2020 Connecticut Parcels

The Connecticut (CT) Parcels 2020 dataset is distributed as a zipped file containing parcel data for all Connecticut municipalities within a single Esri file geodatabase. The data are organized by town, with each municipality represented as an independent feature class within the geodatabase. The dataset includes parcel information for all 169 Connecticut towns. Parcel boundaries and associated attributes were collected from municipal sources during the 2019-2020 period and compiled by the Connecticut Office of Policy and Management (OPM) prior to the establishment of the Connecticut GIS Office. The geodatabase was created on 11/03/2026 from these source datasets. Municipal parcel datasets can be linked to Computer-Assisted Mass Appraisal (CAMA) records containing property assessment information and other real property characteristics. Availability and completeness of CAMA-linked information may vary among municipalities. The 2020 parcel data schema is not standardized across all municipalities. Each parcel layer in this database is an independent layer representing the local parcel inventory maintained by the corresponding municipality. Field names, attribute definitions, data structure, and the availability of parcel-related information may differ from municipality to municipality. The parcel records may contain property location information, such as street addresses, map-block-lot identifiers, assessor parcel identification numbers, and other locally maintained geographic and assessment-related attributes. Users should review individual feature class schemas. More recent Connecticut Parcel and CAMA datasets are available in a standardized statewide format through the Connecticut GIS Office. These datasets have been developed using a common schema to improve consistency across municipalities and support statewide analysis workflows. Current parcel data can be accessed by searching for "parcels" on the Connecticut Open Data Portal or by visiting the Connecticut Parcels webpage at https://geodata.ct.gov/pages/parcels.

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