We found 17 public water systems that could serve the same population as Il American-hardin County (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Rosiclare | Rosiclare | 1,387 | 0 | 41 |
| Hardin County Water District No.1 | County of Hardin | 871 | 0 | 49 |
| Cave-in-rock | Cave In Rock | 318 | 0 | 29 |
| Elizabethtown | Elizabethtown | 299 | 0 | 92 |
| Hardin Cnty Pblc Work Prgm | Unspec Pl In Co | 200 | 0 | 0 |
| Sidney Haney Dogwood Hollow | County of Hardin | 75 | 0 | 0 |
| Sidney Haney Dogwood Hollow | County of Hardin | 75 | 0 | 0 |
| Lafarge Aggregates South East | County of Hardin | 35 | 0 | 0 |
| Usfs Illinois Iron Furnace | County of Hardin | 30 | 0 | 0 |
| Allied Chemical | County of Hardin | 25 | 0 | 0 |
| Cave-in-rock State Park | County of Hardin | 25 | 0 | 0 |
| Kountry Kitchen | County of Hardin | 25 | 0 | 0 |
| Camp Kadiz | County of Hardin | 25 | 0 | 0 |
| Kaskaskia Ycc Camp | County of Hardin | 25 | 0 | 0 |
| Usfs Tower Rock Campground | County of Hardin | 25 | 0 | 0 |
| Country Cookin' Smorgasbord | County of Hardin | 25 | 0 | 0 |
| Cave In Rock Stt Pk | Unspec Pl In Co | 25 | 0 | 0 |