We found 227 public water systems in Warren county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Pa American Water Co Warren | Warren | 14,650 | 8 | 1 |
| Howland Springs Water Co Inc | Pennsylvania | 3,500 | 0 | 0 |
| YOUNGSVILLE MUN WATERWORKS | County of Warren | 2,007 | 0 | 109 |
| North Warren Muni Authority | County of Warren | 1,626 | 0 | 23 |
| Warren State Hospital | County of Warren | 1,300 | 0 | 28 |
| National Forge Company | County of Warren | 1,200 | 0 | 0 |
| Sw Warren Co Mun Auth | County of Warren | 1,200 | 0 | 0 |
| Chapman Park Picnic Area | County of Warren | 1,200 | 0 | 0 |
| Sheffield Twp Municipal Auth | County of Warren | 1,075 | 0 | 49 |
| Southwest Warren Co Mun Auth | County of Warren | 1,040 | 0 | 71 |
| Eisenhower Jr Sr High School | County of Warren | 1,006 | 0 | 38 |
| Warren Mall | County of Warren | 1,001 | 0 | 0 |
| Chapman Dam Concession | County of Warren | 1,000 | 0 | 0 |
| Aqua Pa Clarendon | County of Warren | 840 | 0 | 36 |
| Kwik Fill M381 | County of Warren | 800 | 0 | 3 |
| Irvine Distribution Center | County of Warren | 800 | 0 | 22 |
| White Way Drive In Theatre | County of Warren | 750 | 0 | 0 |
| Pine Grove Twp Water System | County of Warren | 640 | 0 | 88 |
| Ellwood National Forge Co | County of Warren | 513 | 0 | 12 |
| Camp Stone | County of Warren | 500 | 0 | 18 |
| Rimrock Picnic Area | County of Warren | 372 | 0 | 0 |
| Whispering Winds Campground | County of Warren | 350 | 0 | 11 |
| Cloverleaf Campground | County of Warren | 350 | 0 | 0 |
| Pittsfield Elem School | County of Warren | 325 | 0 | 0 |
| Kwik Fill M 299 | County of Warren | 300 | 0 | 5 |
| Saint Pauls Center | County of Warren | 300 | 0 | 10 |
| Wesley Woods | County of Warren | 300 | 0 | 36 |
| Warren County Fair Grounds | County of Warren | 300 | 0 | 0 |
| Corps Of Engineers | County of Warren | 250 | 0 | 5 |
| Sugar Grove Free Methodist Ch | County of Warren | 250 | 0 | 5 |
| Hearts Content Recreation Area | County of Warren | 226 | 0 | 7 |
| West Sheffield Water Assn | County of Warren | 225 | 0 | 180 |
| Riverview Estates | County of Warren | 216 | 0 | 0 |
| Pleasant Valley Mhp | County of Warren | 210 | 0 | 166 |
| New Beginnings Family Restaura | County of Warren | 200 | 0 | 6 |
| Wilderness Mhp | County of Warren | 200 | 0 | 60 |
| Docksiders Cafe | County of Warren | 200 | 0 | 24 |
| Group Camping Area | County of Warren | 200 | 0 | 0 |
| Warren Associates | County of Warren | 200 | 0 | 0 |
| Allegheny Res. Marina Site | County of Warren | 200 | 0 | 0 |
| Corral Inn | County of Warren | 200 | 0 | 0 |
| Richards Restaurant | County of Warren | 175 | 0 | 14 |
| Sheffield Compressor Station | County of Warren | 175 | 0 | 0 |
| Pleasant Valley Park | County of Warren | 175 | 0 | 0 |
| Lander Elementary School | County of Warren | 165 | 0 | 0 |
| Bosko Water Co | County of Warren | 160 | 0 | 0 |
| Chapman Dam Camping Area | County of Warren | 160 | 0 | 0 |
| Amvets Post 50 | County of Warren | 150 | 0 | 2 |
| Dollar General Store Sugar Gro | County of Warren | 150 | 0 | 5 |
| The Bucket | County of Warren | 150 | 0 | 3 |
| Starbrick Elementary | County of Warren | 150 | 0 | 0 |
| The Chateau | County of Warren | 150 | 0 | 0 |
| Denny-mar Mobile Village | County of Warren | 147 | 0 | 0 |
| Irvine Elementary School | County of Warren | 145 | 0 | 0 |
| Spring Creek Water Association | County of Warren | 140 | 0 | 0 |
