We found 69 public water systems that could serve the same population as Hancock County Water & Sewer (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Diamondhead Utilities-north | County of Hancock | 11,732 | 0 | 66 |
| City Of Bay St Louis | Bay St Louis | 9,260 | 0 | 67 |
| City Of Waveland | Waveland | 6,508 | 0 | 78 |
| Kiln Utility And Fire District Of Hancoc | County of Hancock | 6,032 | 0 | 68 |
| Standard Dedeaux Water Association | County of Hancock | 5,220 | 24 | 71 |
| Stennis Space Center | County of Hancock | 4,940 | 0 | 71 |
| Hancock County Water & Sewer- Bayside | Bay St Louis | 2,730 | 0 | 0 |
| Pearlington Water And Sewer District | County of Hancock | 1,478 | 0 | 0 |
| Hancock North Central School | Pass Christian | 1,288 | 0 | 0 |
| Jourdan River Shores | County of Hancock | 855 | 0 | 0 |
| Stennis Space Center 9000 Complex | County of Hancock | 727 | 0 | 0 |
| South Hancock Elementary School | County of Hancock | 690 | 0 | 10 |
| White Cypress Lakes | County of Hancock | 518 | 0 | 76 |
| Jordan River Estates Water Co | Kiln | 302 | 0 | 0 |
| Hancock County Welcome Center | County of Hancock | 300 | 0 | 2 |
| Diamondhead Utilites-south | Diamondhead | 300 | 0 | 0 |
| Salmen Scout Reservation | County of Hancock | 250 | 0 | 0 |
| Mvc Weigh Station 515 | County of Hancock | 200 | 0 | 0 |
| Mvc Weigh Station 516 | County of Hancock | 200 | 0 | 0 |
| Uncle Chesters Log Cabin Fish House | Picayune | 200 | 0 | 0 |
| Charles B Murphy School | County of Hancock | 170 | 0 | 0 |
| Oak Harbor | County of Hancock | 165 | 0 | 59 |
| Hancock General Hospital | Bay St Louis | 125 | 0 | 0 |
| Kiln Utility-stennis Airport | County of Hancock | 119 | 0 | 0 |
| Annunciation School | Kiln | 116 | 0 | 0 |
| Scafidis Wheel Inn & Tlr Park | County of Hancock | 100 | 0 | 0 |
| Lafrance Fishing Camp | County of Hancock | 86 | 0 | 0 |
| Port Bienville Ind Park | County of Hancock | 80 | 0 | 0 |
| Leonard Aubert | County of Hancock | 77 | 0 | 0 |
| Bay St Louis Ld Improvement Co | County of Hancock | 75 | 0 | 0 |
| Fun Town Campground | County of Hancock | 73 | 0 | 0 |
| Mcdonald Realty-inc-pinewood | County of Hancock | 70 | 0 | 0 |
| Crown Zellerback | Rolling Fork | 70 | 0 | 0 |
| Brian Morrow | County of Hancock | 70 | 0 | 0 |
| Wimpy Burke | County of Hancock | 65 | 0 | 0 |
| Clermont Harbor | County of Hancock | 62 | 0 | 0 |
| Rufus Cuevas | County of Hancock | 60 | 0 | 0 |
| Richard Brehm | County of Hancock | 60 | 0 | 0 |
| Twin Oaks Trailer Motel | Waveland | 56 | 0 | 0 |
| House Of Catfish | Waveland | 50 | 0 | 0 |
| Greater Mt Zion Methodist Ch | Pearlington | 50 | 0 | 0 |
| Pleasant Hill Water Group | County of Hancock | 50 | 0 | 0 |
| Mr John Ruiz | County of Hancock | 50 | 0 | 0 |
| Stuckeys #48 | Waveland | 50 | 0 | 0 |
| Mcdonald Realty Inc-morgan Pk | County of Hancock | 50 | 0 | 0 |
| Little Providence Baptist Ch | Picayune | 35 | 0 | 0 |
| Kiln Memorial Vfw Post 6285 | Kiln | 35 | 0 | 0 |
| Mvc Weigh Station #527 | Pearlington | 35 | 0 | 0 |
| Scenic Trails Inc | County of Hancock | 35 | 0 | 0 |
| The Real Grill | Perkinston | 35 | 0 | 0 |
| Lafrance Fishing Camp | Bay St. Louis | 32 | 0 | 0 |
| The Oaklands Restaurant | Bay St Louis | 30 | 0 | 0 |
| Sunrise Mobile Home Park | County of Hancock | 30 | 0 | 0 |
| Granny's | County of Hancock | 30 | 0 | 0 |
| Bar B-q House | Kiln | 30 | 0 | 0 |
| Mcleod Park | Bay St. Louis | 30 | 0 | 0 |
| Mayberrys Cafe | Poplarville | 30 | 0 | 0 |
| Infinity Science Center | County of Hancock | 26 | 0 | 0 |
| Gene Bennett | Kiln | 26 | 0 | 0 |
| K & K Cafe | Waveland | 25 | 0 | 0 |
| Shaws Catfish House | Perkinston | 25 | 0 | 0 |
| Bayside Motel | Waveland | 25 | 0 | 0 |
| John Benigno | County of Hancock | 25 | 0 | 0 |
| R D Duncan | County of Hancock | 25 | 0 | 0 |
| J C Monk Water System | Bay St Louis | 25 | 0 | 0 |
| John Zecckine | Bay St Louis | 25 | 0 | 0 |
| Ashley Manor Motel And Rv Pk | Bay St. Louis | 10 | 0 | 0 |
| Hancua-pearlington | County of Hancock | 0 | 0 | 0 |
| Hancock County Utility Authority | County of Hancock | 0 | 0 | 0 |