| Business | Phone |
| Arnold Line Water Assoc 4901 W 4th St, Hattiesburg 39402 | (601) 264-7111 |
| Barrontown Utility Assn 101 Dogwood Ln, Hattiesburg 39402 | (601) 544-3553 |
| Brooklyn Utility Assn 210 Old Highway 49 W, Hattiesburg 39401 | (601) 582-1948 |
| Dixie Water Assn 930 Bonhomie Rd, Hattiesburg 39401 | (601) 582-5039 |
| Hattiesburg Water Plant 900 James St, Hattiesburg 39401 | (601) 545-4635 |
| Lamar Park Water & Sewer Assn 2137 Oak Grove Rd, Hattiesburg 39402 | (601) 264-5933 |
| Mc Laurin Water 283 Carter Rd, Hattiesburg 39401 | (601) 545-2292 |
| West Lamar Water Assn 2716 Highway 589, Hattiesburg 39402 | (601) 264-6305 |
| Rawls Springs Utility District 39 Archie Smith Rd, Hattiesburg 39402 | (601) 268-2248 |