We found 213 public water systems in Kittitas county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Ellensburg Water Dept | Ellensburg | 19,310 | 31 | 3 |
| Indian John Rest Area (eb/wb) | County of Kittitas | 8,236 | 0 | 8 |
| Indian John E B Rest Area | County of Kittitas | 6,705 | 0 | 0 |
| Ryegrass Wb Rest Area (eb-wb) | County of Kittitas | 4,023 | 0 | 10 |
| Ski Acres Water System | County of Kittitas | 2,733 | 0 | 0 |
| Wanapum State Park | County of Kittitas | 2,263 | 0 | 2 |
| Kittitas, City Of | County of Kittitas | 2,247 | 0 | 13 |
| Roslyn, City Of | County of Kittitas | 2,099 | 0 | 4 |
| Hyak | County of Kittitas | 2,065 | 0 | 0 |
| Cle Elum Water Department | County of Kittitas | 1,820 | 0 | 116 |
| Hyak Skiing Corporation | County of Kittitas | 1,500 | 0 | 0 |
| Suncadia Resort | County of Kittitas | 1,378 | 0 | 1 |
| Kittitas County Water District #5 | County of Kittitas | 690 | 0 | 11 |
| Exit 115 Mini - Mart | County of Kittitas | 633 | 0 | 0 |
| Kachess Campground/cle Elum Rd | County of Kittitas | 542 | 0 | 1 |
| South Cle Elum Water Dept | County of Kittitas | 541 | 0 | 32 |
| Thorp Arco Am/pm | County of Kittitas | 500 | 0 | 2 |
| Kittitas County Water District #4 | County of Kittitas | 440 | 0 | 5 |
| Vantage Water System | County of Kittitas | 405 | 0 | 11 |
| Kittitas County Water District #7 | County of Kittitas | 382 | 0 | 17 |
| Easton Water District | County of Kittitas | 362 | 0 | 40 |
| Grasslands Water System | County of Kittitas | 260 | 0 | 20 |
| Sun Country Estates 1-2-3 | County of Kittitas | 252 | 0 | 29 |
| Millpond Mobile Manor | County of Kittitas | 245 | 0 | 52 |
| Calvary Baptist Church | County of Kittitas | 243 | 0 | 4 |
| Lake Easton State Park East | County of Kittitas | 236 | 0 | 8 |
| Olmstead Place St Park | County of Kittitas | 235 | 0 | 2 |
| Ginkgo State Park Heritage Area | County of Kittitas | 231 | 0 | 0 |
| Kittitas Co Wd #2 | County of Kittitas | 225 | 0 | 12 |
| Bowers Field | County of Kittitas | 225 | 0 | 0 |
| Alices Restaurant | County of Kittitas | 225 | 0 | 0 |
| Salmon La Sac Cg/cle Elum Rd | County of Kittitas | 212 | 0 | 13 |
| Springwood Ranch Party Barn | County of Kittitas | 210 | 0 | 2 |
| Mcintosh Well #1 | County of Kittitas | 202 | 0 | 1 |
| Pineloch Sun Beach Club | County of Kittitas | 190 | 0 | 23 |
| Sky Meadows Ranch Country Club Wtr | County of Kittitas | 170 | 0 | 47 |
| Lake Easton State Park West | County of Kittitas | 143 | 0 | 17 |
| Flying Horseshoe Guest Ranch | County of Kittitas | 140 | 0 | 9 |
| Brown, Charles V. | County of Kittitas | 138 | 0 | 0 |
| Ginkgo State Park-natural Area | County of Kittitas | 132 | 0 | 2 |
| Thorp School Dist #400 | County of Kittitas | 131 | 0 | 0 |
| Evergreen Valley Water System | County of Kittitas | 130 | 0 | 6 |
| Anderson Hay & Grain Co | County of Kittitas | 130 | 0 | 7 |
| Sun Island Maintenance Assn | County of Kittitas | 130 | 0 | 231 |
| Eagle Valley Campground | County of Kittitas | 129 | 0 | 8 |
| Auvil Fruit Co Inc | County of Kittitas | 125 | 0 | 13 |
| Auvil Fruit Co. #2 | County of Kittitas | 124 | 0 | 0 |
| Pse Wild Horse Operations Bldg | County of Kittitas | 117 | 0 | 0 |
| Camp Koinonia | County of Kittitas | 116 | 0 | 0 |
| Driftwood Acres Maintenance Corp | County of Kittitas | 114 | 0 | 0 |
