We found 280 public water systems in Okanogan county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Omak, City Of | County of Okanogan | 4,845 | 0 | 5 |
| Oroville, City Of | County of Okanogan | 3,327 | 0 | 79 |
| Brewster, City Of | County of Okanogan | 3,235 | 0 | 25 |
| Okanogan Water Department, City Of | County of Okanogan | 2,539 | 0 | 57 |
| Tonasket Water System | County of Okanogan | 2,392 | 0 | 15 |
| Osoyoos Lake State Park | County of Okanogan | 2,262 | 0 | 0 |
| Pearrygin Lake State Park - Both Cg | County of Okanogan | 2,060 | 0 | 6 |
| Okanogan Neighbors | County of Okanogan | 1,600 | 0 | 2 |
| Coulee Dam Water Dept | County of Okanogan | 1,359 | 0 | 3 |
| Alta Lake State Park | County of Okanogan | 1,073 | 0 | 9 |
| Pateros Water Department | County of Okanogan | 1,050 | 0 | 31 |
| Conconully State Park | County of Okanogan | 1,004 | 0 | 10 |
| Twisp, Town Of | County of Okanogan | 998 | 0 | 37 |
| Monse-riggan Camp | County of Okanogan | 943 | 0 | 0 |
| Johns Farms | County of Okanogan | 872 | 0 | 3 |
| Okanogan County Fair Water System | County of Okanogan | 867 | 0 | 12 |
| Liberty Bell High School | County of Okanogan | 642 | 0 | 114 |
| North End Water Users | County of Okanogan | 600 | 0 | 0 |
| Brewster Flat Domestic Water Assn | County of Okanogan | 542 | 0 | 34 |
| Nespelem Water Dept | County of Okanogan | 510 | 0 | 55 |
| Way S Water System | County of Okanogan | 505 | 0 | 2 |
| Bridgeport State Park | County of Okanogan | 439 | 0 | 8 |
| Winthrop, Town Of | County of Okanogan | 405 | 0 | 9 |
| Washington Pass Well - Methow Rd | County of Okanogan | 400 | 0 | 3 |
| Omak Hud Trailer Court | County of Okanogan | 400 | 0 | 0 |
| Sun Mountain Resort | County of Okanogan | 376 | 0 | 70 |
| Loup Loup Ski Area | County of Okanogan | 367 | 0 | 3 |
| Elmer City Water System | County of Okanogan | 358 | 0 | 13 |
| Riverside, Town Of | County of Okanogan | 349 | 0 | 35 |
| Jaw Farms Inc | County of Okanogan | 330 | 0 | 10 |
| Conconully City Well | County of Okanogan | 299 | 0 | 16 |
| Qvl Plywood | County of Okanogan | 275 | 0 | 0 |
| Conconully Sp Boat Launch | County of Okanogan | 258 | 0 | 5 |
| Sandflat Water Association | County of Okanogan | 254 | 0 | 6 |
| Suncrest Plat Water System | County of Okanogan | 253 | 0 | 21 |
| Coleman Butte Water Assn | County of Okanogan | 250 | 0 | 30 |
| Duck Lake Water Association | County of Okanogan | 232 | 0 | 30 |
| Loomis Water Users Assn Inc | County of Okanogan | 225 | 0 | 10 |
| Colville Indian Agency | County of Okanogan | 225 | 0 | 0 |
| Riverbend Rv Park | County of Okanogan | 222 | 0 | 10 |
| Colville Indian Agency | County of Okanogan | 210 | 0 | 0 |
| Oroville Golf Club | County of Okanogan | 201 | 0 | 11 |
| Los Reyes Inc | County of Okanogan | 200 | 0 | 0 |
| Colville - Albert Orr Water System | County of Okanogan | 200 | 0 | 0 |
