| Business | Phone |
| Dupo Village Sewage Disposal 195 Coulter Rd, East Carondelet 62240 | (618) 286-4100 |
| East Carondelet Village Clerk 950 State St, East Carondelet 62240 | (618) 286-4727 |
| Prairie Du Pont Levee Dist 1327 Davis Street Ferry Rd, East Carondelet 62240 | (618) 286-4112 |