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ZIP Code Boundaries and Centroids Release Notes

Product type
Data
Portfolio
Enrich
Product family
Enrich Boundaries > Postcode and Administrative Boundaries
Product
ZIP Code Data > ZIP Code Boundaries and Centroids
Version
Latest
ft:locale
en-US
Product name
ZIP Code Boundaries and Centroids
ft:title
ZIP Code Boundaries and Centroids Release Notes
Copyright
2026
First publish date
2008
ft:lastEdition
2026-05-04
ft:lastPublication
2026-05-04T18:01:08.643000
L1_Product_Gateway
Enrich
L2_Product_Segment
Data
L3_Product_Brand
Precisely Boundaries
L4_Investment_Segment
Precisely Boundaries
L5_Product_Group
Postcode & Admin Boundaries
L6_Product_Name
US Postal

In 2022, the US Census Bureau replaced the original eight counties in Connecticut with 9 new planning regions that are considered county equivalents. These planning regions have new names and FIPS codes. Because Precisely relies on USPS to provide a single county value for each ZIP Code and because the USPS has not yet made this change to their source data, a future release of ZIP Code Boundaries and Centroids will be populated with this information.