| D. Wilson, La Sandra | Councilwoman, District I | Parish Council | (985) 240-0213 | Email |
| de Castro, Samantha | Deputy Chief Administrative Officer | Parish President | (985) 783-5000 | Email |
| deBruler, Michele | Councilwoman, District VII | Parish Council | (504) 919-9577 | Email |
| deGeneres, David | Wastewater Director | Wastewater | (985) 783-5100 | Email |
| DeSoto, Nicole | Accounting Clerk, United Way of St. Charles | Uncategorized | | |
| Dias, John | Executive Director, United Way of St. Charles | | (985) 331-9063 | Email |
| Diaz, Joan | Director | Community Services | (985) 764-7944 ext. 2001 | Email |
| Dufrene, Jacob | Wastewater Operations Manager | Wastewater | (985) 783-5100 | Email |
| Dufrene, Murray | Wastewater Plant Operator II | Wastewater | (985) 783-5000 | Email |
| Dufrene, Theron P. | District 6 Justice of the Peace | | (504) 250-2979 | Email |
| Dufrene, Thor | Procurement Tech II | Procurement | | Email |
| Dugas, Stacy | Grants Specialist II | Grants | (985) 783-5000 | |
| Duhe, Darrin | Chief Operations Officer | Parish President | (985) 783-5000 | Email |
| Dupre, Kristi | Marketing Development Research Assistant | Economic Development and Tourism | (985) 783-5140 | Email |
| Dussom, Grant M. | Chief Financial Officer | Finance, Parish President | (985) 783-5000 | Email |