We found 88 public water systems that could serve the same population as Mgr;highland County Water Co. (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Highland County Water Company, Inc. | Hillsboro | 32,750 | 8 | 12 |
| Hillsboro City | County of Highland | 6,650 | 0 | 12 |
| Greenfield City Pws | Greenfield | 4,600 | 12 | 9 |
| Lynchburg Village Pws | County of Highland | 1,515 | 0 | 49 |
| Leesburg Village | County of Highland | 1,300 | 0 | 9 |
| Supt,lynchburg Water Dept. | County of Highland | 1,200 | 0 | 0 |
| Mgr,odnr Rocky Fork St Pk | County of Highland | 1,000 | 0 | 0 |
| Mgr,odnr Rocky Fork St Pk | County of Highland | 1,000 | 0 | 0 |
| Mgr,odnr,rocky Fork St Pk-no10 | County of Highland | 800 | 0 | 0 |
| Mgr,odnr Rocky Fork St Pk | County of Highland | 600 | 0 | 0 |
| Mgr,babington Mobile Home Park | County of Highland | 250 | 0 | 0 |
| Rocky Fork Truck Stop | County of Highland | 210 | 0 | 0 |
| Marshall Elementary School | County of Highland | 200 | 0 | 0 |
| Fort Hill Youth Camp | Hillsboro | 200 | 0 | 0 |
| Glenwood Mobile Home Sales | County of Highland | 200 | 0 | 0 |
| Butler Springs Christian | Hillsboro | 196 | 0 | 0 |
| Odnr-rocky Fork State Park-#1 | County of Highland | 150 | 0 | 0 |
| Seven Caves | Bainbridge | 125 | 0 | 0 |
| Sinking Springs Elementary Sch | County of Highland | 120 | 0 | 0 |
| Shady Trails Campground | County of Highland | 104 | 0 | 0 |
| Armco Employees Park Assn. | County of Highland | 100 | 0 | 0 |
| Lakeside Restaurant | County of Highland | 100 | 0 | 0 |
| Odot-rest Area 9-43 | County of Highland | 100 | 0 | 0 |
| Mgr,odnr Rocky Fork St Pk | County of Highland | 100 | 0 | 0 |
| Ohio Hist. Soc.-fort Hill-east | County of Highland | 100 | 0 | 0 |
| Ohio Hist. Soc.-fort Hill-so. | County of Highland | 100 | 0 | 0 |
| Odnr-rocky Fork State Park-#5 | County of Highland | 100 | 0 | 0 |
| Odnr-rocky Fork State Park #8 | County of Highland | 100 | 0 | 0 |
| Prin,n.petersburg Elem.school | County of Highland | 100 | 0 | 0 |
| Odnr-paint Creek St. Pk. Pws | Bainbridge | 100 | 0 | 0 |
| Country Corner Market Pws | County of Highland | 100 | 0 | 0 |
| Wanta Linga Restaurant | County of Highland | 100 | 0 | 0 |
| Mgr,lighthouse Mobile Home Pk. | County of Highland | 91 | 0 | 0 |
| Faith And Light Mennonite Church | County of Highland | 90 | 0 | 0 |
| Good Shepherd U B Church Pws | County of Highland | 90 | 0 | 0 |
| Mgr,bay View Moble Home Park | County of Highland | 81 | 0 | 0 |
| Mgr,brushcreek Vineyards | County of Highland | 80 | 0 | 0 |
| Brushcreek Vinyards | Peebles | 80 | 0 | 0 |
| Odnr-rocky Fork State Park-#3 | County of Highland | 80 | 0 | 0 |
| Odnr-rocky Fork State Park-#7 | County of Highland | 80 | 0 | 0 |
| Roselawn Drive In Theater | County of Highland | 80 | 0 | 0 |
| Mgr,mcconnaughey Water Hauling | County of Highland | 75 | 0 | 0 |
| Fall Creek Friends Church | County of Highland | 65 | 0 | 0 |
| Brushcreek Twp Building | County of Highland | 65 | 0 | 0 |
| Grace Brethren Church | Sinking Springs | 60 | 0 | 0 |
| Odot-rest Area 9-43 | County of Highland | 60 | 0 | 0 |
| Rocknoll Nursery Inc. | County of Highland | 50 | 0 | 0 |
| Coonhunters Lodge | County of Highland | 50 | 0 | 0 |
| Marshall Church Of Christ | County of Highland | 50 | 0 | 0 |
| Wardlows Grocery | County of Highland | 50 | 0 | 0 |
| Karnes Market | County of Highland | 50 | 0 | 0 |
| Odnr-rocky Fork St. Pk-shop | County of Highland | 50 | 0 | 0 |
| Armco Park Gun Club | County of Highland | 50 | 0 | 0 |
| Odnr-rocky Fork State Park-#4 | County of Highland | 50 | 0 | 0 |
| United Methodist Church | County of Highland | 50 | 0 | 0 |
| Henry Mobile Home Park | County of Highland | 50 | 0 | 0 |
| Country Home Trailer Park | County of Highland | 50 | 0 | 0 |
| Kountry Korner | Sinking Springs | 50 | 0 | 0 |
| North Bay Cottages And Bait Shop | County of Highland | 50 | 0 | 0 |
| Berryville Bib. Con. Church | County of Highland | 50 | 0 | 0 |
| Ranch Drive In Theater | County of Highland | 50 | 0 | 0 |
| Odot-rest Area 9-20 | County of Highland | 40 | 0 | 0 |
| Odot-rest Area 9-36 | Chillicothe | 40 | 0 | 0 |
| Taloden Woods | Bainbridge | 40 | 0 | 0 |
| Cedar Hill Campground | County of Highland | 40 | 0 | 0 |
| Odnr-rocky Fork St. Pk.-blik. | County of Highland | 40 | 0 | 0 |
| Odot-rest Area-9-26n | Chillicothe | 40 | 0 | 0 |
| Odot-rest Area 9-26s | County of Highland | 40 | 0 | 0 |
| Pricetown Headstart School | County of Highland | 35 | 0 | 0 |
| Kersey Beechwood Food Shop | County of Highland | 33 | 0 | 0 |
| Mgr,dr.d.ravencraft Office | County of Highland | 30 | 0 | 0 |
| Grace Baptist Church Greenfield | County of Highland | 30 | 0 | 0 |
| Higgins Construction | County of Highland | 30 | 0 | 0 |
| Anderson Marine | County of Highland | 30 | 0 | 0 |
| Odot-well 47-f | County of Highland | 30 | 0 | 0 |
| Mgr,smith & Hopkins Lumber Co. | County of Highland | 30 | 0 | 0 |
| Old Country Store | County of Highland | 25 | 0 | 0 |
| Odnr-fallsville Wildlife | County of Highland | 25 | 0 | 0 |
| United Methodist Church | County of Highland | 25 | 0 | 0 |
| Sweetwater Farm | County of Highland | 25 | 0 | 0 |
| Masonic Lodge 365 | Sinking Springs | 12 | 0 | 0 |
| Cox Veneering Company | County of Highland | 10 | 0 | 0 |
| North Fork Marine Sales | Hillsboro | 5 | 0 | 0 |
| Kappys Catering Service | County of Highland | 2 | 0 | 0 |
| Charlies Bait Shop | County of Highland | 2 | 0 | 0 |
| Sexton Used Cars, Inc. | County of Highland | 2 | 0 | 0 |
| Greens Market | County of Highland | 2 | 0 | 0 |
| United Methodist Church | Sinking Springs | 1 | 0 | 0 |