We found 75 public water systems that could serve the same population as Tri-county Country Club (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Hamilton | Hamilton | 2,951 | 0 | 16 |
| Carthage | County of Hancock | 2,605 | 0 | 49 |
| Nauvoo | Nauvoo | 1,737 | 0 | 89 |
| Warsaw | Warsaw | 1,607 | 0 | 31 |
| Laharpe | La Harpe | 1,235 | 0 | 30 |
| Dallas City | Dallas City | 945 | 0 | 3 |
| Augusta | Augusta | 587 | 0 | 8 |
| Plymouth | Plymouth | 505 | 0 | 3 |
| Bowen | Bowen | 494 | 0 | 19 |
| Camp Eastman Surface Water | County of Hancock | 350 | 0 | 0 |
| Camp Eastman | County of Hancock | 350 | 0 | 0 |
| West Point | West Point | 248 | 0 | 35 |
| County of Hancock | 180 | 0 | 0 | |
| Elvaston Middle School | County of Hancock | 180 | 0 | 0 |
| Elvaston | Elvaston | 165 | 0 | 10 |
| Lamoine Christian Service | County of Hancock | 140 | 0 | 0 |
| Union Douglas Elementry School | County of Hancock | 130 | 0 | 0 |
| Union Douglas Elem School | County of Hancock | 130 | 0 | 0 |
| Great River Road Golf Course | County of Hancock | 125 | 0 | 0 |
| Peacock Inn | County of Hancock | 75 | 0 | 0 |
| Home Port | County of Hancock | 75 | 0 | 0 |
| Sutter Elementary School | County of Hancock | 70 | 0 | 0 |
| County of Hancock | 70 | 0 | 0 | |
| Lakeview Club | County of Hancock | 50 | 0 | 0 |
| Mosley's Corner Store | County of Hancock | 40 | 0 | 0 |
| Ferris Elem School | County of Hancock | 30 | 0 | 0 |
| Ferris Elementary School | County of Hancock | 30 | 0 | 0 |
| Leisureland Mhp | Pontoosuc Twp | 27 | 0 | 0 |
| Denver Cafe | County of Hancock | 25 | 0 | 0 |
| Twilite Club | County of Hancock | 25 | 0 | 0 |
| Wiedmeyer Grocery | County of Hancock | 25 | 0 | 0 |
| Schrader Grocery | County of Hancock | 25 | 0 | 0 |
| Scotts Store | County of Hancock | 25 | 0 | 0 |
| Fleming Tavern | County of Hancock | 25 | 0 | 0 |
| Welcome Inn | County of Hancock | 25 | 0 | 0 |
| Corner Store | County of Hancock | 25 | 0 | 0 |
| Lake Linda | County of Hancock | 25 | 0 | 0 |
| Deer Run Campground | County of Hancock | 25 | 0 | 0 |
| Breezewood Campground | County of Hancock | 25 | 0 | 0 |
| Prairie Winds | County of Hancock | 25 | 0 | 0 |
| Mariah Country Club | County of Hancock | 25 | 0 | 0 |
| Thomas Family Campground | County of Hancock | 25 | 0 | 0 |
| Ed & Marge Lunch & Grocery | County of Hancock | 25 | 0 | 0 |
| Haighs Fish Market | County of Hancock | 25 | 0 | 0 |
| Biz's Camping & Fishing | County of Hancock | 25 | 0 | 0 |
| Nauvoo Milk Products Inc | County of Hancock | 25 | 0 | 0 |
| Deer Run Campground | County of Hancock | 25 | 0 | 0 |
| Ed & Marge Lunch & Grocery | County of Hancock | 25 | 0 | 0 |
| Deer Run Campground | County of Hancock | 25 | 0 | 0 |
| Haighs Fish Market | County of Hancock | 25 | 0 | 0 |
| Nauvoo Milk Products Inc | County of Hancock | 25 | 0 | 0 |
| Tri-county Country Club | County of Hancock | 25 | 0 | 0 |
| Breezewood Campground | County of Hancock | 25 | 0 | 0 |
| WYEKNOT | County of Hancock | 25 | 0 | 0 |
| Handy Mkt | County of Hancock | 25 | 0 | 0 |
| Nauvoo Stt Pk | Unspec Pl In Co | 25 | 0 | 0 |
| Wiedmeyer Grocery | County of Hancock | 25 | 0 | 0 |
| Schrader Grocery | County of Hancock | 25 | 0 | 0 |
| Scotts Store | County of Hancock | 25 | 0 | 0 |
| Fatty's Bar And Grill | County of Hancock | 25 | 0 | 0 |
| The Office | County of Hancock | 25 | 0 | 0 |
| Corner Store | County of Hancock | 25 | 0 | 0 |
| Prairie Winds Motel | County of Hancock | 25 | 0 | 0 |
| Bill Rampley | County of Hancock | 25 | 0 | 0 |
| Handy Mkt | County of Hancock | 25 | 0 | 0 |
| Jack And Jill Vending Machine | County of Hancock | 25 | 0 | 0 |
| Ducks Food Vending Machine | County of Hancock | 25 | 0 | 0 |
| Six's Cafe | County of Hancock | 25 | 0 | 0 |
| Wagon Wheel Lounge | County of Hancock | 25 | 0 | 0 |
| Larry Pilkington | County of Hancock | 25 | 0 | 0 |
| Mary Schamberger Director | County of Hancock | 25 | 0 | 0 |
| County Market 287 Carthage | County of Hancock | 25 | 0 | 0 |
| Camp Eastman | County of Hancock | 25 | 0 | 0 |
| Lamoine Christian Service Camp | County of Hancock | 25 | 0 | 0 |
| WYE KNOT | County of Hancock | 25 | 0 | 0 |