Digital Products

Frederick County GIS distributes countywide base maps and orthophotography and you can find the detailed information in this page. In addition to digital products in CD or DVD format that are available for purchase, Frederick County GIS now offer a free GIS data download service. GIS Base Data, Orthophotography, Contour-Planimetric Data, and most recently Parcel Data, are all available in this download service. Help for using our download system and recommended free desktop software to view our GIS data is available by clicking on either of the following document links: (PDF / HMTL).


While efforts have been made to ensure the accuracy of this data, Frederick County accepts no liability or responsibility for errors, omissions, or positional inaccuracies in the content of this data. Reliance on this data is at the risk of the user. This data is for illustration purposes only and should not be used for surveying, engineering, or site-specific analysis.

GIS Base Data

The GIS Base Data includes core map layers such as county boundary, municipal boundaries, place names, road centerlines and zoning in shapefile format. Shapefile is a vector file format used in ArcGIS by ESRIexternal link.

Countywide Base Data on CD: $200

Base Data Download: Free

Examples of countywide base data

GIS Base Data Layer Inventory (PDF)

Details include: data set, layer, last date updated, data creator, data maintainer, and description.

list of GIS Base Data Show / Hide the details

The updated Comprehensive Plan, Planning and Zoning, and Water and Sewer data is now available.

  • Agricultural Preservation
  • Comprehensive Plan
  • Control
  • Emergency
  • Hydrography
  • Index Grids
  • Land Cover
  • Parcels
  • Planning and Zoning
  • Points of Interest
  • Political Features
  • Recreation
  • Schools
  • Transportation
  • Water and Sewer
  • Zipcodes
  • Agricultural Preservation
    • County Held
    • Critical Farms
    • Farms
    • FFP
    • IPP
    • ISTEA
    • MALPF Districts
    • MALPF Easements
    • MET
    • Rural Legacy
  • Comprehensive Plan
    • Community Facilities
    • Community Growth Boundaries
    • Comp Plan Designations
    • Highway Plan
  • Control
    • Control
  • Emergency
    • Fire Stations
    • Hospitals
    • Police Stations
  • Hydrography
    • Catchments
    • Catchments Clip
    • Dams
    • Feeder Streams
    • Rivers and Lakes
    • Streams
    • Subwatersheds
    • Subwatersheds Clip
    • Watersheds
    • Watersheds Clip
  • Index Grids
    • Ortho Grid
    • Ortho Grid 2005
    • Ortho Grid 2007
    • Tax Grid
    • Tax Grid Towns
    • Tax Subgrid
  • Land Cover
    • Forest
  • Parcels
    • Parcels
    • MultiUnit Relate table
  • Planning and Zoning
    • Planning Regions
    • Zoning
  • Points of Interest
    • Golf Courses
    • Government Facilities
    • Hotels
    • Library
    • Places of Worship
    • Post Office
    • Tourism
      • Arts
      • Covered Bridges
      • Culture and Religion
      • Historical
      • Museums
      • Nature
      • Recreation
  • Political Features
    • County
    • Election
    • Election Districts
    • Municipalities
    • Place Names
    • Polls
  • Recreation
    • Parks All
    • Parks
    • Park Boundaries
    • Park Features
  • Schools
    • Schools
    • School Property
    • Elementary School Districts
    • Middle School Districts
    • High School Districts
  • Transportation
    • Bridges
    • Frederick Municipal Airport
    • Highway Districts
    • MARC Rail Lines
    • MARC Rail Stations
    • Railroads
    • Railroads Historic
    • Roads
    • Traffic Counts
  • Water and Sewer
    • Sewer Service Areas Frederick City
    • Sewer Service Areas Frederick County
    • Water Service Areas Frederick City
    • Water Service Areas Frederick County
  • Zipcodes
    • Zipcodes

If you are interested in purchasing the GIS Base Data, check ordering information.
If you are interested in downloading the GIS Base Data, click here.

If you need to order current tax map information for Frederick County , this can be obtained by contacting the Maryland Department of Planningexternal link at 410-767-4500.

Contour-Planimetric Data

Contour-Planimetric data is also available from the free GIS data download service. Here you can choose to download Contour-Planimetric Data or DEMS (Digital Elevation Models) or both. Contour-Planimetric data is provided in personal geodatabase format and DEMS are provided in ASCII format. If you need help using this service please see the GIS Data Ordering System Help by clicking either of the following links (PDF / HTML).


Plats can be purchased at the Frederick County GIS Document Shop, located at 30 North Market Street. The cost is $20 for a full size print (18 x 24") or no charge for a small print (11 x 17"). You can request a plat online by using the Request for Subdivision Plat Prints form.


Pictometry is oblique aerial imagery that allows you to view buildings, structures and landscapes in greater detail. Pictometry provides software, Electronic Field Study or EFS to enable the user to see all four sides of buildings and structures. Users also have various tools to measure not only linear distances but heights of buildings and structures too. Pictometry flew Frederick County in spring 2011, and the data is being delivered. It was previously flown for the County in March 2008. It is actively being used by the county’s law enforcement and emergency response professionals and it has been adopted into GIS and the Planning department’s programs. All county users have access to view Pictometry for the county. To see instructions on how to install, please click here (internal access only). To understand more about the product, please visit Pictometry.


The County’s digital orthophotography is true color, six inch per pixel resolution, accurate at a scale of 1 inch to 100 feet (1:1200). The date of the orthophotography is March, 2005.  Digital orthophotography is available as MrSid format with associated world file. MrSID (Multi resolution Seamless Image Database by LizardTechexternal link) is a compression methodology for reducing the size of large raster data sets. We provide our orthophotography in this file format.

Countywide Digital Orthophotography on CD: $1275
Individual Orthophotography Tiles ON CD: $25 per tile
Individual Orthophotography Tiles Download: Free

(Find your tile here)

Examples of countywide digital orthophotography

If you are interested in purchasing the digital Orthophotography, check ordering information.