Maryland Department of Planning (MDP) maps annexations from municipalities. This dataset is created and maintained by the Maryland Department of Planning. These boundaries are not intended to serve as a legal description. Fields:Municipality Name: Name of Municipality located in Maryland.Jurisdiction Code – Four letter county code: ALLE (Allegany), ANNE (Anne Arundel), BACI (Baltimore City), BACO (Baltimore County), CALV (Calvert), CARO (Caroline), CARR (Carroll), CECI (Cecil), CHAR (Charles), DORC (Dorchester), FRED (Frederick), GARR (Garrett), HARF (Harford), HOWA (Howard), KENT (Kent), MONT (Montgomery), PRIN (Prince George’s) QUEE (Queen Anne’s), SOME (Somerset), STMA (St. Mary’s), TALB (Talbot), WASH (Washington), WICO (Wicomico), WORC (Worcester). Last updated: 9/5/2024This is an MD iMAP hosted service. Find more information at https://imap.maryland.gov.Feature Service Link:https://mdgeodata.md.gov/imap/rest/services/Boundaries/MD_PoliticalBoundaries/FeatureServer/2

Vector polygon map data of property parcels from Prince George's County, Maryland containing 345637 features.

Property parcel GIS map data consists of detailed information about individual land parcels, including their boundaries, ownership details, and geographic coordinates.

Property parcel data can be used to analyze and visualize land-related information for purposes such as real estate assessment, urban planning, or environmental management.

Available for viewing and sharing as a map in a Koordinates map viewer. This data is also available for export to DWG for CAD, PDF, KML, CSV, and GIS data formats, including Shapefile, MapInfo, and Geodatabase.

Vector polygon map data of property parcels from Anne Arundel County, Maryland containing 237,918 features.

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Property parcel GIS map data consists of detailed information about individual land parcels, including their boundaries, ownership details, and geographic coordinates.

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Property parcel data can be used to analyze and visualize land-related information for purposes such as real estate assessment, urban planning, or environmental management.

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Available for viewing and sharing as a map in a Koordinates map viewer. This data is also available for export to DWG for CAD, PDF, KML, CSV, and GIS data formats, including Shapefile, MapInfo, and Geodatabase.

