We found 36 public water systems that could serve the same population as Humphrey Waterworks (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Grand Prairie Regional Water | Stuttgart | 13,500 | 13 | 12 |
| Stuttgart Waterworks | County of Arkansas | 9,076 | 0 | 7 |
| Dewitt Waterworks | County of Arkansas | 3,294 | 0 | 2 |
| Gillett Water Dept | County of Arkansas | 681 | 0 | 2 |
| Northeast Dewitt Water Assoc | County of Arkansas | 662 | 0 | 8 |
| Almyra Waterworks | County of Arkansas | 406 | 0 | 15 |
| St Charles Waterworks | County of Arkansas | 379 | 0 | 3 |
| North Lagrue Water Assoc | County of Arkansas | 296 | 0 | 11 |
| Jones Grocery & Market | County of Arkansas | 200 | 0 | 0 |
| Shiremans Three Way Groc | County of Arkansas | 200 | 0 | 0 |
| Schwab's Store | County of Arkansas | 200 | 0 | 0 |
| Rags Grocery & Mkt | County of Arkansas | 200 | 0 | 0 |
| Country Store | County of Arkansas | 200 | 0 | 0 |
| Clouds Grocery & Mkt. | County of Arkansas | 200 | 0 | 0 |
| Cajun Hidaway | County of Arkansas | 200 | 0 | 0 |
| Berryman's General Store | County of Arkansas | 200 | 0 | 0 |
| Lodge Corner Grocery | Stuttgart | 200 | 0 | 0 |
| White River Nat Wildlife Ref | County of Arkansas | 100 | 0 | 0 |
| Ark Post National Memorial | County of Arkansas | 100 | 0 | 0 |
| The Wild Goose Store Llc | County of Arkansas | 50 | 0 | 0 |
| Ayers Grocery | County of Arkansas | 35 | 0 | 0 |
| Rush's Bait Shop | County of Arkansas | 30 | 0 | 0 |
| Glacier Alco430 Dewitt | County of Arkansas | 30 | 0 | 0 |
| Rice Branch Experiment Station | Stuttgart | 30 | 0 | 0 |
| White River Natl Wildlife Ref | Dewitt | 30 | 0 | 0 |
| Primo Refill Stuttgart Wal-m102 | County of Arkansas | 30 | 0 | 0 |
| Uscoe Pbw Wilbur Mills Park | County of Arkansas | 25 | 0 | 0 |
| Uscoe Pbw104 Notrebes Point | County of Arkansas | 25 | 0 | 0 |
| O.b. Fish Farm | County of Arkansas | 25 | 0 | 0 |
| Uscoe Pbw103 Dam Site 2 | County of Arkansas | 25 | 0 | 0 |
| Uscoe Pbp105 Lock 2 | County of Arkansas | 25 | 0 | 0 |
| Uscoe Pb108 Moores Bayou | County of Arkansas | 25 | 0 | 0 |
| Uscoe Pbp107 Pendelton Bend | County of Arkansas | 25 | 0 | 0 |
| Fish Farm Experiment Station | County of Arkansas | 25 | 0 | 0 |
| 39th Support Bn Co A | County of Arkansas | 25 | 0 | 0 |
| White River Natwildlife Refhq | County of Arkansas | 25 | 0 | 0 |