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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
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
CT Congressional Districts
State of Connecticut —
This feature layer represents the boundaries of Connecticut's congressional districts based on the latest redistricting process following the 2020 Census. More... -
State
ConnCRIS User Guide
State of Connecticut —
The Connecticut State Historic Preservation Office (SHPO) is pleased to provide the ConnCRIS Public Resource Viewer, an online application for Connecticut’s cultural... -
State
Opportunity Zones
State of Connecticut —
These points are directly sourced from the National Historic Landmarks, National Register, State Register, Local Historic Districts, Local Historic Places, Historic... -
State
CT Counties
State of Connecticut —
This CT Counties layer consists of individual polygons representing each of the 8 counties that make up the state of Connecticut. This feature layer is directly... -
State
Above Ground Resources
State of Connecticut —
These points are directly sourced from the National Historic Landmarks, National Register, State Register, Local Historic Districts, Local Historic Places, Historic... -
State
Public Historic Districts
State of Connecticut —
The boundaries of the district polygons are both modified and unmodified pre-existing polygons provided by NPS and SHPO, as well as new, previously unmapped... -
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
CT Full State
State of Connecticut —
This CT Full State layer consists of two individual polygons representing the land and Long Island Sound borders that make up the state of Connecticut. This land... -
State
National Register District
State of Connecticut —
The boundaries of the district polygons are both modified and unmodified pre-existing polygons provided by NPS and SHPO, as well as new, previously unmapped... -
State
VetRep Data
State of Connecticut —
This feature layer contains contact and location information for Municipal Veterans Representatives across Connecticut, as designated under Connecticut General... -
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
CT Senate Districts
State of Connecticut —
This feature layer represents the boundaries of Connecticut's Senate districts based on the latest redistricting process following the 2020 Census. More information... -
State
Local Historic District
State of Connecticut —
The boundaries of the district polygons are both modified and unmodified pre-existing polygons provided by NPS and SHPO, as well as new, previously unmapped... -
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... -
State
Connecticut Broadband Availability Data by Block 2024
State of Connecticut —
Public Act 21-159 established a state goal of universal access to 1000 Mbps download and 100 Mbps upload across the State of Connecticut. This map shows progress to... -
State
CT DCF Region Boundaries
State of Connecticut —
This is a boundary file showing the catchment area for which each of the 6 DCF Regions is responsible. Catchment areas are comprised of complete Towns, but not... -
State
Connecticut CAMA and Parcel Layer 2024
State of Connecticut —
Coordinate system Update:Notably, this dataset will be provided in NAD 83 Connecticut State Plane (2011) (EPSG 2234) projection, instead of WGS 1984 Web Mercator... -
State
National Historic Landmark District
State of Connecticut —
The boundaries of the district polygons are both modified and unmodified pre-existing polygons provided by NPS and SHPO, as well as new, previously unmapped...