Portland Water BureauOR4100657 | 666,200 | Surface water | Current health-based flag |
| Tualatin Valley Water DistrictOR4100665 | 224,600 | Surface water purchased | No current violation flagged |
| Salem Public WorksOR4100731 | 199,820 | Surface water | No current violation flagged |
| Eugene Water & Electric BoardOR4100287 | 176,000 | Surface water | No current violation flagged |
| Medford Water CommissionOR4100513 | 106,068 | Surface water | No current violation flagged |
| Hillsboro, City OfOR4101513 | 92,632 | Surface water purchased | No current violation flagged |
| Beaverton, City OfOR4100081 | 88,045 | Surface water purchased | No current violation flagged |
| Bend, City OfOR4100100 | 77,704 | Surface water | No current violation flagged |
| Gresham, City OfOR4100357 | 73,932 | Surface water purchased | No current violation flagged |
| Rockwood PudOR4100668 | 65,443 | Surface water purchased | No current violation flagged |
| Tigard, City OfOR4100878 | 62,500 | Surface water purchased | No current violation flagged |
| Springfield Utility BoardOR4100837 | 62,100 | Surface water | No current violation flagged |
| Corvallis, City OfOR4100225 | 61,468 | Surface water | No current violation flagged |
| Albany, City OfOR4100012 | 57,997 | Surface water | No current violation flagged |
| Sunrise Water AuthorityOR4100635 | 50,003 | Surface water purchased | No current violation flagged |
| Klamath Falls Water DeptOR4100443 | 40,475 | Ground water | No current violation flagged |
| Lake Oswego Municipal WaterOR4100457 | 40,000 | Surface water purchased | No current violation flagged |
| Keizer, City OfOR4100744 | 38,585 | Ground water | No current violation flagged |
| Redmond Water DepartmentOR4100693 | 37,566 | Ground water | No current violation flagged |
| Grants Pass, City OfOR4100342 | 37,138 | Surface water | No current violation flagged |
| Avion Wc - Greater AvionOR4100091 | 35,332 | Ground water | No current violation flagged |
| Mcminnville Water & LightOR4100497 | 34,515 | Surface water | No current violation flagged |
| Coos Bay North Bend Wtr BrdOR4100205 | 34,500 | Surface water | No current violation flagged |
| Oregon CityOR4101511 | 33,940 | Surface water purchased | No current violation flagged |
| Oak Lodge Water ServicesOR4101512 | 30,000 | Surface water purchased | No current violation flagged |
| Clackamas River WaterOR4100187 | 29,918 | Surface water | No current violation flagged |
| Woodburn, City OfOR4100959 | 29,455 | Ground water | Current monitoring/reporting flag |
| Roseburg, City OfOR4100720 | 28,800 | Surface water | No current violation flagged |
| Tualatin, City OfOR4100906 | 28,106 | Surface water purchased | No current violation flagged |
| West Linn, City OfOR4100944 | 28,000 | Surface water purchased | No current violation flagged |
| Forest Grove, City OfOR4100305 | 26,838 | Surface water | No current violation flagged |
| Wilsonville, City OfOR4100954 | 25,915 | Surface water | No current violation flagged |
| Newberg, City OfOR4100557 | 25,138 | Ground water | No current violation flagged |
| Ashland Water DepartmentOR4100047 | 20,946 | Surface water | No current violation flagged |
| Milwaukie, City OfOR4100528 | 20,946 | Ground water | No current violation flagged |
| Lincoln City, City OfOR4100483 | 20,830 | Surface water | No current violation flagged |
| Hermiston, City OfOR4100372 | 20,000 | Surface water | No current violation flagged |
| Clackamas River Water - ClairmontOR4100594 | 19,928 | Surface water purchased | No current violation flagged |
| Sherwood, City OfOR4100816 | 19,885 | Surface water purchased | No current violation flagged |
| Central Point, City OfOR4100178 | 19,785 | Surface water purchased | No current violation flagged |
| Lebanon, City OfOR4100473 | 18,945 | Surface water | No current violation flagged |
| Canby UtilityOR4100157 | 18,754 | Surface water | No current violation flagged |
| Dallas, City OfOR4100248 | 17,911 | Surface water | No current violation flagged |
| Pendleton, City OfOR4100613 | 16,996 | Surface water | No current violation flagged |
| Troutdale, City OfOR4100901 | 16,185 | Ground water | No current violation flagged |
| Cornelius, City OfOR4100218 | 14,490 | Surface water purchased | No current violation flagged |
| Ontario, City OfOR4100587 | 14,465 | Surface water | No current violation flagged |
| Suburban East Salem WdOR4100768 | 13,900 | Surface water purchased | No current violation flagged |
| La Grande, City OfOR4100453 | 13,460 | Ground water | No current violation flagged |
| St Helens, City OfOR4100724 | 13,410 | Groundwater under influence of surface water | No current violation flagged |
| The Dalles, City OfOR4100869 | 13,010 | Surface water | Current monitoring/reporting flag |
