We found 64 public water systems that could serve the same population as St Lucas Church (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Oelwein Municipal Water Works | Oelwein | 6,415 | 0 | 5 |
| West Union Water Supply | West Union | 2,566 | 0 | 3 |
| Fayette Water Supply | Fayette | 1,338 | 0 | 0 |
| K Mart | Oelwein | 875 | 0 | 0 |
| Elgin Municipal Water Supply | Elgin | 690 | 0 | 6 |
| North Fayette Valley Community School | Elgin | 675 | 0 | 14 |
| Clermont Water Supply | Clermont | 632 | 0 | 28 |
| Maynard Water Supply | Maynard | 518 | 0 | 13 |
| Montauk Historical Site | Clermont | 462 | 0 | 11 |
| Hawkeye Water Supply | Hawkeye | 449 | 0 | 2 |
| Arlington Water Supply | Arlington | 429 | 0 | 1 |
| Wadena Water System | Wadena | 262 | 0 | 11 |
| Waucoma Water Supply | Waucoma | 257 | 0 | 4 |
| Westgate Water Supply | Westgate | 211 | 0 | 15 |
| White House Supper Club | Saint Lucas | 131 | 0 | 2 |
| Randalia Elementary School | County of Fayette | 125 | 0 | 0 |
| Gilbertson Park | Elgin | 117 | 0 | 0 |
| Oelwein City Park | Oelwein | 102 | 0 | 0 |
| Lakeview Mobile Home Court | Oelwein | 100 | 0 | 0 |
| Elgin Municipal Ws-south | Elgin | 100 | 0 | 0 |
| Volga River Rec. Area | Fayette | 100 | 0 | 0 |
| Joan & Al's Supper Club | County of Fayette | 85 | 0 | 0 |
| Wadena Community Grade School | Wadena | 85 | 0 | 0 |
| Randalia Water Supply | Randalia | 84 | 0 | 0 |
| United Methodist Church | County of Fayette | 80 | 0 | 0 |
| Prairie View Management Inc. | County of Fayette | 80 | 0 | 0 |
| Oelwein Drive In Theatre | County of Fayette | 79 | 0 | 0 |
| Stockman's Inn | County of Fayette | 75 | 0 | 0 |
| St. Luke Church | Saint Lucas | 72 | 0 | 0 |
| Associated Milk Producers-arlington | Arlington | 70 | 0 | 0 |
| Gilbertson Park Nature Center | Elgin | 67 | 0 | 0 |
| Lakeshore Rv Resort & Campground | Oelwein | 65 | 0 | 0 |
| Maryville Cafe | County of Fayette | 62 | 0 | 0 |
| Big Rock Country Club | Fayette | 52 | 0 | 0 |
| The Bears Den Llc | Oran | 51 | 0 | 0 |
| Lorraine's Cafe | County of Fayette | 50 | 0 | 0 |
| The Corner | County of Fayette | 50 | 0 | 0 |
| Edgewater Golf Course | Oelwein | 41 | 0 | 0 |
| Hillandale Iowa Ii Llp | West Union | 35 | 0 | 0 |
| Goeken Park | Fayette | 32 | 0 | 0 |
| Phat Cats Roadhouse | West Union | 31 | 0 | 0 |
| Gouldsburg Park | Fayette | 30 | 0 | 0 |
| Citys Edge Golf And Grill | West Union | 30 | 0 | 0 |
| Hootys | West Union | 29 | 0 | 0 |
| Hickory Grove (golf Course) | Oelwein | 28 | 0 | 0 |
| Park View Motel | Oelwein | 27 | 0 | 0 |
| Saint Lucas Historical Society | Saint Lucas | 27 | 0 | 0 |
| River Valley Campground | Wadena | 27 | 0 | 0 |
| Duttons Cave Pk-fayette Conser | County of Fayette | 25 | 0 | 0 |
| Downing Park | County of Fayette | 25 | 0 | 0 |
| Twin Bridge Pk-fayette Conserv | County of Fayette | 25 | 0 | 0 |
| Downing Pk-fayette Conservatio | County of Fayette | 25 | 0 | 0 |
| Gouldsbury County Park | County of Fayette | 25 | 0 | 0 |
| Twin Bridges County Park | County of Fayette | 25 | 0 | 0 |
| Barneys | County of Fayette | 25 | 0 | 0 |
| Baumler's Country Club Estates | West Union | 25 | 0 | 0 |
| Alber's Plowboy Club | County of Fayette | 25 | 0 | 0 |
| Corner Auction | County of Fayette | 25 | 0 | 0 |
| The Barn | County of Fayette | 25 | 0 | 0 |
| Kuennen Grocery & Tavern | County of Fayette | 25 | 0 | 0 |
| Meadow Mist Motel | Oelwein | 25 | 0 | 0 |
| Klock's Island | County of Fayette | 25 | 0 | 0 |
| Dairy Inn | County of Fayette | 25 | 0 | 0 |
| Alpha Tavern | County of Fayette | 25 | 0 | 0 |