| Liberty Cafe | County of Kittitas | 112 | 0 | 0 |
| Central Mobile Home Park | County of Kittitas | 110 | 0 | 0 |
| Kaner Flat Cg/naches Rd | County of Kittitas | 110 | 0 | 0 |
| Ellensburg Koa | County of Kittitas | 109 | 0 | 0 |
| Wish Poosh Cg/cle Elum Rd | County of Kittitas | 106 | 0 | 0 |
| Ellensburg Livestock Exchange Inc | County of Kittitas | 103 | 0 | 0 |
| Ensign Ranch Girls Camp | County of Kittitas | 101 | 0 | 0 |
| Irene Rhinehart Park | County of Kittitas | 100 | 0 | 0 |
| R V Town Inc | County of Kittitas | 100 | 0 | 0 |
| Wildwood 2 And 3 | County of Kittitas | 93 | 0 | 0 |
| Ensign Ranch | County of Kittitas | 93 | 0 | 0 |
| Lake Easton Resort | County of Kittitas | 81 | 0 | 0 |
| Twin Pines Restaurant & T P | County of Kittitas | 78 | 0 | 0 |
| Crystal Springs Cg/cle Elum Rd | County of Kittitas | 78 | 0 | 0 |
| Conifer Estates | County of Kittitas | 75 | 0 | 0 |
| Ellensburg Golf And Country Club | County of Kittitas | 71 | 0 | 0 |
| Cascade View Business Park | County of Kittitas | 71 | 0 | 0 |
| The Cove | County of Kittitas | 70 | 0 | 0 |
| Triple L Ranch | County of Kittitas | 69 | 0 | 0 |
| Charlton-kimball Well | County of Kittitas | 65 | 0 | 0 |
| Sons Of Norway Lodge | County of Kittitas | 65 | 0 | 0 |
| Superior Packing Co | County of Kittitas | 65 | 0 | 0 |
| Mineral Springs Resort | County of Kittitas | 61 | 0 | 0 |
| Kittitas County Sewer Dist#1 | County of Kittitas | 60 | 0 | 0 |
| Teanaway Acres Water Co | County of Kittitas | 57 | 0 | 0 |
| Community Bible Church | County of Kittitas | 56 | 0 | 0 |
| Teanaway Junction Cafe | County of Kittitas | 55 | 0 | 0 |
| Burbank Ranch Housing | County of Kittitas | 53 | 0 | 0 |
| Boeing Employees Overnight Camp | County of Kittitas | 53 | 0 | 0 |
| Kachess Community Association | County of Kittitas | 51 | 0 | 0 |
| Operating Engineers Rgnl Training | County of Kittitas | 50 | 0 | 0 |
| Manastash Cg/cle Elum Rd | County of Kittitas | 50 | 0 | 0 |
| Damman School | County of Kittitas | 49 | 0 | 0 |
| Canyon River Ranch | County of Kittitas | 48 | 0 | 0 |
| Lazy F Camp & Retreat Center | County of Kittitas | 48 | 0 | 0 |
| YAKIMA TRAINING CENTER - MPRC | County of Kittitas | 45 | 0 | 0 |
| Boulder Creek Enterprises Inc | County of Kittitas | 44 | 0 | 0 |
| Cle Elum River Cg/cle Elum Rd | County of Kittitas | 43 | 0 | 0 |
| Bullfrog Maintenance Site | County of Kittitas | 43 | 0 | 0 |
| Evergreen Park Water System | County of Kittitas | 42 | 0 | 0 |
| Double K Retreat & Adventure Center | County of Kittitas | 42 | 0 | 0 |
| Taneum Campground/cle Elum Rd | County of Kittitas | 39 | 0 | 0 |
| Mineral Springs Cg/cle Elum Rd | County of Kittitas | 39 | 0 | 0 |
| Hyak Maintenance Site | County of Kittitas | 38 | 0 | 0 |
| Hidden Valley Guest Ranch | County of Kittitas | 36 | 0 | 0 |
| Ice Water Cg/cle Elum Rd | County of Kittitas | 36 | 0 | 0 |
| T & E Tavern | County of Kittitas | 36 | 0 | 0 |
| Salmon La Sac Cg I/cle Elum Rd | County of Kittitas | 34 | 0 | 0 |
| Reservoir Hill Maintenance Assn | County of Kittitas | 34 | 0 | 0 |
| Salmon La Sac Cg G/cle Elum Rd | County of Kittitas | 33 | 0 | 0 |
| Salmon La Sac Cg D/cle Elum Rd | County of Kittitas | 33 | 0 | 0 |
| Salmon La Sac Cg E/cle Elum Rd | County of Kittitas | 33 | 0 | 0 |
