Baltimore County GIS Portal (Maryland)

Search for Baltimore County, MD GIS maps. A GIS map search can provide information like county maps, town maps, city maps, local maps, property maps, parcel maps, plat maps, public property, property tax assessments, flood zones, zoning boundaries, geographic information, historical maps, and property tax information.


Baltimore County Assessor Offices are charged with determining the value of taxable property in their county or local area in order to calculate Baltimore County property taxes. In addition to property values, Assessors maintain detailed county and local maps, including Geographic Information Science (GIS) maps. These Baltimore County GIS maps can show public property, parks, property divisions, and roads, as well as property assessments and property taxes in Baltimore County, Maryland. These maps can also include place names, bodies of water, flood zones, property zones, and other geographic information. Some Assessors may keep historic GIS maps that include historic property tax assessments. These maps may be available on the Baltimore County Assessor Office website.

Baltimore County Assessment Office Towson MD 300 East Joppa Road 21286 410-512-4900


Baltimore County Clerk Offices maintain public records for a county or local government, which includes GIS maps. These maps provide detailed information on the area, including Baltimore County property maps that show boundaries, public property, property divisions, and in some cases, population information in Baltimore County, Maryland. They may also include property value assessments and property tax rates. Baltimore County GIS maps can show place names, bodies of water, zoning information, flood zones, and other geographic information. Clerks may also have historic GIS maps from the USGS or other organizations, and these maps are often available online through the Clerk Office website.

Baltimore County Clerk Towson MD 401 Bosley Avenue 21204 410-887-2601