Many states provide their own localized ZIP downloads for higher accuracy. For example:
This is the primary portal for searching and downloading tables in ZIP, Excel, or CSV formats.
For relating ZIP codes to other geographies (like counties or states), the HUD-USPS ZIP Code Crosswalk API allows you to download crosswalk data for specific states or for all states in a specific quarter. 3. State-Specific Reports & GIS Data
Many states provide their own localized ZIP downloads for higher accuracy. For example:
This is the primary portal for searching and downloading tables in ZIP, Excel, or CSV formats.
For relating ZIP codes to other geographies (like counties or states), the HUD-USPS ZIP Code Crosswalk API allows you to download crosswalk data for specific states or for all states in a specific quarter. 3. State-Specific Reports & GIS Data