Maryland · All counties
Maryland Parcel Maps & County GIS Viewers
From Chesapeake Bay shoreline lots to western mountain tracts, this Maryland hub indexes official county GIS viewers for tax parcel research.
We link out — we do not host parcels. Platbookmapper does not draw lot lines, embed county FeatureServers, or redistribute tax-parcel geometry for Maryland. Our role is to connect you to the official county GIS / parcel viewer that maintains the property information. Not a survey product.
How to search Maryland county parcels
We do not host Maryland parcels. Pick a county, open the official GIS, and search by account/parcel ID, address, or owner. Bay counties frequently layer critical-area and flood information; suburban DC-adjacent counties offer dense subdivision fabrics; western counties show larger rural tracts.
Maryland uses a mix of historic metes-and-bounds and modern plats rather than a full PLSS grid. Parcel account numbers are county-specific. Independent Baltimore City has its own map stack—do not confuse it with Baltimore County. Always land on the official county or city domain before trusting attributes.
Tax maps support planning. Legal boundaries need recorded plats or a licensed surveyor.
Baltimore City versus Baltimore County is the classic mix-up—match the tax bill header before searching. Critical-area hatching near the Bay is planning context, not a new lot line. We link out; we do not host Maryland parcels.
Bay Bridge–area researchers should confirm county versus city jurisdiction before searching. Once the official viewer loads, parcel ID beats a fuzzy address in waterfront subdivisions.
Plat and parcel guides
These articles cover plat maps, parcel maps, and property lines for this state. The list below opens the official local GIS viewer.
All Maryland counties and Baltimore City (24)
24 with curated official GIS links; remaining counties use the verify path via the map.
- Allegany County
- Anne Arundel County
- Baltimore City
- Baltimore County
- Calvert County
- Caroline County
- Carroll County
- Cecil County
- Charles County
- Dorchester County
- Frederick County
- Garrett County
- Harford County
- Howard County
- Kent County
- Montgomery County
- Prince George's County
- Queen Anne's County
- Somerset County
- St. Mary's County
- Talbot County
- Washington County
- Wicomico County
- Worcester County
Related
- All state hubs (A–Z)
- Nationwide county GIS map
- Parcel map & property search guides
- How this directory works
Frequently asked questions
How do I find a Maryland county parcel map?
Pick your county on this Maryland hub (or on the national Platbookmapper map), then open the official GIS / parcel viewer link. Each county maintains its own app — we link out and do not host parcels.
Are Maryland online parcel maps survey-grade?
No. County GIS parcels are tax and planning layers. For legal boundaries, use a recorded plat or hire a licensed surveyor.
Why do some Maryland counties say Verify via map?
We only mark a county Listed when we have a curated direct interactive viewer URL. Verify counties still open from the national map with the best available outbound link — always confirm it is the official local source.
Does Platbookmapper draw property lot lines?
No. We do not host or redraw parcel geometry. Our product is a USA → county → official GIS link directory so you can open the local interactive map in a new tab.