New Geographic Resources for 2020 Census Tracts & Blocks
At CTData, we are continuing to update our geographic resources following the changes to census tracts and census blocks for the 2020 Census. We’ve released three new crosswalks: one for census tracts, one for census blocks, and an updated 5 Connecticuts crosswalk. You can find these resources and more on our Geospatial Data Tools page.
2020 Census Tracts Crosswalk
This crosswalk links 879 Connecticut census tracts to towns, counties, country equivalents, ZIP codes, and 2020 PUMAs. It contains identifiers for both 2020 and 2022 FIPS codes, reflecting county-level changes. Some tracts cross multiple ZIP codes or towns, so this crosswalk is approximate. https://github.com/CT-Data-Collaborative/2022-tract-crosswalk
See this blog post to learn the differences between 2010 and 2020 census tract boundaries in Connecticut.
2020 Census Blocks Crosswalk
This crosswalk links 49,861 Connecticut census blocks to census tracts, towns, counties, country equivalents, ZIP codes, and 2020 PUMAs. It contains identifiers for both 2020 and 2022 FIPS codes, reflecting county-level changes. https://github.com/CT-Data-Collaborative/2022-block-crosswalk
See also What are census blocks? by Katy Rossiter
Five Connecticuts Crosswalk
The Five Connecticuts is a system developed by the University of Connecticut which uses socioeconomic trends such as poverty rate, household income, and more to categorize towns into five categories — Rural, Suburban, Urban Core, Urban Periphery, and Wealthy. https://github.com/CT-Data-Collaborative/five-connecticuts
Upcoming: County to County Equivalent Transition
In 2022, the Census Bureau adopted county equivalents- Connecticut's nine Councils of Government (COGs)- as county-level geographies for statistical purposes, replacing Connecticut's eight counties in Census Bureau data products. Census Bureau data and publications will transition to using the county equivalents in place of counties throughout 2023-2024. CTData will provide resources to help ease this transition in the coming months.
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