Southern Mississippi Planning & Development District Share: Economic Development/Regional Southern Mississippi Planning & Development District Visit Website 10441 Corporate Drive Ste. 1 Gulfport, MS 39503 (601) 545-2169 Rep Info Map Whom to Contact Emlyn Jackson Manager 10441 Corporate Drive Ste. 1 Gulfport, MS 39503 Phone: (601) 545-2169 Send an Email What's Nearby? Distance: 5 10 15 20 25 50 mi.