This tool lets you convert Connecticut census tracts, as defined by 2010 Census, into towns where these tracts are located. In the input area, type one or more tract numbers. They can be short (eg 303 for Darien) or long (9007610100 for Clinton or 1400000US09001220200 for New Fairfield). Keep it one per line. Press the arrow button to convert.
You can also download a spreadsheet powering this tool, or check out the interactive map to see how new 2020 tract boundaries are different from 2010 boundaries.