| Bonaparte Boy Scout Camp | County of Okanogan | 200 | 0 | 0 |
| P And G Orchards Camp 2 | County of Okanogan | 196 | 0 | 12 |
| Jerry's Resort | County of Okanogan | 192 | 0 | 0 |
| Progressive Flat Water Assn | County of Okanogan | 178 | 0 | 60 |
| Colville Malott Community Wt Sys | County of Okanogan | 171 | 0 | 0 |
| Early Winters Campground #2 | County of Okanogan | 170 | 0 | 0 |
| Edelweiss Maintenance Commission | County of Okanogan | 158 | 0 | 62 |
| Emerald City Green Machine | County of Okanogan | 155 | 0 | 4 |
| P And G Orchards Camp 3 | County of Okanogan | 152 | 0 | 6 |
| Country River Farm | County of Okanogan | 152 | 0 | 3 |
| Homestead Mobile Home Park | County of Okanogan | 150 | 0 | 28 |
| River Road Mobile Home Park | County of Okanogan | 150 | 0 | 123 |
| Klipchuck Cg - Methow Rd | County of Okanogan | 149 | 0 | 5 |
| Aston Estates | County of Okanogan | 141 | 0 | 19 |
| Johns Farm Labor Camp | County of Okanogan | 140 | 0 | 0 |
| Methow Valley Middle School | County of Okanogan | 133 | 0 | 0 |
| Alta Lake Golf Course Plat | County of Okanogan | 131 | 0 | 267 |
| Conconully Sp Primitive Area | County of Okanogan | 129 | 0 | 5 |
| White Water System | County of Okanogan | 124 | 0 | 0 |
| Tonasket Free Methodist Church | County of Okanogan | 120 | 0 | 0 |
| Loup Loup & Jr Campgrounds | County of Okanogan | 120 | 0 | 0 |
| Mazama Store | County of Okanogan | 109 | 0 | 0 |
| Bonaparte Lake Resort | County of Okanogan | 104 | 0 | 0 |
| Grandma Goose's Cafe | County of Okanogan | 104 | 0 | 0 |
| Shoestring Cafe Water System | County of Okanogan | 103 | 0 | 0 |
| Wauconda Cafe | County of Okanogan | 102 | 0 | 0 |
| Crumbacher Estates Water System | County of Okanogan | 101 | 0 | 0 |
| M J Trailer Ranch | County of Okanogan | 100 | 0 | 0 |
| Red Rock Saloon | County of Okanogan | 100 | 0 | 0 |
| Buckhorn Mountain Water System | County of Okanogan | 100 | 0 | 0 |
| Pearrygin Lake State Park - West Cg | County of Okanogan | 100 | 0 | 0 |
| Ellisforde 7th Day Adventist Sch. | County of Okanogan | 100 | 0 | 0 |
| Derrys Resort | County of Okanogan | 97 | 0 | 0 |
| Dan's Market | County of Okanogan | 91 | 0 | 0 |
| Seatons Grove Community Ulid 2 | County of Okanogan | 90 | 0 | 0 |
| Blackpine Lake Campground | County of Okanogan | 83 | 0 | 0 |
| Wilson Ranch Pd Water System | County of Okanogan | 80 | 0 | 0 |
| Bear Creek Airport Park | County of Okanogan | 80 | 0 | 0 |
| Wilson Ranch Pd Water System | County of Okanogan | 78 | 0 | 0 |
| Dons Fruit Stand | County of Okanogan | 77 | 0 | 0 |
| Arrowhead Ranch | County of Okanogan | 76 | 0 | 0 |
| Sit N Bull Saloon | County of Okanogan | 76 | 0 | 0 |
| Fort Okanogan State Park | County of Okanogan | 74 | 0 | 0 |
| Winthrop Koa | County of Okanogan | 72 | 0 | 0 |
| Liars Cove | County of Okanogan | 71 | 0 | 0 |
| Lost River Airport Association | County of Okanogan | 71 | 0 | 0 |
