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Within Technical Documentation

Combined Technical Documentation
County Changes
Errata Notes
File Naming Conventions
Geographic Boundary Change Notes
Geographic Codes
Record Layouts
User Notes

2020

January 2020

Changes to Counties or County Equivalent Entities: 2020s

New Counties or County Equivalent Entities

State of Connecticut (09): Finalized adoption of the State’s nine Councils of Governments (COGs) as the county-equivalent geographic unit. For more information see: Final Change to County Equivalents in Connecticut [PDF] and the Final Federal Register Notice, Change to County Equivalents in the State of Connecticut.