The nationwide state boundary file for 2025 is available as tl_2025_us_state.zip .
Offers a comprehensive Geographic Boundaries dataset that includes state and county boundaries.
Select the year and the geographic layer (e.g., "States" or "ZIP Code Tabulation Areas") to generate a download link. Census Bureau Data Download State Line zip
The Census Bureau uses , which are generalized representations of USPS ZIP code service areas.
Many states provide their own localized ZIP downloads for higher accuracy. For example: The nationwide state boundary file for 2025 is
The official state boundary lines are available through the TIGER/Line Shapefiles .
You can download these by state or for the entire nation from the Gazetteer Files or the Cartographic Boundary Files . Census Bureau Data The Census Bureau uses ,
This is the primary portal for searching and downloading tables in ZIP, Excel, or CSV formats.
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