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Maine Government Data
1,545 open datasets about Maine from federal agencies.
Datasets
1,545
State government
0
County and city
0
Federal, about the state
1,545
Open data portals
Official portals run by governments in Maine
No Maine portal in our list yet
Datasets below come from Data.gov and federal agencies. We add state and local portals as we find them.
Maine datasets
1,545 datasets
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- Sensor, navigation, and CTD data autonomously collected on the ROPOS ROV during the Henry Bigelow (HB1402) cruise in the Gulf of Maine (NCEI Accession 0318342)National Oceanic and Atmospheric Administration, Department of Commerce · National Centers for Environmental Information · Covers MaineStandard ROPOS ROV data autonomously collected at 16 stations in the Gulf of Maine with a focus on canyon and intercanyon areas including the Corsair and Nygren canyons and the Jordan Basin. The Integrated Real-time Logging System (IRLS) generates several textUpdated 10/20/2026
- Ocean Biogeochemistry from Gliders as part of the Gulf of Maine North Atlantic Time SeriesNational Aeronautics and Space Administration · Covers MaineThis dataset contains ocean biogeochemistry data from two Slocum gliders along the Gulf of Maine North Atlantic Time Series (GNATS) transect. The transect runs approximately east-west, with only a very minor change in latitude. The gliders are deployed on the XMLPDFBINPNGUpdated 10/20/2026
- CMS: Aboveground Biomass from Penobscot Experimental Forest, Maine, 2012National Aeronautics and Space Administration · ORNL_DAAC · Covers MaineThis data set includes estimates of aboveground biomass (AGB) in 2012 from the Penobscot Experimental Forest (PEF) in Bradley, Maine. The AGB was modeled using LiDAR data gathered with the LiDAR Hyperspectral and Thermal Imager (G-LiHT) operated by Goddard SpaXMLZIPPDFPNG+2Updated 10/20/2026
- Observations from the Western Gulf of MaineNational Aeronautics and Space Administration · Covers MaineObservations from the Western Gulf of MaineXMLBINUpdated 10/20/2026
- Watershed sampling of the Kennebec, Androscoggin, St. John Rivers, Maine, and New Brunswick, CanadaNational Aeronautics and Space Administration · Covers MaineThe NASA_3Rivers_NNX11AF22G cruise consisted of watershed sampling of the Kennebec, Androscoggin, St. John Rivers in Maine, USA and New Brunswick, Canada. Water samples were collected from a nominal depth of 0.5 m and then processed as described by the accompaXMLBINUpdated 10/20/2026
- Kennebec River Plume - Gulf of Maine ecosystem measurementsNational Aeronautics and Space Administration · Covers MaineMeasurements made in the Gulf of Maine between 2005 and 2007.XMLBINUpdated 10/20/2026
- Gulf of Maine optical measurements from 1933 to 1991National Aeronautics and Space Administration · Covers MaineMeasurements of optics from the Gulf of Maine region spanning 1979 to 1996.XMLBINUpdated 10/20/2026
- Gulf of Maine nutrient measurements from 1933 to 1991National Aeronautics and Space Administration · Covers MaineMeasurements of nutrients from the Gulf of Maine region from 1933 to 1991.XMLBINUpdated 10/20/2026
- Measurements from the Gulf Of Maine during 2008 and 2009National Aeronautics and Space Administration · Covers MaineMeasurements from the Gulf Of Maine during 2008 and 2009.XMLBINUpdated 10/20/2026
- Gulf of Maine optical measurements between 2004 and 2007National Aeronautics and Space Administration · Covers MaineMeasurements made in the Gulf of Maine between 2004 and 2007.XMLBINUpdated 10/20/2026
- Gulf of Maine North Atlantic Time Series (GNATS)National Aeronautics and Space Administration · Covers MaineThe Gulf of Maine (GoM) is a highly productive shelf sea that constitutes a large part of the N.E. US Continental Shelf. We have run a time series across the GoM for the last 8 years known as GNATS (Gulf of Maine North Atlantic Time Series). It consists of monXMLBINUpdated 10/20/2026
- Coastal Ocean Observation and Analysis (COOA) Gulf of Maine measurementsNational Aeronautics and Space Administration · Covers MaineMeasurements from the Gulf of Maine between 2008 and 2009 made by the Coastal Observing Center at UNH (sometimes called COOA).XMLBINUpdated 10/20/2026
- Impacts of Climate Variability on Primary Productivity and Carbon Distributions in the Middle Atlantic Bight and Gulf of Maine (CliVEC)National Aeronautics and Space Administration · Covers MaineTitle: The Impacts of Climate Variability on Primary Productivity and Carbon Distributions in the Middle Atlantic Bight and Gulf of Maine (CliVEC)Research Team:* Antonio Mannino (PI) - NASA GSFC* Michael Novak - NASA GSFC* Margaret Mulholland (co-PI) - Old DomXMLBINUpdated 10/20/2026
- Gulf of Maine measurements in 2007 under the BIODIVERSITY programNational Aeronautics and Space Administration · Covers MaineMeasurements made in the Gulf of Maine in 2007 under the BIODIVERSITY program.XMLBINUpdated 10/20/2026
