These are the 2027-designation tracts listed by Treasury. This edition covers all 50 states, the District of Columbia and five U.S. territories. The totals above are calculated from the workbook, including 3,982 Non-Rural tracts. Treasury source

Use the list to research geography. A designation does not establish that a property, fund or investor qualifies for tax benefits, and it is not an endorsement of investment quality. The IRS specifies the 2020 census tract geography for this round. Treasury’s published identifiers are preserved exactly; Connecticut’s county-equivalent recoding means they are not all unchanged original 2020 GEOIDs. IRS Revenue Procedure 2026-14, §3.01(3) · Connecticut identifier guidance