Datasets
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Maryland Department of the Environment - Air and Radiation Administration (ARA) Violation
Maryland Department of the Environment - Air and Radiation Administration (ARA) Violation -
Municipal Boundaries - Detailed
State of Maryland municipality boundary dataset.Maryland Department of Planning (MDP) maps annexations from municipalities. This dataset is created and maintained by the... -
Maryland Department of the Environment - Land Management Administration (LMA) - Solid Waste Program - Enforcement Actions
Maryland Department of the Environment - Land Management Administration (LMA) - Solid Waste Enforcement Actions -
Maryland Department of the Environment - Public Notice
This tool makes it easier to explore environmental permits that may affect your area. It includes applications for projects regulated under state law, such as landfills,... -
COVID Master Tracker
Summary Master list of cumulative cases and deaths for COVID-19 in Maryland by county, age, race, and sex as well as daily hospital bed occupancy levels. Data begins 1/1/2024.... -
Maryland Port Administration General Cargo
Maryland Port Administration General Cargo Monthly Data for the MPA's public terminals (Souce: Internal MPA data) -
MVA Vehicle Sales Counts by Month for Calendar Year 2002 through December 2025
The number of new and used vehicles and the sales dollars respectively sold by month. MDOT MVA’s Customer Connect modernization project, implemented in July 2020, has increased... -
Council on Open Data Documents
Policy & Standards, Annual Reports, and other documents related to the Council on Open Data. -
MDOT/MVA Electric and Plug-in Hybrid Vehicle Registrations by Zip Code as of Each Month End
Total number of electric and plug-in hybrid vehicle registrations by zip code as of each month end from July 2020 to February 2026. -
MDOT/MVA Electric and Plug-in Hybrid Vehicle Registrations by County as of each month end
Total number of electric and plug-in hybrid vehicle registrations by county as of each month end from July 2020 to February 2026. -
MVA Vehicle Registrations by County as of Each Month End from January 2023 to February 2026
Number of active vehicle registrations by county as of each month end -
Maryland Total Residential Sales: 2017-2024
Total Residential Sales in Maryland from 2017-2024 based on data extracted from MDProperty View. To browse the MDProperty View, click here:... -
Maryland and Jurisdictions Median Household Income with Margin of Error, 2015-2024
The data consist of the median household income for Maryland and jurisdictions for 2015-2024. Source: 2024 SAIPE: U.S. Census Bureau, Small Area Income and Poverty Estimates... -
State of Maryland Users' Guide to Uploading Data
A guide to uploading and formatting your data and metadata in the State's Internal and Open Data Portals. -
2026 Open Data Annual Report
The introductory page of Maryland's Open Data Annual Report. It states our vision and mission. -
MDAg - Nutrient Management (programmatic)
Farm inspections and compliance findings for fiscal years 2010-2017, and nutrient management licenses issued. -
MDAg Agronomic
Annual implementation of agronomic BMPs in Maryland for 2010-2017, including Nutrient Management. Records available by county only. -
2026 Open Data Annual Report -- Year In Review
Year In Review page summarized the progress of Open Data project. -
Maryland and Jurisdictions International Migration: 2020-2024
Total international migration estimates for Maryland and its jurisdictions come from the U.S. Census Bureau’s Population Estimates Program. Each annual release revises the... -
2026 Open Data Annual Report -- Look Forward
Look Forward page provided the future plans for Maryland's Open Data program.