| AIC - Airport Commercial District |
| C1 - Neighborhood Business C-1 District |
| C2 - Neighborhood Business C-2 District |
| C3 - General Business C-3 District |
| C4 - Highway Business C-4 District |
| C5 - Commercial Recreation C-5 District |
| CIP - Commercial Industrial Park District |
| HI - Heavy Industry District |
| LI - Light Industry District |
| M - Medical District |
| M2 - Medical 2 District |
| RPC - Research Park Commercial District |