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Federal
Toxics Release Inventory (TRI)
U.S. Environmental Protection Agency —
The Toxics Release Inventory (TRI) is a dataset compiled by the U.S. Environmental Protection Agency (EPA). It contains information on the release and waste... -
State
MD COVID-19 - Cases by County
State of Maryland —
Note: Starting October 10th, 2025 this dataset is deprecated and is no longer being updated. As of April 27, 2023 updates changed from daily to weekly. Summary The... -
Federal
EnviroAtlas Estimated Percent Green Space Along Walkable Roads Web Service
U.S. Environmental Protection Agency —
This EnviroAtlas dataset estimates green space along walkable roads. Green space within 25 meters of the road centerline is included and the percentage is based on... -
Federal
TIGER/Line Shapefile, Current, State, Maryland, Place
U.S. Census Bureau, Department of Commerce —
This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information... -
State
MD COVID-19 - Confirmed Deaths by Age Distribution
State of Maryland —
Note: Note: Starting October 10th, 2025 this dataset is deprecated and is no longer being updated. As of April 27, 2023 updates changed from daily to weekly. Summary... -
Federal
TIGER/Line Shapefile, Current, State, Maryland, Census Tract
U.S. Census Bureau, Department of Commerce —
This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information... -
State
MD iMAP: Maryland Chesapeake Bay Dead Zones - Chesapeake Bay Dead Zones
State of Maryland —
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. This dataset contains areas in the Chesapeake Bay with low amounts of oxygen.... -
Federal
Fisheries One Stop Shop Public Data 2009 - Present
National Oceanic and Atmospheric Administration, Department of Commerce —
The purpose of the Fisheries One-Stop-Shop (FOSS) is to make fisheries dependent information readily available to fisheries managers, scientists and the American... -
State
MD COVID-19 - Confirmed Deaths by County
State of Maryland —
Note: Note: Starting October 10th, 2025 this dataset is deprecated and is no longer being updated. As of April 27, 2023 updates changed from daily to weekly. Summary... -
State
MD iMAP: Maryland Traffic Cameras - Traffic Cameras (CHART)
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This dataset provides the locations of Traffic Cameras in Maryland from the... -
Federal
EnviroAtlas Green Space Proximity Gradient Web Service
U.S. Environmental Protection Agency —
This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). In any given 1-square meter... -
Federal
EnviroAtlas One Meter Resolution Urban Land Cover Data (2008-2012) Web Service
U.S. Environmental Protection Agency —
This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas ). The EnviroAtlas One Meter-... -
State
MD iMAP: Maryland Transit - Light Rail Parking
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This data shows the locations of MTA's light rail parking facilities. Last... -
State
MD COVID-19 - Persons 65+ Fully Vaccinated
State of Maryland —
WARNING: This asset has been deprecated and will no longer be updated (last updated 4/29/2022). Summary The cumulative number of COVID-19 vaccinations for persons... -
State
MD iMAP: Maryland Archived Agricultural Land Preservation Foundation 2013 Land Acquisitions Detail
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The Maryland Agricultural Land Preservation Foundation (MALPF) - housed within... -
State
MD iMAP: Maryland Water Quality - Tier II High Quality Waters 2012
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The intent of this dataset is for it to be used to produce maps and provide... -
State
MD COVID-19 - Vaccinations by Age Distribution
State of Maryland —
WARNING: This asset has been deprecated and will no longer be updated (Last Updated April 14, 2022). Summary The cumulative number of COVID-19 vaccinations by age... -
Federal
TIGER/Line Shapefile, Current, State, Maryland, Unified School Districts
U.S. Census Bureau, Department of Commerce —
This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information... -
Federal
EnviroAtlas Near Road Tree Buffer Web Service
U.S. Environmental Protection Agency —
This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). This EnviroAtlas dataset...