| Sandy, City OfOR4100789 | 12,991 | Surface water | Current health-based flag |
| Gladstone, City OfOR4100321 | 12,121 | Surface water purchased | No current violation flagged |
| Deschutes Valley Water DistOR4100501 | 11,700 | Ground water | No current violation flagged |
| Monmouth, City OfOR4100537 | 11,651 | Groundwater under influence of surface water | No current violation flagged |
| Prineville, City OfOR4100682 | 11,000 | Ground water | No current violation flagged |
| West Slope Water DistrictOR4100660 | 11,000 | Surface water purchased | No current violation flagged |
| Cottage Grove, City OfOR4100236 | 10,879 | Surface water | No current violation flagged |
| Silverton, City OfOR4100823 | 10,484 | Surface water | No current violation flagged |
| Newport, City OfOR4100566 | 10,439 | Surface water | No current violation flagged |
| Baker CityOR4100073 | 10,349 | Surface water | No current violation flagged |
| Sweet Home, City OfOR4100851 | 10,322 | Surface water | No current violation flagged |
| Independence Water SystemOR4100399 | 10,300 | Ground water | No current violation flagged |
| Molalla, City OfOR4100534 | 10,298 | Surface water | No current violation flagged |
| Astoria, City OfOR4100055 | 10,181 | Surface water | No current violation flagged |
| Fairview, City OfOR4100296 | 9,963 | Ground water | No current violation flagged |
| Florence, City OfOR4100299 | 9,561 | Ground water | No current violation flagged |
| Eagle Point, City OfOR4100267 | 9,554 | Surface water purchased | Current monitoring/reporting flag |
| Umpqua Basin Water AssocOR4100719 | 9,499 | Surface water | No current violation flagged |
| Warrenton, City OfOR4100932 | 9,100 | Surface water | No current violation flagged |
| Scappoose, City OfOR4100792 | 8,710 | Surface water | No current violation flagged |
| Hood River, City OfOR4100385 | 8,577 | Ground water | No current violation flagged |
| City Of StaytonOR4100843 | 8,400 | Surface water | No current violation flagged |
| Winston-Dillard Water DistrictOR4100957 | 8,300 | Surface water | No current violation flagged |
| Umatilla, City OfOR4100914 | 8,256 | Ground water | No current violation flagged |
| Sutherlin, City OfOR4100847 | 8,060 | Surface water | No current violation flagged |
| Seaside Water DepartmentOR4100799 | 7,482 | Surface water | Current monitoring/reporting flag |
| Milton-Freewater, City OfOR4100522 | 7,145 | Ground water | No current violation flagged |
| Brookings, City OfOR4100149 | 7,120 | Ground water | No current violation flagged |
| Green Area Water & Sanitary AuthorityOR4100717 | 7,000 | Surface water | No current violation flagged |
| Junction City Water UtilitiesOR4100418 | 7,000 | Ground water | No current violation flagged |
| Sheridan, City OfOR4100811 | 6,494 | Surface water | No current violation flagged |
| Roats Water SystemOR4100113 | 6,469 | Ground water | No current violation flagged |
| Rainbow Water DistrictOR4100839 | 6,300 | Groundwater under influence of surface water | No current violation flagged |
| Talent, City OfOR4100857 | 6,293 | Surface water purchased | No current violation flagged |
| Ice Fountain Water DistrictOR4100387 | 6,000 | Ground water | No current violation flagged |
| Seal Rock Water DistrictOR4100798 | 6,000 | Surface water | No current violation flagged |
| Crystal Springs Water DistrictOR4100386 | 5,973 | Ground water | No current violation flagged |
| Phoenix, City OfOR4100625 | 5,900 | Surface water purchased | No current violation flagged |
| Estacada, City OfOR4100279 | 5,750 | Surface water | No current violation flagged |
| Boardman, City OfOR4100130 | 5,749 | Ground water | No current violation flagged |
| Kernville-Gleneden-Linc Bch WdOR4100324 | 5,609 | Surface water | No current violation flagged |
| Creswell, City OfOR4100246 | 5,585 | Surface water | No current violation flagged |
| Tillamook Water Dept, City OfOR4100893 | 5,265 | Surface water | No current violation flagged |
| Veneta, City OfOR4100920 | 5,200 | Surface water purchased | No current violation flagged |
| Heceta Water Peoples Utility DistrictOR4100301 | 4,921 | Surface water | No current violation flagged |
| Reedsport, City OfOR4100699 | 4,836 | Surface water | Current monitoring/reporting flag |
| Philomath Public WorksOR4100624 | 4,670 | Surface water | No current violation flagged |
| Chenowith PudOR4100867 | 4,500 | Ground water | No current violation flagged |
| Raleigh Water DistrictOR4100667 | 4,500 | Surface water purchased | No current violation flagged |
| Lafayette, City OfOR4100452 | 4,423 | Surface water purchased | No current violation flagged |
| Wood Village, City OfOR4100904 | 4,388 | Ground water | No current violation flagged |
| Sunriver Water Llc/Sunriver UtilitiesOR4100846 | 4,300 | Ground water | No current violation flagged |
