Licensed onsite wastewater professionals in Alabama
Alabama’s roster of individually licensed onsite wastewater professionals covers 1,583 licensed people across 65 counties. Pick a county to see who is based there.
Counties with the most licensed onsite wastewater professionals
- Jefferson County83
- Madison County76
- Mobile County66
- Calhoun County64
- Cullman County59
- Lee County54
- Elmore County52
- Limestone County52
- Baldwin County51
- DeKalb County51
- Marshall County46
- Tuscaloosa County46
- Morgan County40
- Lauderdale County37
- Etowah County36
Every county with licensed onsite wastewater professionals
- Autauga29
- Baldwin51
- Barbour9
- Bibb11
- Blount35
- Bullock3
- Butler3
- Calhoun64
- Chambers19
- Cherokee22
- Chilton29
- Choctaw9
- Clarke13
- Clay8
- Cleburne12
- Coffee14
- Colbert27
- Conecuh8
- Coosa4
- Covington10
- Crenshaw9
- Cullman59
- Dale6
- Dallas10
- DeKalb51
- Elmore52
- Escambia35
- Etowah36
- Fayette12
- Franklin11
- Geneva10
- Greene
- Hale8
- Henry4
- Houston32
- Jackson25
- Jefferson83
- Lamar8
- Lauderdale37
- Lawrence16
- Lee54
- Limestone52
- Lowndes8
- Macon5
- Madison76
- Marengo6
- Marion20
- Marshall46
- Mobile66
- Monroe3
- Montgomery31
- Morgan40
- Perry
- Pickens8
- Pike6
- Randolph17
- Russell27
- Shelby31
- St. Clair35
- Sumter2
- Talladega31
- Tallapoosa26
- Tuscaloosa46
- Walker22
- Washington12
- Wilcox6
- Winston19
Where the roster is filed, and where the work happens
These records are organised by the address on the licence, and that address is not a service area. A Alabama licence is granted by Alabama AOWB and is valid across the state — the county tells you where the person is, not the limit of where they will go.
In practice a rural county showing two licensed onsite wastewater professionals is rarely the real choice set. Every county page here lists its neighbours for exactly that reason.
Records as published August 26, 2026.