The County’s Geographic Information Systems (GIS) effort has been ongoing since 1994. Since then the county has created a centralized County GIS. This approach includes centralized functions such as the development and maintenance of core data layers, development of data standards, system administration, and general oversight of GIS activities county-wide.
Frederick County GIS supports numerous County agencies with their varying GIS needs and is involved in many county-wide GIS initiatives, such as:
- Pictometry (2011)
- Parcel Data Maintenance/Development
- Internet Application Development
- Planimetric Maintenance
Web Mapping Applications Updated
The Frederick County GIS Team has recently replaced several web mapping applications with new exciting tools!
Please view the latest addition to the line-up of online applications: the NEW Frederick County Sheriff's Office Crime At A Glance!
This application combines the previously separate Crime and Sexual Offenders applications into one, easy to use to use, application.
The public information provided by the Frederick County Sheriff’s Office in this Registered Sex Offender Map is a proactive effort to protect children and others from those with histories of crimes against children and other sexual offenses.
Close attention should be paid to all DISCLAIMERS accompanying this this application.
Posted on 5-30-2012
At A Glance Mapping Application featured in WTOP
Frederick County At A Glance
mapping application was features in WTOP (103.5 FM). As the article mentioned, we now have
on how to use the mapping application. You can see the article by visiting
Posted on 8-16-2011
New! Frederick County At A Glance Mapping Application
The Frederick County GIS team is proud to announce the release of the brand new web mapping application,
Frederick County At A Glance.
This application allows users to obtain a wealth of current information about Frederick County properties
including real property information, plat, recycle data, crime statistics, zoning, water and sewer services,
schools, libraries, police districts, and parks. Users will find an archive of historic imagery of the
County ranging from 1952-2009, measuring tools, links to Google streetview and Bing imagery, local weather
forecasts and much much more. The interface of this mapping application displays large easy to read icons
and fast and convenient search functions that are just a mouse click away.
Posted on 3-9-2011
This application requires Adobe Flash 10 or later installed and is best viewed using Internet Explorer 7.0 with 1024 x 768 screen resolution.
Frederick County GIS and TransIT Team Up
Frederick County GIS has recently worked with Frederick County's TransIT to provide route links
to Google's trip planner. Please see the Frederick News Post article "Tooling around".
Posted on 12-03-2010
New! Address and Street Search Application
Frederick County GIS is proud to announce the deployment of a new public facing, internet based application called Address and Street Search.
Searching for streets and addresses in Frederick County has never been easier! Frederick County citizens are now able
to search for existing street names and addresses, see the location on a map and report an error if they find incorrect
information. Alternately, citizens can view pdfs of street listings for the County by alphabetical order or by zipcode.
Posted on 10-07-2010
Frederick County GIS recipient of ESRI's 2010 SAG Award
Frederick County's GIS team is the recipient of ESRI's 2010 Special Achievement in GIS (SAG) Award. SAG Awards are presented to organizations and individuals who make outstanding contributions to our global society and set new precedents throughout the GIS community.
The Frederick County GIS team was nominated for their work on the
Survey Control Network Mapping Application
, which went live in 2009. This application which features ArcGIS Server and Adobe FLEX technologies, was created
as a tool for the surveyor community to get helpful information on the control monuments and surrounding area in
Posted on 05-18-2010
Map Services Published with ArcGIS Server Now Available
need to download a current version of Google Earth
to take advantage of the respective links.
ESRI's ArcMap link provides a layer file which can be opened directly in an ArcMap product (ArcMap required) or
saved locally. For more information on service types please visit the ArcGIS Server Services page.
Posted on 04-14-2010
Free GIS Data Download Service
In addition to digital products in CD or DVD format that are available for purchase, Frederick County GIS now offers a free GIS data download service. GIS Base Data is available from this download service as well as Orthophotography and Contour-Planimetric data. Help for using the service is available by clicking on the following (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.