| River View Camp Grounds | County of Warren | 140 | 0 | 0 |
| Chris-andy Mobilehome Park | County of Warren | 133 | 0 | 0 |
| Us Forest Serv Birdsall Edey | County of Warren | 125 | 0 | 0 |
| Buckaloons System #1 | County of Warren | 120 | 0 | 0 |
| Pa Dept Of Transportation | County of Warren | 120 | 0 | 0 |
| Whispering Winds Campground | County of Warren | 120 | 0 | 0 |
| Rustic Restaurant | County of Warren | 120 | 0 | 0 |
| Brokenstraw Inn | County of Warren | 120 | 0 | 0 |
| Jacks Mobile Home Park | County of Warren | 118 | 0 | 0 |
| Hemlock Lakes Park | County of Warren | 114 | 0 | 0 |
| Park Edge Campground | County of Warren | 110 | 0 | 0 |
| Us Forest Service-kinzua Beach | County of Warren | 106 | 0 | 0 |
| Schatzle Mobilehome Park | County of Warren | 105 | 0 | 0 |
| Riverview Communities Lp South | County of Warren | 100 | 0 | 0 |
| Jackson Valley Golf Club | County of Warren | 100 | 0 | 0 |
| Red Oak Campground | County of Warren | 100 | 0 | 0 |
| Blueberry Hill Golf Club | County of Warren | 100 | 0 | 0 |
| Cable Hollow Golf Course | County of Warren | 100 | 0 | 0 |
| YOUNGSVILLE DAIRY QUEEN | County of Warren | 100 | 0 | 0 |
| Mineral Well Restaurant | County of Warren | 100 | 0 | 0 |
| Fernwood Inn | County of Warren | 100 | 0 | 0 |
| N E Ohio Council Boy Scouts | County of Warren | 100 | 0 | 0 |
| Jim's Hot Dog House | County of Warren | 100 | 0 | 0 |
| Penndot-site 27 Warren County | County of Warren | 100 | 0 | 0 |
| Claytons Highway Tavern | County of Warren | 100 | 0 | 0 |
| Allegheny National Fish Hatch | County of Warren | 100 | 0 | 0 |
| Sunset Mobilehome Park | County of Warren | 98 | 0 | 0 |
| Barnes United Methodist Church | County of Warren | 95 | 0 | 0 |
| Forester Restaurant | County of Warren | 90 | 0 | 0 |
| Sunset Valley Campground | County of Warren | 90 | 0 | 0 |
| Brandywine Inn | County of Warren | 90 | 0 | 0 |
| Pennsylvania Electric Company | County of Warren | 85 | 0 | 0 |
| Wcsd Central Office And Lec | County of Warren | 80 | 0 | 0 |
| Chapman State Park | County of Warren | 80 | 0 | 0 |
| Fox Mobilehome Park Mrs R Fox | County of Warren | 80 | 0 | 0 |
| Silves Services | County of Warren | 80 | 0 | 0 |
| Penndot-warren Co.mainten.fac | County of Warren | 80 | 0 | 0 |
| Warren County Christian School | County of Warren | 75 | 0 | 0 |
| Valley View Village Mhp | County of Warren | 75 | 0 | 0 |
| Miracle Mountain Ranch | County of Warren | 75 | 0 | 0 |
| Grand Valley Coop | County of Warren | 75 | 0 | 0 |
| New Process Starbrick Outlet | County of Warren | 75 | 0 | 0 |
| Grand Vly Coop | County of Warren | 75 | 0 | 0 |
| Us Forest Service-cherrytree | County of Warren | 75 | 0 | 0 |
| Bupps | H | 75 | 0 | 0 |
| Pleasant Valley Inn | County of Warren | 75 | 0 | 0 |
| Legends Restaurant | County of Warren | 70 | 0 | 0 |
| Loranger Electronics Center | County of Warren | 70 | 0 | 0 |
| Eastmans Mobile Home Park | County of Warren | 70 | 0 | 0 |
| The Bullpen | County of Warren | 70 | 0 | 0 |
| Cornplanter Inn | County of Warren | 70 | 0 | 0 |
| Oakview Tavern | County of Warren | 70 | 0 | 0 |
| Camp Olmsted Bsa | County of Warren | 65 | 0 | 0 |
| Us Forest Service-hooks Brook | County of Warren | 65 | 0 | 0 |
| Bear Lake Campground | County of Warren | 65 | 0 | 0 |
| Sheffield Veterans Club | County of Warren | 60 | 0 | 0 |
