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State
Shellfish
State of Connecticut —
Shellfish polygons were digitized from hand drawn polygons representing hardclam, softclam, and oyster beds produced by the Department of Agriculture from their... -
State
Electric Vehicle Charging Stations
State of Connecticut —
Existing public Electric Vehicle (EV) charging stations within Connecticut from US DOE map found at https://afdc.energy.gov/stations/#/find/nearest complemented with... -
State
Spill Incidents from July 1, 2022 to Recent for Download
State of Connecticut —
This data set represents information reported after June 30, 2022 to the Department of Energy and Environmental Protection (CT DEEP), generally to the CT DEEP... -
State
Migratory Waterfowl
State of Connecticut —
Migratory Waterfowl is a 1:24,000-scale, polygon feature-based layer that depicts the concentration areas of migratory waterfowl at specific locations within... -
State
Connecticut Parcels 2009
State of Connecticut —
See full Data Guide here. Connecticut Parcels for Protected Open Space Mapping is a polygon feature-based layer that includes basic parcel-level information for some... -
State
Lake Bathymetry Contours Lines
State of Connecticut —
See full Data Guide here. Lake Bathymetry describes the water depth for selected reservoirs, lakes, ponds, and coves in Connecticut. It includes depth contours, also... -
State
Surface Water Quality Polygon
State of Connecticut —
See full Data Guide here. Surface Water Quality Classifications Set: This dataset is a line and a polygon feature-based layer compiled at 1:24,000 scale that includes... -
State
Prescription Monitoring Program: Prescription Dispensations
State of Connecticut —
This dataset provides the prescription count for controlled substances, non-controlled substances, opioids, benzodiazepine, stimulant, gabapentin, & naloxone... -
State
Coastal Area
State of Connecticut —
The Coastal Area layer is a 1:24,000-scale, polygon feature-based layer that includes the land and waters that lie within the Coastal Area as defined by Connecticut... -
State
Prescription Monitoring Program: Top 5 Stimulant Prescriptions Dispensed
State of Connecticut —
This dataset includes the Top 5 Stimulant prescriptions dispensed on a quarterly basis, showing the last day of the preceding quarter. Drug names presented are the... -
State
Environmental Justice 2025 Set
State of Connecticut —
Environmental Justice 2025 Set is comprised of two layers: Environmental Justice Block Groups 2024 and Environmental Justice Distressed Municipality 2025. All Census... -
State
Salt Water Limit
State of Connecticut —
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... -
State
Connecticut Railroads
State of Connecticut —
Connecticut Railroads is a 1:24,000-scale, feature-based layer that includes railroad features on the U.S. Geological Survey (USGS) 7.5 minute topographic quadrangle... -
State
Environmental Justice Distressed Municipalities 2021
State of Connecticut —
Environmental Justice Block Groups 2021 was created from Connecticut block group boundary data located in the Census Bureau's 2019 TIGER/Line Shapefiles. The poverty... -
State
CT Geodata Portal
State of Connecticut —
The CT Geodata Portal is an open data site for all geospatial data in Connecticut. Users can find spatial datasets directly administered by the GIS Office as well as... -
State
Impaired 2006 River Lake Estuary Set
State of Connecticut —
Connecticut 303(d) Impaired Waters 2006 is a subset of Connecticut 305(b) Assessed Waters 2006. If any one of the assigned designated uses is categorized as NOT... -
State
Connecticut Poly
State of Connecticut —
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... -
State
Connecticut Dams - Public Use
State of Connecticut —
Connecticut Dams is a 1:24,000 scale spatial data developed for use by the Dam Safety Section of the Inland Water Resources Division, Bureau of Water Protection and... -
State
Trail Interest
State of Connecticut —
DEEP Trails Set: Trail Access Points are point features in the Statewide Trails Database that describe where trails are accessed at trail heads, state and municipal... -
State
Federal Open Space
State of Connecticut —
See full Data Guide here. Federal Open Space is a polygon feature-based layer that includes land owned in either easement or fee simple interest by the federal...