Connecticut CAMA and Parcel Layer

<p><span style='font-size:14px;'>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 database file (known as a CAMA report), to its respective regional council of governments (COG) by May 1 annually.&nbsp;The dataset has combined the Parcels and Computer-Assisted Mass Appraisal (CAMA) data for 2025 into a single dataset. This dataset is designed to make it easier for stakeholders and the GIS community to use and access the information as a geospatial dataset. Included in this dataset are geometries for all 169 municipalities and attribution from the CAMA data for all but one municipality. These data were gathered from the CT municipalities by the COGs and then submitted to CT OPM. This dataset was created on September 2025 from data collected in 2024-2025. Data was processed using Python scripts and ArcGIS Pro for standardization and integration of the data. To learn more about Parcel and CAMA in CT visit our </span><a target='_blank' href='https://geodata.ct.gov/pages/parcels' rel='nofollow ugc noopener noreferrer'><span style='font-size:14px;'>Parcels Page</span></a><span style='font-size:14px;'> in the </span><a target='_blank' href='https://geodata.ct.gov/' rel='nofollow ugc noopener noreferrer'><span style='font-size:14px;'>Geodata Portal</span></a><span style='font-size:14px;'>.</span></p><p><span style='font-size:14px;'><strong>Coordinate system:&nbsp;</strong></span></p><p><span style='font-size:14px;'>This dataset is provided in&nbsp;<strong>NAD 83 Connecticut State Plane (2011) (EPSG 2234)</strong>&nbsp;projection as it was for 2024. Prior versions were provided at &nbsp;</span>WGS 1984 Web Mercator Auxiliary Sphere (EPSG 3857).<span style='background-color:rgb(255,255,255); color:rgb(10,10,10); font-family:Arimo, &quot;Avenir Next&quot;; font-size:16px;'><span style='display:inline !important; float:none; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; word-spacing:0px;'>&nbsp;</span></span></p><p><span style='font-size:14px;'><strong>Ownership Suppression:&nbsp;</strong></span></p><p><span style='font-size:14px;'>The updated dataset includes parcel data for all towns across the state, with some towns featuring fully suppressed ownership information. In these instances, the owner’s name was replaced with the label "Current Owner," the co-owner’s name will be listed as "Current Co-Owner," and the mailing address will appear as the property address itself. For towns with fully suppressed ownership data, please note that no "Suppression" field was included in the submission to confirm these details and this labeling approach was implemented as the solution.</span></p><p><span style='font-size:14px;'><strong>New Data Fields:</strong></span></p><p><span style='font-size:14px;'><span style='line-height:107%;'>The new dataset introduces the “<strong>Property Zip</strong>” and “<strong>Mailing Zip</strong>” fields, which will display the zip codes for the owner and property.</span></span></p><p><span style='font-size:14px;'><strong>Service URL:</strong></span></p><p><span style='font-size:14px;'>In 2024, we implemented a stable URL to maintain public access to the most up-to-date data layer.&nbsp;Users are strongly encouraged to transition to the new service as soon as possible to ensure uninterrupted workflows. This URL will remain persistent, providing long-term stability for your applications and integrations. Once you’ve transitioned to the new service, no further URL changes will be necessary.</span></p><p style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px; margin-bottom:1.5rem; margin-top:0px;'><span style='font-size:1

Tags: boundaries, cadastre, cama, ct-cama, ct-cama-2025, ct-gis, ct-gis-office, ct-parcels, ct-parcels-2025, gis, parcel-boundaries, planning-cadastre, tax-parcels
Organization: State of Connecticut