Perform a free Maryland public GIS maps search, including geographic information systems, GIS services, and GIS databases.
Baltimore County District Map View Baltimore County district maps, including congressional districts and councilmanic districts. Search Records
City of Cecil Crime Map View City of Cecil crime map filtered by address and date. Search Records
City of Gaithersburg Planning Services City Maps View City of Gaithersburg Planning Services planning maps and publications by location. Search Records
City of Greenbelt Crime Map View City of Greenbelt crime maps filtered by date range, time range, incident type. Search Records
City of Hyattsville Crime Map View City of Hyattsville crime maps filtered by date range, time range, incident type. Search Records
City of Rockville Geographic Information Systems Polling Locations View City of Rockville Geographic Information Systems interactive voting location and precinct map. Search Records
County of Wicomico County Maps View County of Wicomico area maps including election district maps, recycling centers maps, and Wicomico county zoning map. Search Records
Dorchester County Tax Records Search Dorchester County property tax record by property ID, property address or map/grid/parcel/lot. Search Records
Frederick Police Department Crime Map View Frederick Police Department crime map, including locations and kinds of crimes. Search Records
Frederick Police Department Crime Map View Frederick Police Department crime map, including crime filters and areas of interest. Search Records
Prince Georges County Police Department Crime Map View Prince Georges County Police Department crime maps filtered by date range, time range, incident type. Search Records
Queen Anne's County Information Technology GIS Maps View information regarding Queen Anne's County geographical information system including mission statement and basic services provided by GIS. Search Records
Somerset County Crime Map View Somerset County crime map, including location, address and incident type. Search Records
St. Mary's County GIS Maps View St. Mary's County GIS maps list, including aerial only, development, historic sites, park locations and zoning. Search Records
State of Maryland District Maps View State of Maryland legislative election district maps, including maps of each district. Search Records
Washington County GIS Maps View Washington County GIS map and data products, including maps and soils data. Search Records
Westminster Police Department Crime Map View Westminster Police Department crime map by incident type, date, time and location, and by sex offenders. Search Records
Wicomico County Council District Maps View Wicomico County Council councilmanic maps links to the map by district from 1-5. Search Records
Worcester County Environmental Programs County Maps View Worcester County Environmental Programs natural resources maps, including flood hazard, watershed, wetland, and population density maps. Search Records
Worcester County Environmental Programs County Maps View Worcester County Environmental Programs maps, including critical areas program maps and buffer management areas maps. Search Records
GIS Maps are cartographic tools to relay spatial and geographic information. GIS stands for Geographic Information System, the field of data management that charts spatial locations. GIS Maps are produced by the U.S. government and private companies. Because GIS mapping technology is so versatile, there are many different types of GIS Maps that contain a wide range of information. GIS Maps can transmit topographic, structural, hydrographic, historical, and population data, among other types of information.
GIS Maps can be used for many purposes. They show municipal boundaries, addresses, and structures, making them key sources of information for property developers and local governments. GIS mapping databases can also include roads, air traffic, railroads, and other important modes of transportation that divide the land. Property developers or buyers may also use GIS maps to understand zoning, floodplains, and soil composition, allowing them to evaluate potential purchases or development areas.
The advent of satellite imaging technology has made GIS mapping an essential tool for government. Many federal, state, and local offices rely on these maps, and different government agencies may produce their own specialized GIS Maps to serve their needs. Agencies like the U.S. Geological Survey (USGS), the Department of Fish and Wildlife (DFW), and the Department of Defense (DoD) all rely on GIS mapping.
GIS mapping technology allows for detailed ecological and climate mapping. The Environmental Protection Agency (EPA) can use these maps to monitor development, assess droughts, and trace run-off on hydrological maps of watersheds. The National Weather Service (NWS) depends on GIS Maps to chart changing temperatures, rainfall, and seasonal variations to understand the climate.
National security also depends on GIS mapping technology and data. These maps provide valuable intelligence information, largely geared toward domestic and environmental areas. Overseas mapping and surveillance may also use GIS technology for security and protection purposes. These maps are often classified, but non-sensitive governmental GIS databases are open to the general public.