| Downtown Business District (DB1) |
| Checkerberry Neighborhood Center (NC1) |
| Historic Neighborhood Center (NC2) |
| Milton Crossroads Marketplace Center (M1) |
| Milton Crossroads Marketplace West (M2) |
| Milton Crossroads Marketplace Municipal/Recreation (M3) |
| Checkerberry Commercial (M4-C) |
| Checkerberry Residential (M4-R) |
| Old Towne Residential/Commercial (M5) |
| Main Street (M6) |
| Interstate Commercial (C1) |
| Light Industrial (I1) |
| General Industrial (I2) |
| Industrial Conservation (I3) |
| Old Towne Residential (R1) |
| Medium Density Residential (R2) |
| Low Density Residential (R3) |
| Transitional Resdential (R4) |
| Agricultural/Rural Residential (R5) |
| Shoreland Residential (R6) |
| Beaverbrook Residential (R7) |
| Forestry/Conservation/Scenic Ridgeline (FC) |