| Salmon La Sac Cg F/cle Elum Rd | County of Kittitas | 33 | 0 | 0 |
| Cascade Packing Co | County of Kittitas | 33 | 0 | 0 |
| Teanaway Ridge Water System | County of Kittitas | 31 | 0 | 0 |
| Cottage Farms | County of Kittitas | 30 | 0 | 0 |
| Swiftwater Trailer Park | County of Kittitas | 30 | 0 | 0 |
| Swauk Cg/cle Elum Rd | County of Kittitas | 30 | 0 | 0 |
| Ellensburg Maintenance Site | County of Kittitas | 30 | 0 | 0 |
| High Country Outfitters/camp Wahoo, | County of Kittitas | 30 | 0 | 0 |
| Valley Potato Co., Inc. | County of Kittitas | 30 | 0 | 0 |
| Grasslands Park | County of Kittitas | 29 | 0 | 0 |
| Lake Cle Elum Community Club | County of Kittitas | 28 | 0 | 0 |
| Kachess Lodge | County of Kittitas | 27 | 0 | 0 |
| Teanaway Heights Water & Road Assn | County of Kittitas | 26 | 0 | 0 |
| Pse Wild Horse Maintenance Bldg | County of Kittitas | 26 | 0 | 0 |
| U Fish Road | County of Kittitas | 26 | 0 | 0 |
| Caribou Creek Corral | County of Kittitas | 25 | 0 | 0 |
| Cayuse Cg/cle Elum Rd | County of Kittitas | 25 | 0 | 0 |
| Liberty Work Center | County of Kittitas | 25 | 0 | 0 |
| Lion Rock Spring | County of Kittitas | 25 | 0 | 0 |
| Quartz Mountain Spring | County of Kittitas | 25 | 0 | 0 |
| Redtop Lookout | County of Kittitas | 25 | 0 | 0 |
| Tamarack Spring | County of Kittitas | 25 | 0 | 0 |
| Travelers Rest-rest Area | County of Kittitas | 25 | 0 | 0 |
| Lake Kachess Summer Homes | County of Kittitas | 25 | 0 | 0 |
| Boise-cascade Corp | County of Kittitas | 25 | 0 | 0 |
| Perkins Cake N Steak | County of Kittitas | 25 | 0 | 0 |
| Pine Glen Recreation Property | County of Kittitas | 25 | 0 | 0 |
| Johnson's Service | County of Kittitas | 25 | 0 | 0 |
| Mobil Service Station | County of Kittitas | 25 | 0 | 0 |
| Bingo Truck Stop | County of Kittitas | 25 | 0 | 0 |
| Mountain River Trails Camping Assn | County of Kittitas | 25 | 0 | 0 |
| Camp Illahee Association | County of Kittitas | 25 | 0 | 0 |
| Rustic Villa | County of Kittitas | 25 | 0 | 0 |
| Washington Beef | County of Kittitas | 25 | 0 | 0 |
| C & H Fruit Stand | County of Kittitas | 25 | 0 | 0 |
| Crystal Springs Campgroun | County of Kittitas | 25 | 0 | 0 |
| Kachess Guard Station | County of Kittitas | 25 | 0 | 0 |
| Mineral Springs Campgroun | County of Kittitas | 25 | 0 | 0 |
| Cle Elum Ranger Station | County of Kittitas | 25 | 0 | 0 |
| Alpine Veneer Inc | County of Kittitas | 25 | 0 | 0 |
| Kachess Community Associa | County of Kittitas | 25 | 0 | 0 |
| Kachess Resort | County of Kittitas | 25 | 0 | 0 |
| Elk Meadows Park 1 & 2 | County of Kittitas | 25 | 0 | 0 |
| Snoqualmie Summit Village | County of Kittitas | 25 | 0 | 0 |
| Sportsmans Diner | County of Kittitas | 25 | 0 | 0 |
| Taneum Campground | County of Kittitas | 25 | 0 | 0 |
| Tbanaway Wagonwheel Inc | County of Kittitas | 25 | 0 | 0 |
| Cooper Lake Summer Home Sites | County of Kittitas | 25 | 0 | 0 |
| Timber Mountain Water System | County of Kittitas | 25 | 0 | 0 |
| Cascade View Estates #1 | County of Kittitas | 24 | 0 | 0 |
| Cascade View Estates #2 | County of Kittitas | 24 | 0 | 0 |
| Cascade View Estates #3 | County of Kittitas | 24 | 0 | 0 |
| Whispering Pines Rv Park | County of Kittitas | 23 | 0 | 0 |
| Trailer Corral | County of Kittitas | 21 | 0 | 0 |
| Kittitas Valley Montessori | County of Kittitas | 20 | 0 | 0 |