- Gulf of Maine measurements in 2008National Aeronautics and Space Administration · Covers MaineMeasurements taken in the Gulf of Maine in 2008.XMLBINUpdated 10/20/2026
- Aboveground Biomass Maps for Howland Research Forest, Maine, 2012-2025National Aeronautics and Space Administration · ORNL_DAAC · Covers MaineThis dataset provides aboveground biomass (AGB) maps at 10-m spatial resolution for the Howland Research Forest in central Maine for the years 2012, 2015, 2017, 2021, 2023, and 2025. Forest inventory measurements were collected from 38 plots during the summersXMLZIPPDFPNG+1Updated 10/20/2026
- Aboveground Biomass for Howland Forest, Maine, 2012-2023National Aeronautics and Space Administration · ORNL_DAAC · Covers MaineThis dataset holds aboveground biomass (AGB) estimates at 10-m spatial resolution for the Howland Research Forest in central Maine for 2012, 2015, 2017, 2021, and 2023. Forest inventory data were collected using 50 fixed-area plot sampling during the summers oXMLZIPPDFPNG+1Updated 10/19/2026
- Forest Aboveground Biomass for Maine, 2023National Aeronautics and Space Administration · ORNL_DAAC · Covers MaineThis dataset holds estimates of forest aboveground biomass (AGB) for Maine, USA, in 2023. AGB was estimated using airborne LiDAR data from the USGS 3DEP project and a deep learning convolutional neural network (CNN) model. The airborne LiDAR datasets used in tXMLPDFBINJPEGUpdated 10/19/2026
- Microbial Source Tracking Data for Human and Canine Fecal Markers Collected in Houlton, Maine, June 2026Department of the Interior · U.S. Geological Survey · Covers MaineThe U.S. Geological Survey, in collaboration with the Houlton Band of Maliseet Indians (HBMI), conducted a pilot microbial source tracking (MST) study to investigate sources of fecal indicator bacteria in the Meduxnekeag River watershed near Houlton, Maine. HBXMLUpdated 10/01/2026
- Topographic data, aerial imagery, and GPS data collected during uncrewed aircraft system (UAS) operations at Laudholm Marsh, Wells, Maine, December 1, 2025Department of the Interior · U.S. Geological Survey · Covers MaineThe U.S. Geological Survey deployed small uncrewed aircraft systems (sUAS) to collect aerial remote sensing data across the Laudholm Marsh in Wells, Maine. These datasets were processed to produce a high resolution digital terrain model (DTM), image mosaics, aXMLUpdated 09/28/2026
- Pre-breeding foraging ecology of three tern species nesting in the Gulf of MaineDepartment of the Interior · U.S. Geological Survey · Covers MaineThis dataset contains carbon (δ13C) and nitrogen (δ15N) isotope values, and C:N ratios, from eggshell tissue samples of Arctic terns (Sterna paradisaea), Common terns (S. hirundo), and Roseate terns (S. dougalii) nesting on seven islands located along the coasXMLUpdated 09/18/2026
- Bangor, Maine Boresight Ground Control Point Ground-level PhotosDepartment of the Interior · U.S. Geological Survey · Covers MaineThe US Geological Survey's Upper Midwest Environmental Sciences Center, in coordination with the US Fish and Wildlife Service's (USFWS) Branch of Migratory Bird Surveys, worked to develop, survey, and deploy an advanced aerial photography boresight in the townXMLUpdated 09/10/2026
- Soil and groundwater concentrations of PFAS, soil properties, and derived soil-water distribution coefficients for sites in MaineDepartment of the Interior · U.S. Geological Survey · Covers MaineThe U.S. Geological Survey (USGS) derived soil-water distribution coefficients (Kd values) from per- and polyfluoroalkyl substances (PFAS) analytical chemistry data and soil properties based on soil and groundwater samples collected by the Maine Department of XMLUpdated 08/28/2026
- NCVAS State Summary Maine FY2025Department of Veterans Affairs · Covers MaineNCVAS State Summary Maine FY2025Updated 08/28/2026
- Temperature by depth and aquatic organism stable isotope values from Floods Pond, Maine, collected 2023-2025Department of the Interior · U.S. Geological Survey · Covers MaineWe collected high-resolution vertical temperature data from a Maine lake where several southern range-edge cold-water fishes occur. Temperature data were collected every 15 minutes on loggers spaced every 3 m, and temperature was estimated between loggers at 0XMLUpdated 08/25/2026
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Frequently asked questions
- Does Maine have an open data portal?
- We have not found a state-run portal for Maine yet. Federal agencies still publish many datasets about the state on Data.gov.
- How many datasets are there about Maine?
- The DatenUS catalog lists 1,545 datasets: 0 from the state government, 0 from counties and cities, and 1,545 federal datasets that cover Maine.
- Is this data free to use?
- State and local portals usually allow free reuse under an open license or their terms of use, and most federal data is in the public domain. Check each dataset page for its license.
Source: State and local open data portals, Data.gov Catalog