| Aumsville, City OfOR4100065 | 4,125 | Ground water | No current violation flagged |
| Crooked River Ranch Wtr CoOR4100862 | 4,000 | Ground water | No current violation flagged |
| Rivergrove Water DistrictOR4100461 | 4,000 | Ground water | No current violation flagged |
| Coquille, City OfOR4100213 | 3,953 | Surface water | No current violation flagged |
| Madras, City OfOR4100500 | 3,940 | Ground water | No current violation flagged |
| Warm Springs Water Treatment Plant104101247 | 3,800 | Surface water | Current serious-violator flag |
| Sisters, City OfOR4100826 | 3,778 | Ground water | No current violation flagged |
| Harrisburg, City OfOR4100366 | 3,684 | Ground water | Current serious-violator flag |
| North Plains Water DepartmentOR4100576 | 3,663 | Surface water purchased | No current violation flagged |
| Mount Angel, City OfOR4100544 | 3,650 | Ground water | No current violation flagged |
| Toledo Water UtilitiesOR4100899 | 3,645 | Surface water | No current violation flagged |
| Myrtle Creek, City OfOR4100550 | 3,501 | Surface water | No current violation flagged |
| Tri-City Jw&SaOR4100549 | 3,500 | Surface water | No current violation flagged |
| Hubbard, City OfOR4100389 | 3,478 | Ground water | No current violation flagged |
| Jefferson, City OfOR4100408 | 3,348 | Surface water | No current violation flagged |
| Nyssa, City OfOR4100579 | 3,285 | Ground water | No current violation flagged |
| Manzanita, City OfOR4100505 | 3,200 | Ground water purchased | No current violation flagged |
| Oakridge, City OfOR4100582 | 3,200 | Ground water | Other current violation flag |
| Agate Water SystemOR4101439 | 3,153 | Ground water | No current violation flagged |
| Harbor Water PudOR4100150 | 3,150 | Ground water | No current violation flagged |
| Sublimity, City OfOR4100844 | 3,140 | Ground water | No current violation flagged |
| Lake Grove Water DistrictOR4100460 | 3,100 | Surface water purchased | No current violation flagged |
| Jacksonville, City OfOR4100405 | 3,012 | Surface water purchased | No current violation flagged |
| Bandon, City OfOR4100074 | 3,000 | Surface water | No current violation flagged |
| Gold Beach, City OfOR4101059 | 3,000 | Groundwater under influence of surface water | No current violation flagged |
| Sw Lincoln Co Water PudOR4100925 | 3,000 | Surface water | No current violation flagged |
| Dundee, City OfOR4100262 | 2,960 | Ground water | No current violation flagged |
| Corbett Water DistrictOR4100359 | 2,954 | Surface water | No current violation flagged |
| Turner, City OfOR4100907 | 2,866 | Surface water purchased | No current violation flagged |
| La Pine, City OfOR4101496 | 2,807 | Ground water | Current monitoring/reporting flag |
| Luckiamute Domestic Water CoopOR4100538 | 2,738 | Surface water purchased | No current violation flagged |
| Burns Water DepartmentOR4100153 | 2,730 | Ground water | No current violation flagged |
| Myrtle Point, City OfOR4100551 | 2,656 | Surface water | No current violation flagged |
| Perrydale Domestic Wtr AssnOR4101149 | 2,655 | Ground water | No current violation flagged |
| City Of MillersburgOR4101533 | 2,615 | Surface water purchased | No current violation flagged |
| Youngs River Lewis & Clark WdOR4100062 | 2,580 | Surface water | No current violation flagged |
| Gervais Water DepartmentOR4100319 | 2,571 | Ground water | No current violation flagged |
| Dayton, City OfOR4100252 | 2,535 | Ground water | Current monitoring/reporting flag |
| Oregon Water Utilities - Cline Butte IncOR4101478 | 2,526 | Ground water | No current violation flagged |
| Boring Water District No 24OR4100135 | 2,500 | Ground water | No current violation flagged |
| Grand Ronde Community Wtr AssnOR4100338 | 2,500 | Ground water | No current violation flagged |
| La Water Co-OpOR4100313 | 2,500 | Surface water purchased | No current violation flagged |
| Mcnulty Water PudOR4100725 | 2,500 | Ground water | No current violation flagged |
02 / CITY REPORTS
Oregon city water-system reports
Oregon has 0 city reports meeting the publication threshold for covered systems or reported population served.
No qualifying city reports.
03 / COUNTY REPORTS
Oregon county water-system reports
Oregon has 28 county reports meeting the publication threshold for covered systems or reported population served.
Clackamas17 systemsMarion13 systemsWashington12 systemsLane10 systemsDeschutes9 systemsDouglas8 systemsJackson7 systemsMultnomah7 systemsLincoln6 systemsPolk6 systemsYamhill6 systemsLinn5 systemsClatsop4 systemsCoos4 systemsUmatilla4 systemsColumbia3 systemsCurry3 systemsHood River3 systemsJefferson3 systemsBenton2 systemsMalheur2 systemsTillamook2 systemsWasco2 systemsBaker1 systemsCrook1 systemsJosephine1 systemsKlamath1 systemsUnion1 systems