-
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 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
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
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... -
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
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
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
State of Connecticut —
Pursuant to Section 7-100l of the Connecticut General Statutes, each municipality is required to transmit a digital parcel file and an accompanying assessor’s... -
State
Connecticut Housing Data Hub
State of Connecticut —
The Connecticut Housing Data Hub is a public resource developed by the Office of Policy and Management (OPM), Department of Housing (DOH), and Department of Economic... -
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
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
CT Public 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
2023 Connecticut Buildings (beta)
State of Connecticut —
Lidar derived buildings from April, 2023 flight across the entirety of CT. -
State
ConnCRIS Public Viewer Map
State of Connecticut —
This map contains layers for above ground resources, district polygons, and a presence/absence archaeological grid for the state of the Connecticut. -
State
Broadband Data by Block - 2023
State of Connecticut —
This feature layer includes all data available at the block level - no adoption data is available at this level.-------The Connecticut Broadband Availability and... -
State
(delete this block layer) 2024 Availability by Block (Unserved and Underserved Locations)
State of Connecticut —
Link to block layer: Connecticut Broadband Availability Data by Block 2024 -
State
Connecticut Broadband Availability Data by Town 2024
State of Connecticut —
Link to block layer: Connecticut Broadband Availability Data by Block 2024 -
State
2023 Connecticut 5' Contours (beta)
State of Connecticut —
Source: 1 foot contours were generated for each production block from the final bare earth DEMs using ArcGIS software. Using ArcGIS software, the contours were... -
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...