| Feedcom Enterprises Inc | County of Kittitas | 20 | 0 | 0 |
| Brethren Frontier School | County of Kittitas | 20 | 0 | 0 |
| Rocking Arrow Boys Ranch | County of Kittitas | 20 | 0 | 0 |
| Domerie Bay #2 | County of Kittitas | 18 | 0 | 0 |
| Green Crow #1 | County of Kittitas | 18 | 0 | 0 |
| Yakima River RV Park | County of Kittitas | 16 | 0 | 0 |
| Nielsen, Niel Well | County of Kittitas | 16 | 0 | 0 |
| Arnott-boddy Water System | County of Kittitas | 15 | 0 | 0 |
| Dw #2 Subdivision | County of Kittitas | 15 | 0 | 0 |
| Kittitas Service Center Pse | County of Kittitas | 15 | 0 | 0 |
| Bakers Resort | County of Kittitas | 14 | 0 | 0 |
| Grant Water System | County of Kittitas | 12 | 0 | 0 |
| Stuth, Bill Jr Water System | County of Kittitas | 12 | 0 | 0 |
| Essex Water System | County of Kittitas | 12 | 0 | 0 |
| Lake Easton Estates #9 | County of Kittitas | 12 | 0 | 0 |
| Lake Easton Estates #6 | County of Kittitas | 12 | 0 | 0 |
| Lake Easton Estates #7 | County of Kittitas | 12 | 0 | 0 |
| Lake Easton Estates #8 | County of Kittitas | 12 | 0 | 0 |
| Jones Waterworks | County of Kittitas | 12 | 0 | 0 |
| Kitz Short Plat Water System | County of Kittitas | 12 | 0 | 0 |
| Hyatt, Lawrence R. Water System | County of Kittitas | 10 | 0 | 0 |
| Bmw Water System | County of Kittitas | 10 | 0 | 0 |
| Windsong Water System | County of Kittitas | 10 | 0 | 0 |
| Mathews Road Water System | County of Kittitas | 10 | 0 | 0 |
| Orrion Farm | County of Kittitas | 10 | 0 | 0 |
| Ridgewater Estates 4 | County of Kittitas | 10 | 0 | 0 |
| Ridgewater Estates 1 | County of Kittitas | 10 | 0 | 0 |
| Montgomery, Raymond Water System | County of Kittitas | 10 | 0 | 0 |
| Larrys Auction | County of Kittitas | 10 | 0 | 0 |
| Ridgewater Estates 2 | County of Kittitas | 10 | 0 | 0 |
| Ski Tur Valley | County of Kittitas | 9 | 0 | 0 |
| Cabin Creek | County of Kittitas | 8 | 0 | 0 |
| Hendrickson Short Plat | County of Kittitas | 8 | 0 | 0 |
| Lots A1 A2 A3 Water System | County of Kittitas | 8 | 0 | 0 |
| Sanders Rd Short Plat | County of Kittitas | 8 | 0 | 0 |
| Church Of God | County of Kittitas | 7 | 0 | 0 |
| Roaring Creek | County of Kittitas | 6 | 0 | 0 |
| Ravet Water System | County of Kittitas | 6 | 0 | 0 |
| Diamond Ring Ranch | County of Kittitas | 6 | 0 | 0 |
| Hart Water System #2 | County of Kittitas | 5 | 0 | 0 |
| Ellensburg Livestock Auction | County of Kittitas | 5 | 0 | 0 |
| Ridgewater Estates #3 | County of Kittitas | 5 | 0 | 0 |
| Ridgewater Estates #5 | County of Kittitas | 5 | 0 | 0 |
| Mjb Short Plat | County of Kittitas | 4 | 0 | 0 |
| Wickstrom, Erik & Martha | County of Kittitas | 4 | 0 | 0 |
| Burnam, Norma Campground | County of Kittitas | 4 | 0 | 0 |
| Starwater Water System | County of Kittitas | 4 | 0 | 0 |
| Fays Cafe Tavern | County of Kittitas | 4 | 0 | 0 |
| Circle H Holiday Ranch | County of Kittitas | 3 | 0 | 0 |
| Audo, Joseph Water System | County of Kittitas | 3 | 0 | 0 |
| Laurel Springs | County of Kittitas | 3 | 0 | 0 |
| Bible Rock Camp | County of Kittitas | 2 | 0 | 0 |
| Fish Lake Guard Station | County of Kittitas | 2 | 0 | 0 |
| Thorp Fruit | County of Kittitas | 2 | 0 | 0 |
| Gibson Water System | County of Kittitas | 1 | 0 | 0 |
| Roza Adult Fish Trap | County of Kittitas | 1 | 0 | 0 |