| Ncsb | County of Okanogan | 71 | 0 | 0 |
| Gamble Sands | County of Okanogan | 70 | 0 | 0 |
| Wolf Creek Property Owners Assn | County of Okanogan | 70 | 0 | 0 |
| Wagon Wheels Cafe | County of Okanogan | 69 | 0 | 0 |
| Bear Creek Golf Course | County of Okanogan | 68 | 0 | 0 |
| Gold Digger Orchards (north Co.) #2 | County of Okanogan | 66 | 0 | 0 |
| Keystone Ranch | County of Okanogan | 66 | 0 | 0 |
| Riverview Water Users Assn | Coulee Dam | 65 | 0 | 0 |
| Chesaw Water System | County of Okanogan | 65 | 0 | 0 |
| Pine Creek Housing | County of Okanogan | 64 | 0 | 0 |
| Ellisforde Church Of The Brethren | County of Okanogan | 64 | 0 | 0 |
| Pinecrest Subdivison Owners | County of Okanogan | 63 | 0 | 0 |
| Shady Pines Resort | County of Okanogan | 62 | 0 | 0 |
| Honeybear Growers | County of Okanogan | 60 | 0 | 0 |
| Emanuel Heights Water System | County of Okanogan | 60 | 0 | 0 |
| Eastlake Water Association | County of Okanogan | 60 | 0 | 0 |
| Vista Vue Water Users Assn | County of Okanogan | 60 | 0 | 0 |
| Our Lady Of Valley Catholic Church | County of Okanogan | 60 | 0 | 0 |
| Poplar Flat Campground | County of Okanogan | 60 | 0 | 0 |
| Dessautel Community | County of Okanogan | 60 | 0 | 0 |
| T Bar M Trailer Ranch | County of Okanogan | 60 | 0 | 0 |
| River Run Inn | County of Okanogan | 59 | 0 | 0 |
| Molson Grange And Museum | County of Okanogan | 58 | 0 | 0 |
| Summit Lake Boy Scout Camp | County of Okanogan | 55 | 0 | 0 |
| Palmer Lake Land Company | County of Okanogan | 54 | 0 | 0 |
| Appleway Trailer Court | County of Okanogan | 54 | 0 | 0 |
| Winthrop Inn Motel | County of Okanogan | 54 | 0 | 0 |
| Hi-color Orchard Farmworker Housing | County of Okanogan | 53 | 0 | 0 |
| Old Orchard Estates Water System | County of Okanogan | 52 | 0 | 0 |
| Salmon Meadows Cg - Tonasket Rd | County of Okanogan | 52 | 0 | 0 |
| Oroville Cong.of Jehovahs Witnesses | County of Okanogan | 51 | 0 | 0 |
| Nickell Orchard | Pateros | 51 | 0 | 0 |
| Poirier Orchard | County of Okanogan | 50 | 0 | 0 |
| Village Market Cafe | County of Okanogan | 50 | 0 | 0 |
| Mack's O.k. Home Bakery | County of Okanogan | 50 | 0 | 0 |
| Riverside Sportsmens Assn | County of Okanogan | 50 | 0 | 0 |
| Paradise Valley Campground Resort | County of Okanogan | 49 | 0 | 0 |
| Early Winters Wc - Methow Rd | County of Okanogan | 48 | 0 | 0 |
| Johnson Creek Water Users Assn | County of Okanogan | 48 | 0 | 0 |
| Lone Pine Water Assn | County of Okanogan | 48 | 0 | 0 |
| Highland Fire Camp | County of Okanogan | 47 | 0 | 0 |
| Indian Camp - Buckhorn Mt Orchard | County of Okanogan | 43 | 0 | 0 |
| Hardin Housing Water System | County of Okanogan | 43 | 0 | 0 |
| Altas West Beach Resort | County of Okanogan | 43 | 0 | 0 |
| Burnt Finger Water System | County of Okanogan | 43 | 0 | 0 |
| Mazama Water Association | County of Okanogan | 42 | 0 | 0 |
| Custom Orchard 1 | County of Okanogan | 42 | 0 | 0 |
