We found 112 public water systems that could serve the same population as Hocking Hills Koa (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Logan, City Of | County of Hocking | 6,704 | 0 | 13 |
| Odnr-hocking Hills State Park | County of Hocking | 3,059 | 0 | 37 |
| Hocking Hills Flea Market Pws | County of Hocking | 1,061 | 0 | 0 |
| Carbon Hill Water Association | County of Hocking | 910 | 0 | 14 |
| Laurelville, Vlg Of | County of Hocking | 586 | 0 | 23 |
| Hocking Drive-in Theater | County of Hocking | 500 | 0 | 0 |
| Murray City Village Pws | County of Hocking | 449 | 0 | 14 |
| Chieftain Elementary School Pws | County of Hocking | 440 | 0 | 0 |
| Old Straitsville-rockbridge | County of Hocking | 425 | 0 | 0 |
| Hocking Hills Elementary School | County of Hocking | 320 | 0 | 4 |
| Supt-west Logan Waterworks Co. | County of Hocking | 291 | 0 | 0 |
| Green Elementary School | Logan | 283 | 0 | 0 |
| Camp Akita | County of Hocking | 225 | 0 | 6 |
| Union Furnace Elem. Scl. | Union Furnace | 208 | 0 | 0 |
| Camp Otterbein-lodge | Logan | 200 | 0 | 0 |
| Camp Oty-okwa | County of Hocking | 180 | 0 | 1 |
| Dogwood Crossing Too | County of Hocking | 175 | 0 | 8 |
| Odot-rest Area 10-27 Pws | County of Hocking | 150 | 0 | 0 |
| Odot-rest Area 10-28 Pws | County of Hocking | 150 | 0 | 0 |
| South Bloomingville Elem | South Bloomingville | 144 | 0 | 0 |
| Camp Wyandot-pool Pws | County of Hocking | 140 | 0 | 7 |
| Mgr,rush Creek Camp | County of Hocking | 125 | 0 | 0 |
| Union Furnace United Met | Union Furnace | 120 | 0 | 0 |
| Jehovahs Witness Kingdom | County of Hocking | 115 | 0 | 0 |
| Camp Wyandot-lodge Pws | County of Hocking | 114 | 0 | 0 |
| Marion Elementary School | County of Hocking | 110 | 0 | 0 |
| Lost Hollow Campground | County of Hocking | 100 | 0 | 0 |
| First Church | Logan | 100 | 0 | 0 |
| Rockbridge Petrloeum, Ltd Pws | County of Hocking | 100 | 0 | 0 |
| Antioch Alliance Church | County of Hocking | 100 | 0 | 0 |
| Mgr,bobs Westgate Sohio | County of Hocking | 100 | 0 | 0 |
| Jacks Steak House | Logan | 100 | 0 | 0 |
| Dees Diner | County of Hocking | 100 | 0 | 0 |
| Mgr,camp Akita Well #2 | County of Hocking | 100 | 0 | 0 |
| Hocking Hills Church Christ | County of Hocking | 100 | 0 | 0 |
| Old Mans Cave Chalets Pws | County of Hocking | 90 | 0 | 0 |
| Hocking Hills Cc-proshop | Logan | 90 | 0 | 0 |
| Peoples Church, Inc. | Logan | 80 | 0 | 0 |
| Mgr,jr Rozella Restaurant | County of Hocking | 75 | 0 | 0 |
| Mgr,camp Otterbien-well #1 | County of Hocking | 75 | 0 | 0 |
| Vfw Post 6854 Bingo Hall | Logan | 75 | 0 | 0 |
| Crocketts Run | County of Hocking | 75 | 0 | 0 |
| Skyline Trailer Court | County of Hocking | 71 | 0 | 0 |
| Principal, West Logan | County of Hocking | 71 | 0 | 0 |
| Windy Hills Golf | County of Hocking | 65 | 0 | 0 |
| Lake Logan Mobile Home P | Logan | 64 | 0 | 0 |
| Shepherd Of The Hills Evangelic Church | County of Hocking | 60 | 0 | 0 |
| Campbell Cove Camping, Inc. | Logan | 60 | 0 | 0 |
| St John Mennonite Chapel | Logan | 60 | 0 | 0 |
| Mgr,j And B Carry Out | County of Hocking | 55 | 0 | 0 |
| Us F/service,sand Run Pub.area | County of Hocking | 51 | 0 | 0 |
| Ohio Operating Engineers Appren Program | County of Hocking | 50 | 0 | 0 |
| Top Of The Caves Camp Pws | County of Hocking | 50 | 0 | 0 |
| Odot-well 4 Pws | Bidwell | 50 | 0 | 0 |
| Haydenville Methodist Church | County of Hocking | 50 | 0 | 0 |