In 1984, the General Assembly enacted the Chesapeake Bay Critical Area Act to regulate development, manage land use and conserve natural resources on land in those areas designated as Critical Area. For this document, the Critical Area is all land and water areas within 1,000 feet of the tidal waters' edge or from the landward edge of adjacent tidal wetlands and the lands under them. Georeferenced digital data files of the critical Area have been produced for Baltimore City and the 16 Maryland counties with land located within the Critical Area. The digital maps produced for each jurisdiction are polygons depicting the Critical Area and the land use classifications recognized by the Chesapeake Bay Critical Area Commission (CBCAC). Each jurisdiction is a separate file. The data were produced from hard copy parcel maps originally submitted by the counties as part of the requirements for developing their Critical Area Program. For the purpose of the Mdimap web service the Critical Area Data is displayed by two data layers, one general layer and one layer showing the available critical area data for local towns.This data set represents the Department of Natural Resources interpretation of the location and extent of the Critical Area; however, the digital maps are not recognized as the "official" maps. In accordance with Subsection 8-1807(a) of the Critical Area Act, the Critical Area consists of (1) All waters and lands under the Chesapeake Bay and its tributaries to the head of tide as indicated on the State wetland maps, and all State and private wetlands designated under Environment Article, Title 16, annotated Code of Maryland; (2) All land and water areas within 1,000 feet beyond the landward boundaries of State or private wetlands and the of tides designated under Environment Article, Article 16, Annotated Code of Maryland; and (3) Modification to these areas through inclusions or exclusions proposed by local jurisdictions and approved by Commission as specified in Natural Resources Article, Subsection 8-1807, annotated Code of Maryland. These maps are hard copy maps that cannot be exactly replicated in a digital format; therefore, some interpretation was necessary to create the digital line. Hard copy maps depicting the official Critical Area boundary line are available for review at the Chesapeake Bay Critical Area Commission, and at most local planning and zoning departments. The Department of Natural Resources makes no warranty, expressed or implied, as to the use or appropriateness of Spatial Data, and there are no warranties of merchantability or fitness for a particular purpose or use. The intended use is for general information and planning purposes. It is not intended to be used to determine the exact location of the Critical Area boundary on a specific parcel or to determine the acreage within the Critical Area on a specific site. The information contained in Spatial Data is from publicly available sources, but no representation is made as to the accuracy or completeness of Spatial Data. The Department of Natural Resources shall not be subject to liability for human error, error due to software conversion, defect, or failure of machines, or any material used in the connection with the machines, including tapes, disks, CD-ROMs or DVD-ROMs and energy. The Department of Natural Resources shall not be liable for any lost profits, consequential damages, or claims against the Department of Natural Resources by third parties. The liability of the Department of Natural Resources for damage regardless of the form of the action shall not exceed any distribution fees that may have been paid in obtaining Spatial Data.There were many parties involved in producing Maryland's Critical Area data and the key parties will be listed. Each county and city (listed below) produced a hard copy map and submitted the map to the Chesapeake Bay Critical Area Commission (CBCAC) for approval. Through Coastal Zone Management grants, CBCAC digitized the county data. Maryland DNR's Chesapeake and Coastal Watershed Service finalized the data and is handling data distribution. Anne Arundel County, Office of Planning and Code Enforcement., Baltimore City, Department of Planning., Baltimore County, Department of Environmental Protection and Resource Management., Caroline County, Economic Development Commission., Calvert County, Department of Planning and Zoning (digital data not included)., Cecil County, Office of Planning and Zoning., Charles County, Department of Planning and Zoning., Dorchester County, Planning and Zoning Office., Harford County, Department of Planning and Zoning., Kent County, County Planning Commission., Prince George's County, Department of Environmental Resources., Queen Anne's County, Office of Planning and Zoning., St. Mary's County, Department of Planning and Zoning., Somerset County, Department of Technical and Community Services., Talbot County, Office of Planning and Zoning., Wicomico County, Office of Planning and Zoning., and Worcester County, Office of Planning, Permits and Inspections.

Esri ArcGIS Online (AGOL) Feature Layer which provides access to the MDOT SHA County Flood Statistics MapsMDOT SHA County Flood Statistics Maps data consists of polygon geometric features which represent the geographic extent of each Maryland County with an available MDOT SHA County Flood Statistics Map. Users of this layer should consume the URL contained within each pop-up to access the MDOT SHA County Flood Statistics Map.MDOT SHA County Flood Statistics Maps data is owned & maintained by the MDOT SHA OPPE Innovative Planning & Performance Division (IPPD).For more information related to the maps, contact MDOT SHA OPPE Innovative Planning & Performance Division (IPPD):Email: IPPD@mdot.maryland.govFor more information, contact MDOT SHA OIT Enterprise Information Services:Email: GIS@mdot.maryland.gov

Multimodal Transportation Corridors - Harford County, Maryland - PDF Map

Click "Data Source" to download PDF map.

The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the UTM projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.

The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the UTM projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.

U.S. Census Bureau QuickFacts statistics for Maryland. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

Highway Functional Classification, Harford County Maryland. 8.5 x 11in. Map

Click "Data Source" to download PDF map.

