Zoning in St. Mary's County
73 zoning codes on the assessor file.
| Zone | Parcels | Median lot | Main use |
|---|---|---|---|
| RPD | 19,190 | 2.0 ac | Residential |
| RNC | 12,326 | 0.53 ac | Residential |
| RL | 9,633 | 0.25 ac | Residential |
| RH | 758 | 0.07 ac | Town House |
| RMX | 511 | 0.37 ac | Residential |
| TMX | 484 | 0.85 ac | Commercial |
| PUD | 405 | 0.16 ac | Residential |
| CMX | 326 | 0.91 ac | Commercial |
| VMX | 317 | 1.15 ac | Residential |
| PDR | 316 | 0.21 ac | Residential |
| R-SF | 274 | 0.34 ac | Residential |
| PUD5 | 258 | 0.04 ac | Town House |
| R-1 | 234 | 1.05 ac | Residential |
| DMX | 230 | 0.72 ac | Commercial |
| PUDM | 183 | 0.22 ac | Residential |
| PUD-M | 144 | 0.21 ac | Residential |
| RCL | 130 | 1.03 ac | Commercial |
| R-MF | 115 | 0.28 ac | Residential |
| OBP | 90 | 2.8 ac | Commercial |
| AR | 89 | 2.23 ac | Residential |
| C-G | 88 | 0.22 ac | Commercial |
| PUDR | 85 | 0.35 ac | Residential |
| CM | 74 | 0.45 ac | Commercial |
| I | 70 | 2.31 ac | Industrial |
| RSC | 58 | 1.0 ac | Residential |
| PUD-5 | 56 | 0.65 ac | Residential |
| I-1 | 56 | 1.23 ac | Industrial |
| PUD35 | 52 | 0.16 ac | Residential |
| PUD 5 | 48 | 0.27 ac | Residential |
| CC | 43 | 1.34 ac | Commercial |
| C-O | 36 | 0.11 ac | Commercial Condominium |
| i | 27 | 1.0 ac | Residential |
| RTC | 26 | 1.0 ac | Residential |
| CH | 23 | 1.13 ac | Commercial |
| C-H | 16 | 0.78 ac | Commercial |
| C | 15 | 0.71 ac | Commercial |
| PRD | 13 | 10.77 ac | Agricultural |
| PUM | 11 | 0.17 ac | Residential |
| AR-2 | 11 | 7.04 ac | Residential |
| RSF | 9 | 0.4 ac | Residential |
| CO | 9 | 0.03 ac | Commercial Condominium |
| I-O | 9 | 3.52 ac | Exempt Commercial |
| CG | 8 | 0.82 ac | Commercial |
| RVC | 6 | 1.48 ac | Residential |
| C-1 | 6 | 1.25 ac | Commercial |
| R-L | 6 | 0.41 ac | Residential |
| RMF | 5 | 1.13 ac | Apartments |
| CVC | 4 | 1.97 ac | Commercial |
| I1 | 4 | 3.66 ac | Commercial |
| RCA | 3 | 2.13 ac | Residential |
| CB | 3 | 0.84 ac | Commercial |
| C-M | 3 | 1.0 ac | Exempt Commercial |
| PUD-X | 3 | 1.4 ac | Exempt Commercial |
| R SF | 2 | 8.69 ac | Residential |
| LDA | 2 | 1.05 ac | Residential |
| PDR35 | 2 | 0.33 ac | Residential |
| TH | 2 | 0.09 ac | Town House |
| R1 | 1 | 0.26 ac | Exempt |
| C-0 | 1 | 0.44 ac | Commercial |
| PUB-5 | 1 | 0.63 ac | Residential |
| RT | 1 | 4.47 ac | Residential |
| AC | 1 | 0.4 ac | Residential |
| CL | 1 | 1.92 ac | Commercial |
| IM | 1 | 0.82 ac | Residential |
| DMXC | 1 | 16.74 ac | Commercial |
| PUDCC | 1 | 8.63 ac | Apartments |
| PDR-5 | 1 | 2.75 ac | Exempt Commercial |
| 92 | 1 | 0.04 ac | Town House |
| PDIP | 1 | 0.84 ac | Exempt Commercial |
| PUDI | 1 | 0.2 ac | Residential |
| PUDCP | 1 | 8.5 ac | Exempt Commercial |
| PUDR2 | 1 | 0.0 ac | Residential |
| RLN | 1 | 0.02 ac | Commercial |