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Environmental Justice Block Groups 2025
Environmental Justice 2025 Set is comprised of two layers: Environmental Justice Block Groups 2025 and Environmental Justice Distressed Municipality 2025. All Census and ACS... -
Bedrock Geology
Bedrock Geology Set is a 1:50,000-scale, polygon and line feature-based layer describing the solid material that underlies the soil or other unconsolidated material of the earth... -
CT Congressional Districts
This feature layer represents the boundaries of Connecticut's congressional districts based on the latest redistricting process following the 2020 Census. More information about... -
Environmental Justice Distressed Municipalities 2023
Environmental Justice 2023 Set is comprised of two layers: Environmental Justice Block Groups 2023 and Environmental Justice Distressed Municipality 2023. All Census and ACS... -
Shellfish
Shellfish polygons were digitized from hand drawn polygons representing hardclam, softclam, and oyster beds produced by the Department of Agriculture from their records in 1990... -
Quaternary Geology Geologic Basin Boundary
Connecticut Quaternary Geology Geologic Basin Divides includes the drainage basins divides appearing on Sheet 1 of the The Quaternary Geologic Map of Connecticut and Long Island... -
Salt Water Limit
Salt Water Limit is a 1:24000-scale, line feature-based layer that depicts the approximate salt water limits of watercourses and embayments in coastal Connecticut. It is... -
305b Assessed 2014 Lake
305b Assessed 2014 River Lake Estuary Set: Connecticut 305b Assessed River 2014 is a 1:24,000-scale, line feature-based layer that includes rivers that have been assessed to... -
Surficial Aquifer Texture
Surficial Aquifer Texture Map was prepared from the Surficial Materials Map of Connecticut (Stone, J.R., Schafer, J.P., London, E.H. and Thompson, W.B., 1992, U.S. Geological... -
2023 Connecticut Buildings
Lidar derived buildings from April, 2023 flight across the entirety of CT. -
Broadband Availability by Planning Region 2025
Broadband Availability Data — Planning Region-Level SummaryWhat the dataset includesLocation countsTotal broadband serviceable locationsNumber of providers Counts of unserved,... -
Connecticut Line
Connecticut State Line includes the line features of a layer named Connecticut. Connecticut is a 1:24,000-scale, polygon and line feature-based layer that depicts the geographic... -
Brownfields 2025
Content Last Updated 2/19/2026Connecticut defines Brownfields in Section 32-760 of the Connecticut General Statutes as: "any abandoned or underutilized site where redevelopment,... -
Bedrock Geology Contacts
Bedrock Geology Set is a 1:50,000-scale, polygon and line feature-based layer describing the solid material that underlies the soil or other unconsolidated material of the earth... -
Shellfish Area Class Line
Shellfish Area Classification Set: The Connecticut Department of Environmental Protection cooperated with the Department of Agriculture, Bureau of Aquaculture to publish the... -
305b Assessed 2010 River
305b Assessed 2010 River, Lake, Estuary Set: Connecticut 305b Assessed River 2010 is a 1:24,000-scale, line feature-based layer that includes rivers that have been assessed to... -
Connecticut Routes
It is derived from the Connecticut Route Segments layer, which is based on spatial information from the U.S. Bureau of Census that was published for Connecticut by the... -
Northeast County Lines
Northeastern United States County Boundary data are intended for geographic display of state and county boundaries at statewide and regional levels. Use it to map and label... -
CT Vicinity County Lines
Connecticut and Vicinity County Boundary data are intended for geographic display of state and county boundaries at statewide and regional levels. Use it to map and label... -
Northeast State Polygon
Northeastern United States State Boundary data are intended for geographic display of state boundaries at statewide and regional levels. Use it to map and label states on a map....
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