We found 26 public water systems in Union county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| City Of New Albany | New Albany | 8,500 | 35 | 70 |
| Wallerville Water Association | County of Union | 3,012 | 0 | 94 |
| Blue Springs W/a | County of Union | 3,000 | 0 | 103 |
| Keownville Rural Water Assn | County of Union | 2,492 | 0 | 76 |
| Ingomar Water Association | County of Union | 2,346 | 0 | 77 |
| Hwy 30 West Water Association | County of Union | 1,858 | 0 | 74 |
| Town Of Myrtle | County of Union | 1,505 | 0 | 74 |
| Mud Creek Water Association #4 | County of Union | 1,045 | 0 | 77 |
| City Of New Albany (rural) | County of Union | 1,020 | 0 | 0 |
| North Haven Water Association | County of Union | 989 | 0 | 68 |
| East Union School | New Albany | 850 | 0 | 0 |
| Alpine Water Association | County of Union | 840 | 0 | 72 |
| Blue Springs W/a #2-ellistown | County of Union | 815 | 0 | 0 |
| West Union School | New Albany | 550 | 0 | 0 |
| Ingomar School | New Albany | 500 | 0 | 0 |
| Denton Mills Inc. | New Albany | 500 | 0 | 0 |
| Piper Industries | New Albany | 420 | 0 | 0 |
| Master-bilt Products | County of Union | 400 | 0 | 13 |
| Bethlehem Water Association | County of Union | 332 | 0 | 4 |
| Newport Furniture Company, Inc | County of Union | 167 | 0 | 0 |
| Lake Arrowhead | County of Union | 105 | 0 | 0 |
| Laher Spring And Electric Car | New Albany | 90 | 0 | 0 |
| Ertel Mfg Corp | New Albany | 75 | 0 | 0 |
| Mississippi Chemical Corp. | New Albany | 32 | 0 | 0 |
| Mesker Steel Inc | New Albany | 25 | 0 | 0 |
| Myrtle School | Myrtle | 25 | 0 | 0 |