| Business | Phone |
| Gretna City Chief Of Police 200 5th St, Gretna 70053 | (504) 363-1700 |
| Gretna City Finance Accts Pay 2nd St & Huey P Long Aveamp;, Gretna 70053 | (504) 363-1566 |
| Gretna City Finance Cashier 2nd St & Huey P Long Aveamp;, Gretna 70053 | (504) 363-1578 |
| Gretna City Inspection 2nd & Huey P Long Ave 301amp;, Gretna 70053 | (504) 363-1563 |
| Gretna Vehicle Maintenance 32 1st St, Gretna 70053 | (504) 363-1518 |
| Gretna Visitor Ctr Huey P Long Ave At 4th St, Gretna 70053 | (504) 363-1580 |
| Plumbing & Electrical Inspctr 2nd & Huey P Long Aveamp;, Gretna 70053 | (504) 363-1564 |
| Regulatory Officer 2nd & Huey P Long Ave 104amp;, Gretna 70053 | (504) 363-1562 |
| Streets & Drainage Dept 224 4th St, Gretna 70053 | (504) 363-1579 |
| Water Filtration Plant 100 5th St, Gretna 70053 | (504) 363-1540 |