| Conewango Valley Country Club | County of Warren | 60 | 0 | 0 |
| Brokenstraw Valley Camp Sites | County of Warren | 60 | 0 | 0 |
| Usda Forest Service Pinegrove | County of Warren | 60 | 0 | 0 |
| White Lunch | County of Warren | 60 | 0 | 0 |
| La Cantina Ristorante | County of Warren | 60 | 0 | 0 |
| Kafferlins Pittsfield Inn | County of Warren | 60 | 0 | 0 |
| Ribs N Bones | County of Warren | 50 | 0 | 0 |
| Us Forest Service-dew Dropcamp | County of Warren | 50 | 0 | 0 |
| Bear Lake Inn | County of Warren | 50 | 0 | 0 |
| Conewango Motel | County of Warren | 50 | 0 | 0 |
| Andrea's Hillside Lounge | County of Warren | 50 | 0 | 0 |
| Caliph Club | County of Warren | 50 | 0 | 0 |
| N Warren Hos Fm | County of Warren | 50 | 0 | 0 |
| Farm Colony Building-%d Rice | County of Warren | 50 | 0 | 0 |
| Lottsville U Methodist Church | County of Warren | 50 | 0 | 0 |
| Lander Volunteer Fire Dept. | County of Warren | 50 | 0 | 0 |
| Sheffield Rod And Gun Club | County of Warren | 50 | 0 | 0 |
| Brookside Mobile Home Park | County of Warren | 50 | 0 | 0 |
| Portage Restaurant | County of Warren | 50 | 0 | 0 |
| Limberlostrest Co Jm O Donnell | County of Warren | 50 | 0 | 0 |
| Little Bit Of Sweden | County of Warren | 50 | 0 | 0 |
| David's Family Restaurant | County of Warren | 50 | 0 | 0 |
| P Js Pizzeria And Restaurant | County of Warren | 50 | 0 | 0 |
| Rosie Ts | County of Warren | 50 | 0 | 0 |
| Carl R Thomas | County of Warren | 50 | 0 | 0 |
| Caliph Club | County of Warren | 50 | 0 | 0 |
| Diocesan Lodge | County of Warren | 50 | 0 | 0 |
| Quiet Acres Nursing Home | County of Warren | 46 | 0 | 0 |
| Riverside Trailer Court | County of Warren | 45 | 0 | 0 |
| Ruth M Smith Childrens Home | County of Warren | 45 | 0 | 0 |
| Riverside Trailer Court | County of Warren | 45 | 0 | 0 |
| First Presbyterian Church | County of Warren | 45 | 0 | 0 |
| Calvary Chapel Christian Sch | County of Warren | 45 | 0 | 0 |
| Penn Highlands Campground | County of Warren | 40 | 0 | 0 |
| Penn View | County of Warren | 40 | 0 | 0 |
| Tiona Methodist Church | County of Warren | 40 | 0 | 0 |
| Woodland Retreat Campground | County of Warren | 40 | 0 | 0 |
| WRIGHTSVILLE VOL FIRE DEPT | County of Warren | 40 | 0 | 0 |
| Sugar Grove United Meth Church | County of Warren | 40 | 0 | 0 |
| Rowleys Country Kitchen | County of Warren | 40 | 0 | 0 |
| Akeley United Methodist Church | County of Warren | 40 | 0 | 0 |
| Wildwood Inn And Resort | County of Warren | 40 | 0 | 0 |
| Chandlers Valley Mhp | County of Warren | 37 | 0 | 0 |
| Usda Hopewell Campground | County of Warren | 35 | 0 | 0 |
| National Forge Co | County of Warren | 35 | 0 | 0 |
| Pleasant Mobile Park | County of Warren | 35 | 0 | 0 |
| Scandia Elem School | County of Warren | 34 | 0 | 0 |
| Scandia General Store | County of Warren | 30 | 0 | 0 |
| Sugar Grove Vol Fire Dept | County of Warren | 30 | 0 | 0 |
| Barney Roberti Woodworks | County of Warren | 30 | 0 | 0 |
| Pa Dept Of Transporation | County of Warren | 30 | 0 | 0 |
| Lottsville Head Start | County of Warren | 30 | 0 | 0 |
| Masterson Transfer Company Inc | County of Warren | 30 | 0 | 0 |
| Bear Lake Vol Fire Department | County of Warren | 30 | 0 | 0 |
| Lander United Methodist Church | County of Warren | 30 | 0 | 0 |
| Starbrick Voulenteer Fire Dept | County of Warren | 30 | 0 | 0 |
| Farnsworth Upper & Lower Res | County of Warren | 30 | 0 | 0 |