| Country Town Coffee Shop | County of Okanogan | 42 | 0 | 0 |
| Jn Camp - Buckhorn Mt Orchards | County of Okanogan | 41 | 0 | 0 |
| Sun Cove Water System | County of Okanogan | 41 | 0 | 0 |
| Fowlers Mhp, Llc | County of Okanogan | 40 | 0 | 0 |
| Patricio's Restaurant | County of Okanogan | 40 | 0 | 0 |
| Log House Drive In | County of Okanogan | 38 | 0 | 0 |
| Alamo Orchard Co - Pateros | County of Okanogan | 37 | 0 | 0 |
| Many Lakes Mobile Home Park | County of Okanogan | 37 | 0 | 0 |
| Spectacle Lake Resort | County of Okanogan | 37 | 0 | 0 |
| Smith & Nelson | County of Okanogan | 36 | 0 | 0 |
| Gold Digger Apples (north County) | County of Okanogan | 36 | 0 | 0 |
| War Creek Campground | County of Okanogan | 35 | 0 | 0 |
| Falls Creek Campground | County of Okanogan | 35 | 0 | 0 |
| Birch Spring Wtr Users | County of Okanogan | 35 | 0 | 0 |
| Suncrest Day Care Center Wtr Sys. | County of Okanogan | 33 | 0 | 0 |
| Carlton Grocery | County of Okanogan | 33 | 0 | 0 |
| Pine Forest Water System | County of Okanogan | 32 | 0 | 0 |
| Lost Lake Cg - Tonasket Rd | County of Okanogan | 32 | 0 | 0 |
| Westar Retreat | County of Okanogan | 31 | 0 | 0 |
| Chesaw Water Assn #1 | County of Okanogan | 31 | 0 | 0 |
| Aeneas General Store | County of Okanogan | 30 | 0 | 0 |
| Ranch Drive Inn | County of Okanogan | 30 | 0 | 0 |
| Noots Drive Inn | County of Okanogan | 30 | 0 | 0 |
| Chief Joseph Dam Orientation Area | County of Okanogan | 30 | 0 | 0 |
| Champerty Shores | County of Okanogan | 29 | 0 | 0 |
| Chief Joseph Orchard | County of Okanogan | 29 | 0 | 0 |
| Gold Digger Orchards (north Co.) #1 | County of Okanogan | 29 | 0 | 0 |
| Valley View Estates Water System | County of Okanogan | 28 | 0 | 0 |
| Westar Retreat | County of Okanogan | 28 | 0 | 0 |
| Brewster Sda School | County of Okanogan | 28 | 0 | 0 |
| Methow Water System Inc | County of Okanogan | 27 | 0 | 0 |
| Roadway Stores Inc | County of Okanogan | 27 | 0 | 0 |
| North Country Christian School | County of Okanogan | 27 | 0 | 0 |
| Mazama Country Inn | County of Okanogan | 26 | 0 | 0 |
| Salmon Meadows Ski Lodge | County of Okanogan | 26 | 0 | 0 |
| Jack Pot Food Mart | County of Okanogan | 26 | 0 | 0 |
| Wagon Wheel Bar & Grill | County of Okanogan | 26 | 0 | 0 |
| Flochs Mobile Home Park | County of Okanogan | 25 | 0 | 0 |
| Memorial Campground | County of Okanogan | 25 | 0 | 0 |
| Nice Campground | County of Okanogan | 25 | 0 | 0 |
| River Bend Campground | County of Okanogan | 25 | 0 | 0 |
| Sugarloaf Campground | County of Okanogan | 25 | 0 | 0 |
| Sweat Creek Campground | County of Okanogan | 25 | 0 | 0 |
| Upper Beaver Lake Campground | County of Okanogan | 25 | 0 | 0 |
| Loop Loop Rest Area | County of Okanogan | 25 | 0 | 0 |
| Coulee Dam | County of Okanogan | 25 | 0 | 0 |
| East Omak | County of Okanogan | 25 | 0 | 0 |
| Elmer City | County of Okanogan | 25 | 0 | 0 |
