Harford County Zoning (244)
| AG |
| B1 |
| B2 |
| B3 |
| CI |
| GI |
| LI |
| R1 |
| R2 |
| R3 |
| R4 |
| RO |
| ROW |
| RR |
| RR* |
| VB |
| VR |
Baltimore County Zoning (238)
| BL |
| BLR |
| BM |
| BMB |
| BR |
| CB |
| DR 1 |
| DR 10.5 |
| DR 16 |
| DR 2 |
| DR 3.5 |
| DR 5.5 |
| MH |
| ML |
| MLR |
| MR |
| O 3 |
| OR 1 |
| OR 2 |
| OT |
| RAE 1 |
| RAE 2 |
| RC 2 |
| RC 20 |
| RC 3 |
| RC 4 |
| RC 5 |
| RC 50 |
| RC 6 |
| RC 7 |
| RC 8 |
| RCC |
| RO |
| ROA |
| SE |
Carroll County Zoning (232)
| Agriculture |
| C-1 |
| C-2 |
| C-3 |
| Conservation |
| I-1 |
| I-2 |
| R-10,000 |
| R-20,000 |
| R-40,000 |
MS4 Boundaries (44)
DNR Rural Legacy Areas (19)
MDE Point Source Discharges (17)
MDE Significant Waste Water Treatment Plants (20)
MD Public Schools (15)
MDOT SHA Maintained Roads (33)
Storm Water Management Facilities (36)
Harford County Parcels (23)
Carrol County Parcels (14)
Baltimore County Parcels (9)
MDP 5Digit ZIP Codes (13)
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