In 1984, the General Assembly enacted the Chesapeake Bay Critical Area Act to regulate development, manage land use and conserve natural resources on land in those areas designated as Critical Area. For this document, the Critical Area is all land and water areas within 1000 feet of the tidal waters' edge or from the landward edge of adjacent tidal wetlands and the lands under them. Georeferenced digital data files of the critical Area have been produced for Baltimore City and the 16 Maryland counties with land located within the Critical Area. The digital maps produced for each jurisdiction are polygons depicting the Critical Area and the land use classifications recognized by the Chesapeake Bay Critical Area Commission (CBCAC). Each jurisdiction is a separate file. The data were produced from hard copy parcel maps originally submitted by the counties as part of the requirements for developing their Critical Area Program. For the purpose of the MD iMap web service the Critical Area Data is displayed by two data layers, one general layer and one layer showing the available critical area data for local towns.This is a MD iMAP hosted service. Find more information at https://imap.maryland.gov.Feature Service Link: https://mdgeodata.md.gov/imap/rest/services/Environment/MD_CriticalAreas/MapServer/1

The Digital Geologic Map of Chesapeake and Ohio Canal National Historical Park and Vicinity, District of Columbia, Virginia, Maryland and West Virginia is composed of GIS data layers complete with ArcMap 9.3 layer (.LYR) files, two ancillary GIS tables, a Map PDF document with ancillary map text, figures and tables, a FGDC metadata record and a 9.3 ArcMap (.MXD) Document that displays the digital map in 9.3 ArcGIS. The data were completed as a component of the Geologic Resources Inventory (GRI) program, a National Park Service (NPS) Inventory and Monitoring (I&M) funded program that is administered by the NPS Geologic Resources Division (GRD). Source geologic maps and data used to complete this GRI digital dataset were provided by the following: U.S. Geological Survey and Maryland Geological Survey. Detailed information concerning the sources used and their contribution the GRI product are listed in the Source Citation sections(s) of this metadata record (choh_metadata.txt; available at http://nrdata.nps.gov/choh/nrdata/geology/gis/choh_metadata.xml). All GIS and ancillary tables were produced as per the NPS GRI Geology-GIS Geodatabase Data Model v. 2.1. (available at: http://science.nature.nps.gov/im/inventory/geology/GeologyGISDataModel.cfm). The GIS data is available as a 9.3 personal geodatabase (choh_geology.mdb), and as shapefile (.SHP) and DBASEIV (.DBF) table files. The GIS data projection is NAD83, UTM Zone 18N. The data is within the area of interest of Chesapeake and Ohio Canal National Historical Park, as well as Antietam National Battlefield, Harpers Ferry National Historical Park, and George Washington Memorial Parkway.

Precinct (voting district) polygon boundaries for 2022 collected by the Maryland Department of Planning (Planning) from counties (including Baltimore City) or digitized by Planning in coordination with counties, with precinct numbers reformatted as necessary for statewide consistency (see VTD field specifications below). All data are reprojected to WGS 1984 Web Mercator (auxiliary sphere) consistent with MD iMap standards, but precincts are otherwise delineated as received from counties. Planning may complete minor future adjustments to ensure precincts are edge matched with Census block boundaries.Fields include: JURSCODE (Jurisdiction Code) – MdProperty View jurisdiction code (four-letter county or Baltimore City code) COUNTY (County) – The US Census Bureau’s five-digit geographic identifier for each county in Maryland (including Baltimore City), which is includes the Maryland state code (24) followed by a three-digit county code. COUNTYNAME (County Name) – County name in text format VTD (Voting District Identifier) – Voting district identifier comprised of a five-digit county code (see “COUNTY” field) followed by a six-digit precinct identifier. The six-digit precinct identifier contains a two-digit election district number followed by a dash followed by a three-digit precinct number. This field is NULL for precinct names that could not be formatted according to these specifications. LABEL (Precinct Label) – Includes either the final six digits of the VTD field (precinct identifier) or the precinct name as provided by the county if a six-digit precinct identifier could not be derived from the source data. May be blank or NULL. Precinct labels are not unique across counties. NAME (Full Precinct Name) - Full precinct name, including the County Name and Precinct Label AGG_SRC (Aggregator Source) - Includes the aggregator organization credited with data aggregation, feature class name, and vintage date DATE_AGGREGATED (Date Aggregated) – Date the data were aggregated (YYMMDD) GIS_SRC (GIS Source) – The original source of the GIS spatial and attribute information the aggregator obtained, typically formatted as a shapefile or feature class name SRC_DATE (GIS Source Date) - The date (YYYYMMDD) the GIS data were obtained by the data aggregator. If the month or day is unknown, the date is YYYY0000This dataset includes historical precinct data from 2022. For the latest precinct information, please contact the Local Board of Elections: https://elections.maryland.gov/about/county_boards.html.This is a MD iMAP hosted service. Find more information at https://imap.maryland.gov.Feature Service Link:https://mdgeodata.md.gov/imap/rest/services/Boundaries/MD_ElectionBoundaries/FeatureServer/2