| Pittsfield Community Center | County of Warren | 30 | 0 | 0 |
| Mahan Motors Inc | County of Warren | 26 | 0 | 0 |
| Frosty Jacks | County of Warren | 25 | 0 | 0 |
| Town And Country Food | County of Warren | 25 | 0 | 0 |
| Dollar General #18051 | County of Warren | 25 | 0 | 0 |
| Wolf Run Marina | County of Warren | 25 | 0 | 0 |
| Route 62 Diner | County of Warren | 25 | 0 | 0 |
| Brooks Rocks Campground | County of Warren | 25 | 0 | 0 |
| Frosty Chalet | County of Warren | 25 | 0 | 0 |
| Buckaloons System #2 | County of Warren | 25 | 0 | 0 |
| Dairy Queen | County of Warren | 25 | 0 | 0 |
| Double D | County of Warren | 25 | 0 | 0 |
| Deer Head Inn | County of Warren | 25 | 0 | 0 |
| Cabin In The Pines | County of Warren | 25 | 0 | 0 |
| Sherwood Forest Campground | County of Warren | 25 | 0 | 0 |
| Garland Volunteer Fire Dept | County of Warren | 25 | 0 | 0 |
| Us Forest Service-kinzuaptinfo | County of Warren | 25 | 0 | 0 |
| Usda Handsome Lake | County of Warren | 25 | 0 | 0 |
| Hog Haven | County of Warren | 25 | 0 | 0 |
| National Forge Park-wilder | County of Warren | 25 | 0 | 0 |
| Tnts On The Hill | County of Warren | 25 | 0 | 0 |
| Us Forest Service-oldstateroad | County of Warren | 25 | 0 | 0 |
| Us Forest Service-jakes Rocks | County of Warren | 25 | 0 | 0 |
| Torpedo Specialty Wire Inc | County of Warren | 25 | 0 | 0 |
| Spring Creek Vol Fire Dept | County of Warren | 25 | 0 | 0 |
| Columbus Twp Par-child Ed Cntr | County of Warren | 25 | 0 | 0 |
| Warren Examination Point | County of Warren | 25 | 0 | 0 |
| New Process Co | County of Warren | 25 | 0 | 0 |
| Forester Restaurant | County of Warren | 25 | 0 | 0 |
| Lavernes | County of Warren | 25 | 0 | 0 |
| Sugar Grove American Legion758 | County of Warren | 25 | 0 | 0 |
| Chapman State Park-og&c | County of Warren | 25 | 0 | 0 |
| Clearview Inn | County of Warren | 25 | 0 | 0 |
| Rest Stop 6 Inn | County of Warren | 25 | 0 | 0 |
| Wagon Wheel | County of Warren | 25 | 0 | 0 |
| Pa State Police Barricks | County of Warren | 25 | 0 | 0 |
| Catering Plus | County of Warren | 25 | 0 | 0 |
| Village Fountain | County of Warren | 25 | 0 | 0 |
| Chillys | County of Warren | 25 | 0 | 0 |
| Russell Roller Rink | County of Warren | 25 | 0 | 0 |
| Dairy Delite | County of Warren | 25 | 0 | 0 |
| Mothers Family Restaurant | County of Warren | 25 | 0 | 0 |
| Julies Country Cooking | County of Warren | 25 | 0 | 0 |
| Spring Creek Frontier Golf | County of Warren | 25 | 0 | 0 |
| Sugar Grove Soft Serve | County of Warren | 25 | 0 | 0 |
| Fox Mart | County of Warren | 25 | 0 | 0 |
| The Rustic Log Cabin | County of Warren | 25 | 0 | 0 |
| Jennsen Mobile Home Park | County of Warren | 22 | 0 | 0 |
| Top Notch | County of Warren | 20 | 0 | 0 |
| Brookside Mobile Home Park | County of Warren | 20 | 0 | 0 |
| Vivalley Mobile Home Park | County of Warren | 19 | 0 | 0 |
| Henninger Mobilehome Park | County of Warren | 19 | 0 | 0 |
| Whitmire Mobile Home Park | County of Warren | 19 | 0 | 0 |
| Riverview Communities North | County of Warren | 15 | 0 | 0 |
| Grand Valley Vol Fire Dept | County of Warren | 15 | 0 | 0 |
| Edgewood Court Inc | County of Warren | 10 | 0 | 0 |
| Scandia Volunteer Fire Dept | County of Warren | 10 | 0 | 0 |
| Allegh Nationalfish Hatchery | County of Warren | 5 | 0 | 0 |
| Sugar Grove Elementary School | County of Warren | 5 | 0 | 0 |