| Kline Memorial Um Church | Logan | 50 | 0 | 0 |
| Gibisonville School Pws | Gibisonville | 50 | 0 | 0 |
| Hocking Hills Family Fun | Rockbridge | 50 | 0 | 0 |
| Dry Dock Inn | County of Hocking | 50 | 0 | 0 |
| Mgr,general Clay Corp(well #2) | County of Hocking | 46 | 0 | 0 |
| Glenlaurel Inn Pws | County of Hocking | 45 | 0 | 0 |
| Heavenly View Tabernacle | Rockbridge | 45 | 0 | 0 |
| Arcadia Acres Nursing Home | County of Hocking | 43 | 0 | 0 |
| Dj Crafts And Diner | County of Hocking | 40 | 0 | 0 |
| Logan Holiness Church | County of Hocking | 40 | 0 | 0 |
| Manager,fairview Rest Home | County of Hocking | 38 | 0 | 0 |
| Logan Hills Mhp | County of Hocking | 35 | 0 | 0 |
| South Bloomingville Tavern | County of Hocking | 35 | 0 | 0 |
| Redmen Lodge 81 Pws | County of Hocking | 35 | 0 | 0 |
| Rockbridge United Methodist Ch | County of Hocking | 35 | 0 | 0 |
| Pastor,west Logan Weslyan Ch. | County of Hocking | 35 | 0 | 0 |
| Inn At Cedar Falls | County of Hocking | 32 | 0 | 0 |
| Scenic Hills Estates | County of Hocking | 32 | 0 | 0 |
| Majestic Oaks Lodge Pws | County of Hocking | 32 | 0 | 0 |
| General Clay Products | Nelsonville | 31 | 0 | 0 |
| Mgr,the Hanging Rock Bar | County of Hocking | 30 | 0 | 0 |
| St. John Record Programs, Inc. | Logan | 30 | 0 | 0 |
| Odnr-lake Logan-picnic Area #3 | County of Hocking | 30 | 0 | 0 |
| Salt Creek Valley Church | South Bloomingville | 30 | 0 | 0 |
| Trinitarian Advent C Ch. | Rockbridge | 30 | 0 | 0 |
| Country Pines Apartments | County of Hocking | 27 | 0 | 0 |
| Cowboy Larry's Horse Camp Pws | County of Hocking | 25 | 0 | 0 |
| Hide -a -way Hills Golf Course Pws | County of Hocking | 25 | 0 | 0 |
| Jim Bos Bar And Diner Pws | County of Hocking | 25 | 0 | 0 |
| Big Sycamore Family Campground Pool | County of Hocking | 25 | 0 | 0 |
| Big Sycamore Family Campground Llc | County of Hocking | 25 | 0 | 0 |
| Odnr-hocking Hills-ash Cave | County of Hocking | 25 | 0 | 0 |
| Odnr-hocking Hills-cedar Falls | County of Hocking | 25 | 0 | 0 |
| Northland Farm Equipment | County of Hocking | 25 | 0 | 0 |
| Shawnee Inn | Logan | 25 | 0 | 0 |
| Odnr-hocking Hills-conkles Hollow | County of Hocking | 25 | 0 | 0 |
| Mgr,oh Dnr,sand Run St.park | County of Hocking | 25 | 0 | 0 |
| Saint John Lutheran Ch. | Logan | 25 | 0 | 0 |
| Voice Of Faith Temple | County of Hocking | 25 | 0 | 0 |
| Mgr,wagon Wheel Campground | Washington Twp | 25 | 0 | 0 |
| Mgr,oh Dnr,lake Logan State Pk | County of Hocking | 25 | 0 | 0 |
| Odnr-lake Logan Picnic | Logan | 25 | 0 | 0 |
| Bowlby's Sunoco Station Pws | Logan | 25 | 0 | 0 |
| Manager,huddles Incorporated | County of Hocking | 25 | 0 | 0 |
| Mgr Lm Grocery | County of Hocking | 25 | 0 | 0 |
| Seymour's Service Stat | South Bloomingville | 25 | 0 | 0 |
| Camp Otterbein-handpump | Columbus | 25 | 0 | 0 |
| Happy Hills Campground | Nelsonville | 25 | 0 | 0 |
| Mgr,happy Hills Campground Inc | County of Hocking | 25 | 0 | 0 |
| Lost Hollow Camp Sites | County of Hocking | 25 | 0 | 0 |
| Odnr-hocking Hills-rockhouse | County of Hocking | 25 | 0 | 0 |
| Odnr-hocking Hills-cantwell Cliffs | County of Hocking | 25 | 0 | 0 |
| Hocking Hills Cc-hand Pu | Logan | 25 | 0 | 0 |
| West Pleasant Hill Church | County of Hocking | 25 | 0 | 0 |
| Stacked Stones Retreat | Laurelville | 25 | 0 | 0 |
| Ash Cave Cabins Pws | County of Hocking | 25 | 0 | 0 |
| Clear Creek Metro Park-benua House Pws | Rockbridge | 25 | 0 | 0 |