| Business | Phone |
| Denham Spring Streets Dept 600 Bowman St A, Denham Springs 70726 | (225) 667-8352 |
| Denham Springs Mayor's Office 941 Government St, Denham Springs 70726 | (225) 665-8121 |
| Denham Springs Animal Control 447 Lamm St, Denham Springs 70726 | (225) 664-4472 |
| Denham Springs Building Ofc 941 Government St, Denham Springs 70726 | (225) 667-8326 |
| Denham Springs City Garage 401 N Railroad Ave, Denham Springs 70726 | (225) 667-8349 |
| Denham Springs Gas Water 401 N Railroad Ave, Denham Springs 70726 | (225) 667-8346 |
| Denham Springs Sewer Dept Svc 9150 Forrest Delatte Rd, Denham Springs 70726 | (225) 667-1227 |
| Denham Springs Waste Water Lab 9300 Forrest Delatte Rd, Denham Springs 70726 | (225) 667-1227 |
| Port Vincent Clerks Office 18235 La Highway 16, Denham Springs 70726 | (225) 698-9891 |