Geospatial data about Howard County, Maryland Police Beats. Export to CAD, GIS, PDF, CSV and access via API.

Map of Washington County, Maryland, showing distribution of geological formations.

U.S. Census Bureau QuickFacts statistics for Bel Air town, Maryland. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

The Potomac River Atlas of Washington County, first published in 2013, has been updated for 2020 and optimized for use with the Avenza App. This atlas is the most complete and detailed map ever created of the 83-miles of the Potomac River in Washington County. The 39 maps include the westernmost section at Sideling Hill Creek, along the river to just east of Weverton Cliffs and Knoxville. The atlas is all inclusive of every natural and manmade feature, with labels: roads, rail lines, bridges, all parks, trails, boat ramps, caves, power lines, tunnels, buildings, canal structures, and a great deal more. The maps include elevations, water flow, and subdivisions. Western Maryland Rail Trail and C&O Canal Towpath mile markers are included. West Virginia (Morgan, Berkeley, and Jefferson Counties) and Virginia (Loudoun County) are included.

The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual- chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the Universal Transverse Mercator Zone 18 North. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000. Coastal study data as defined in FEMA Gudelines and Specifications, Appendix D: Guidance for Coastal Flooding Analyses and Mapping, submitted as a result of a coastal study. Appendix D notes that a variety of analytical methodologies may be used to establish Base (1-percent-annual-chance) Flood Elevations (BFEs) and floodplains throughout coastal areas of the United States. Appendix D itemizes references for the methodologies currently in use by FEMA for specific coastal flood hazards, provides general guidance for documentation of a coastal flood hazard analysis, specifies flood hazard analysis procedures for the Great Lakes coasts, and outlines intermediate data submissions for coastal flood hazard analyses with new storm surge modeling and revised stillwater flood level (SWFL). (Source: FEMA Guidelines and Specs, Appendix D Guidance for Coastal Flooding Analyses and Mapping, Section D.1)