| Nespelem Community | County of Okanogan | 25 | 0 | 0 |
| Chopaka Lake Camp Ground | County of Okanogan | 25 | 0 | 0 |
| North Valley Rv Park | County of Okanogan | 25 | 0 | 0 |
| North Fork Nine Mile | County of Okanogan | 25 | 0 | 0 |
| Rock Creek Camp | County of Okanogan | 25 | 0 | 0 |
| Reynolds Resort | County of Okanogan | 25 | 0 | 0 |
| Methow Valley United Methodist | County of Okanogan | 25 | 0 | 0 |
| Pearrygin Lake State Park | County of Okanogan | 25 | 0 | 0 |
| Top Red Law Place | County of Okanogan | 25 | 0 | 0 |
| Camp Ortoha | County of Okanogan | 25 | 0 | 0 |
| Okanogan River Ranches | County of Okanogan | 25 | 0 | 0 |
| Lens Pearrygin Lake Resort | County of Okanogan | 25 | 0 | 0 |
| Liberty Woodlands | County of Okanogan | 25 | 0 | 0 |
| Don's Mobile Home Court | County of Okanogan | 25 | 0 | 0 |
| Cook Orchard System | County of Okanogan | 25 | 0 | 0 |
| Bonaparte Lake | County of Okanogan | 25 | 0 | 0 |
| Bonaparte Lake Campground | County of Okanogan | 25 | 0 | 0 |
| Bonaparte Well #2 Campground | County of Okanogan | 25 | 0 | 0 |
| Buck Lake Campground | County of Okanogan | 25 | 0 | 0 |
| Conconully Uis | County of Okanogan | 25 | 0 | 0 |
| Cottonwood Campground | County of Okanogan | 25 | 0 | 0 |
| Cuthroat Trailhead Campground | County of Okanogan | 25 | 0 | 0 |
| Early Winters Campground #1 | County of Okanogan | 25 | 0 | 0 |
| Gate Creek Campground | County of Okanogan | 25 | 0 | 0 |
| Hidden Campground | County of Okanogan | 25 | 0 | 0 |
| Jr Campground | County of Okanogan | 25 | 0 | 0 |
| Balanced Rock Spring | County of Okanogan | 25 | 0 | 0 |
| Ballard Campground | County of Okanogan | 25 | 0 | 0 |
| Country Town Motel & Rv | County of Okanogan | 25 | 0 | 0 |
| Cascade Services Subdivision | County of Okanogan | 25 | 0 | 0 |
| Early Winters Campground #1 | County of Okanogan | 25 | 0 | 0 |
| Hidden Campground | County of Okanogan | 25 | 0 | 0 |
| Loop Loop Rest Area | County of Okanogan | 25 | 0 | 0 |
| Timberline Meadows P.d. #92 | County of Okanogan | 25 | 0 | 0 |
| Conconully Cafe & Tavern | County of Okanogan | 25 | 0 | 0 |
| Silverline Resort | County of Okanogan | 24 | 0 | 0 |
| Jacks Rv Park 1 | County of Okanogan | 24 | 0 | 0 |
| Horizon Estates 1 Water System | County of Okanogan | 24 | 0 | 0 |
| Foggy River Water System | County of Okanogan | 24 | 0 | 0 |
| Pariseau Orchard - Bridgeport Camp | County of Okanogan | 24 | 0 | 0 |
| U.s. Border Station | County of Okanogan | 23 | 0 | 0 |
| Sitzmark Ski Area | County of Okanogan | 22 | 0 | 0 |
| Twisp River Sky Ranch Water System | County of Okanogan | 21 | 0 | 0 |
| Davis Lake Water System | County of Okanogan | 21 | 0 | 0 |
| Dunckel Trailer Park | County of Okanogan | 21 | 0 | 0 |
| Bj's Mobile Home Court Water System | County of Okanogan | 20 | 0 | 0 |
| Eden Valley Guest Ranch | County of Okanogan | 20 | 0 | 0 |
