We found 27 public water systems in Brown county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Brown County Rural Water | Ripley | 25,068 | 18 | 79 |
| Mount Orab Village Pws | Mount Orab | 6,607 | 27 | 37 |
| Georgetown Village Pws | County of Brown | 4,331 | 0 | 1 |
| Brown Co.rural Water Assn-west | County of Brown | 4,235 | 0 | 0 |
| Georgetown Water Department Pws | Georgetown | 3,467 | 0 | 0 |
| Mgr.brown Co Rural Water Assn | County of Brown | 2,310 | 0 | 0 |
| Waynoka Regional Water And Sewer Dist | County of Brown | 1,860 | 0 | 24 |
| Ripley Village Pws | County of Brown | 1,725 | 0 | 3 |
| Aberdeen Village | County of Brown | 1,638 | 0 | 0 |
| Lake Lorelei Regional Water Pws | Fayetteville | 1,392 | 0 | 0 |
| Mgr.brown Co. Rural Water Assn | County of Brown | 1,312 | 0 | 0 |
| Ripley-union Rural Water Pws | County of Brown | 1,300 | 0 | 4 |
| Hamersville Village Pws | County of Brown | 925 | 0 | 0 |
| Supt,russellville Water Dept. | Russellville | 900 | 0 | 0 |
| Sardinia Village Pws | County of Brown | 850 | 0 | 59 |
| Brown County Rwa/ripley Div. | County of Brown | 674 | 0 | 0 |
| Fayetteville Village Pws | County of Brown | 500 | 0 | 44 |
| Higginsport, Village Of | Georgetown | 350 | 0 | 0 |
| Chief Logan Gap Koa Camp | County of Brown | 240 | 0 | 0 |
| Brown Co.r.water-georgetown | County of Brown | 135 | 0 | 0 |
| Mgr,v.adamson Water Hauler | County of Brown | 100 | 0 | 0 |
| Aberdeen East | Ripley | 96 | 0 | 0 |
| Brown Co.rwa/ripley-union Div. | County of Brown | 80 | 0 | 0 |
| Odot-rest Area 9-19 | County of Brown | 75 | 0 | 0 |
| Daniel Boone Tavern | County of Brown | 50 | 0 | 0 |
| Prin,bro Cnty Sch.mental Retrd | County of Brown | 50 | 0 | 0 |
| St. Martin Village Pws | Saint Martin | 33 | 0 | 0 |