Esri ArcGIS Online (AGOL) Map Image Layer for accessing the Maryland Coast Smart - Climate Ready Action Boundary (CRAB) Inundated Zones data product.Maryland Coast Smart - Climate Ready Action Boundary (CRAB) Inundated Zones consists of polygon geometric features which represent the geographic areas throughout the State of Maryland that are impacted by CRAB inundation (0 to 1ft, 1 to 2ft, and 2ft or more).The Maryland Coast Smart - Climate Ready Action Boundary (CRAB) Inundated Zones data product was created using a GIS spatial analysis model, unique for each county in the State of Maryland. Coastal counties follow an analysis methodology that incorporates FEMA Stillwater wave action as it is understood from the FEMA identified VE zones. A Water Surface Elevation (WSE) and Still Water Elevation (SWEL) rasters are used as the baseline to identify existing water depths within each county. For all flood zones that are not classified as VE the WSE three feet was added to reflect a three-foot rise in the base flood elevations. For those WSEs falling within a FEMA floodplain identified V Zone, six feet was added (three feet for the increase in flood elevations for the CS-CRAB, and 3 feet to compensate for the minimum of 3 foot wave action typically mapped by FEMA) / wave heights greater than 3 feet were reduced to the 3 foot minimum for consistency across the shoreline. The newly calculated WSE plus three datasets were then converted to points and merged. Next, an Inverse Distance Weighted (IDW) Interpolation was used to compute the proportional weighted values between the WSE point locations based on proximity. The DEM for each county is then subtracted from the new IDW raster in order to show precise water locations as they relate to the land elevation, producing a freeboard depth grid representing the depth of flood waters above the existing ground elevation given a 3 foot increase in water level. A course resolution QAQC was applied to remove “islands” of data associated with DEM inaccuracies and other elevation anomalies. The analysis was run at a1 ft x 1 ft raster resolution. The DEM accuracy for each county varies based what is currently available. Here the breakdown of DEM accuracy for each county used in this project: Anne Arundel County DEM year is 2017 and horizontal resolution is 1ft. Baltimore County DEM year is 2015 and horizontal resolution is 2.5ft. Baltimore City DEM year is 2015 and horizontal resolution is 0.7m. Calvert County DEM year is 2017 and horizontal resolution is 1ft. Caroline County DEM year is 2013 and horizontal resolution is 3.125ft. Cecil county DEM year is 2013 and horizontal resolution is 0.6m. Charles County DEM year is 2014 and horizontal resolution is 0.9m. Dorchester County DEM year is 2013 and horizontal resolution is 0.9m. Harford County DEM is 2013 and horizontal accuracy is 1.5m. Kent County DEM year is 2015 and horizontal resolution is 0.7m. Prince George’s County DEM year is 2014 and horizontal resolution is 0.7m. Queen Anne’s County DEM year is 2013 and horizontal resolution is 0.6m. Somerset County DEM year is 2012 and horizontal accuracy is 1m. St Mary’s County DEM year is 2014 and Horizontal accuracy is 0.9m. Talbot County DEM year is 2015 and Horizontal accuracy is 0.7m. Wicomico County DEM year is 2012 and horizontal accuracy is 1m. Worchester County DEM year is 2011 and horizontal accuracy is 1m.The Maryland Coast Smart - Climate Ready Action Boundary (CRAB) Inundated Zones data product was created by the Maryland Environmental Service (MES) in partnership with the Maryland Department of Environment (MDE) and the Coast Smart Council, under the guidance of the Maryland Department of Natural Resource (DNR).For additional information, contact MDOT SHA OIT Enterprise Information Services:Email: GIS@mdot.maryland.gov

This layer contains data concerning the location and characteristics of contacts and faults within Frederick county. This geodatabase contains geologic data from Frederick County, Maryland. Data from several geologic quadrangles and two regional scale geologic maps were incorporated into the regional scale geologic feature classes in this geodatabase. Because of the scale of this map, some features were generalized slightly from the quad scale data. Additionally, some corrections were made for accuracy, such as edge matching to resolve "border faults". The source data for this map and geodatabase come from maps published by the Maryland Geological Survey from 2001 to the present, as well as one map published in cooperation with the United States Geological Survey. The source maps are Buckeystown (2001), Catoctin Furnace (2004), Frederick (2004), New Windsor (2004), Point of Rocks (2004), Walkersville (2004), Woodsboro (2004), Middletown (2005), Union Bridge (2006), Funkstown (2009), Keedysville, Shepherdstown, Charlestown, and Harpers Ferry (2009), Myersville and Smithsburg (2009), Hagerstown (2013), Mason and Dixon (2013), Clear Spring and Hedgesville (2014), Williamsport (2014), Blue Ridge Summit (2021, in review), Emmitsburg and Taneytown (2021, in review), all 1:24000 quadrangle scale, as well as portions of two regional maps: Geologic Map of Garrett, Allegany, and Western Washington Counties, Maryland (2013), and Geologic Map of the Frederick 30' x 60' Quadrangle, Maryland, Virginia, and West Virginia (USGS, 2007). The GIS data from the referenced maps were mosaiced in Arc Map, corrected for accuracy across quad boundaries, merged to form a continuous dataset and clipped to the extent of Frederick County. Feature level metadata are included, which contain field descriptions for each feature class. This is a small scale dataset, appropriate for 1:100,000 regional scale. Quad scale data are suggested for display or analysis that requires a larger scale. This dataset is prepared for compliance with the USGS GeMS database standard. Last Updated: 06/01/2022