| Winthrop National Fish Hatcher | County of Okanogan | 18 | 0 | 0 |
| Chesaw Water Assn #2 | County of Okanogan | 18 | 0 | 0 |
| Lazy Daze Water Association | County of Okanogan | 17 | 0 | 0 |
| Arnold Tracts Water System | County of Okanogan | 16 | 0 | 0 |
| Spring Coulee Heights Water System | County of Okanogan | 16 | 0 | 0 |
| Sda - Thallheimer Water Assn | County of Okanogan | 16 | 0 | 0 |
| Beach Flat Water System | County of Okanogan | 16 | 0 | 0 |
| Crows Nest Acres | County of Okanogan | 16 | 0 | 0 |
| Bonaparte Well 4 - Tonasket Rd | County of Okanogan | 15 | 0 | 0 |
| Lone Fir Cg - Methow Rd | County of Okanogan | 15 | 0 | 0 |
| Foster Guest Ranch #3 | County of Okanogan | 15 | 0 | 0 |
| Beaver Lake Cg - Tonasket Rd | County of Okanogan | 15 | 0 | 0 |
| Beth Lake Cg - Tonasket Rd | County of Okanogan | 15 | 0 | 0 |
| Early Winters Cabins | County of Okanogan | 14 | 0 | 0 |
| Molson Water Users | County of Okanogan | 13 | 0 | 0 |
| Oro Beach Rv Resort | County of Okanogan | 13 | 0 | 0 |
| Ok Ranch Inc | County of Okanogan | 13 | 0 | 0 |
| Rainbow Valley Church | County of Okanogan | 12 | 0 | 0 |
| Wesola Polana | County of Okanogan | 11 | 0 | 0 |
| Conconully Lake Resort | County of Okanogan | 10 | 0 | 0 |
| Oriole Cg - Tonasket Rd | County of Okanogan | 10 | 0 | 0 |
| Ruffed Grouse Cg - Methow Rd | County of Okanogan | 10 | 0 | 0 |
| Eightmile Ranch | County of Okanogan | 10 | 0 | 0 |
| Falls Creek Cg - Methow Rd | County of Okanogan | 10 | 0 | 0 |
| Flat Cg - Methow Rd | County of Okanogan | 10 | 0 | 0 |
| Pariseau Orchard - Camp 3 | County of Okanogan | 10 | 0 | 0 |
| Twisp Maint/site | County of Okanogan | 9 | 0 | 0 |
| Heaven Hills Estates | County of Okanogan | 9 | 0 | 0 |
| Arevalo's Well | County of Okanogan | 9 | 0 | 0 |
| Ryan Harvey Short Plat | County of Okanogan | 9 | 0 | 0 |
| Nold Plat | County of Okanogan | 9 | 0 | 0 |
| Foster Guest Ranch #1 | County of Okanogan | 8 | 0 | 0 |
| ZAHN, DOUGLAS ORCHARDS | County of Okanogan | 8 | 0 | 0 |
| Spectacle Falls Resort | County of Okanogan | 7 | 0 | 0 |
| Apple Management Company | County of Okanogan | 7 | 0 | 0 |
| Sonora Point Resort | County of Okanogan | 5 | 0 | 0 |
| Campbell Short Plat | County of Okanogan | 5 | 0 | 0 |
| Hi Lo Orchard Ltd | County of Okanogan | 5 | 0 | 0 |
| Gold Digger Apples (kernan) | County of Okanogan | 5 | 0 | 0 |
| Glass House | County of Okanogan | 4 | 0 | 0 |
| Whitestone Mountain Orchard | County of Okanogan | 4 | 0 | 0 |
| Foster Guest Ranch #2 | County of Okanogan | 4 | 0 | 0 |
| ZAHN, BRUCE ORCHARD | County of Okanogan | 3 | 0 | 0 |
| Other Place, The | County of Okanogan | 3 | 0 | 0 |
| Last Chance Lodge Pd 1 | County of Okanogan | 2 | 0 | 0 |
| Last Chance Lodge Pd 2 | County of Okanogan | 2 | 0 | 0 |
| Thompson, Chuck Water System | County of Okanogan | 2 | 0 | 0 |
| Carlton Restaurant & Rv Park | County of Okanogan | 2 | 0 | 0 |