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State
ArchaeologyGrid
State of Connecticut —
This layer denotes the presence of archaeology sites utilizing a grid based on the U.S. National Grid (10,000 m) divided into nine sections per 10,000 m grid. The red... -
State
Soils Farmland Classification
State of Connecticut —
Farmland classification identifies map units as prime farmland, farmland of statewide importance, farmland of local importance, or unique farmland. It identifies the... -
State
Election Results and Voter Turnout
State of Connecticut —
A website provided by the Secretary of the State that provides real time data on election results and voter turnout across the State. -
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 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
Vehicle Crash Data Repository
State of Connecticut —
The Connecticut Crash Data Repository (CTCDR) is a web tool designed to provide access to select crash information collected by state and local police. This data... -
State
National Highway System Interactive Map
State of Connecticut —
The NHS was developed by the Department of Transportation (DOT) in cooperation with the states, local officials, and metropolitan planning organizations (MPOs). -
State
Bulk Legislative Data Downloads
State of Connecticut —
A website provided by the Connecticut General Assembly that provides bulk downloads of legislative data in multiple formats. -
State
Soils Hydric Rating
State of Connecticut —
This rating indicates the percentage of map units that meets the criteria for hydric soils. Map units are composed of one or more map unit components or soil types,... -
State
CTDOT Municipalities
State of Connecticut —
The CT Municipalities layer consists of individual polygons representing each of the 169 municipalities that make up the state of Connecticut. This feature class is... -
State
CTDOT Office of the State Traffic Administration (OSTA) Interactive Map
State of Connecticut —
Web Mapping Application containing all layers from the Office of the State Traffic Administration that enables the user to visually review, search, and query OSTA... -
State
Soils Inland Wetland
State of Connecticut —
The State of Connecticut defines inland wetlands based on soils. The Connecticut Inland Wetlands and Watercourses Act defines wetland soils to include any of the soil... -
State
Environmental Justice Block Groups 2023
State of Connecticut —
Environmental Justice 2023 Set is comprised of two layers: Environmental Justice Block Groups 2023 and Environmental Justice Distressed Municipality 2023. All Census... -
State
ActiveProjects - StoryMap
State of Connecticut —
This StoryMap series contains a collection of four Dashboards used to display active project data on the Connecticut road network. Dashboards are used to display... -
State
CT House Districts
State of Connecticut —
This feature layer represents the boundaries of Connecticut's House of Representative’s districts based on the latest redistricting process following the 2020 Census.... -
State
Connecticut and Vicinity Town Boundary Set
State of Connecticut —
Connecticut and Vicinity Town Boundary data are intended for geographic display of state, county and town (municipal) boundaries at statewide and regional levels. Use... -
State
CT Shorelines: 1983-2006
State of Connecticut —
Shorelines are continuously moving in response to winds, waves, tides, sediment supply, changes in relative sea level, and human activities. Shoreline changes are... -
State
September 2025 GIS Office Newsletter
State of Connecticut —
The September 2025 issue of the GIS Office Newsletter features updates about the GIS Office, a summary of the most recent GIS Advisory Council meeting, GIS resources,... -
State
Connecticut State Parcel Layer 2023
State of Connecticut —
The dataset has combined the Parcels and Computer-Assisted Mass Appraisal (CAMA) data for 2023 into a single dataset. This dataset is designed to make it easier for...