ZIP Code Tabulation Areas (ZCTAs)
The U.S. Census Bureau created ZCTAs in order to provide approximate area representations of the United States Postal
Services (USPS) ZIP Code service areas. The ZCTAs are NOT the same as the U.S. Postal Service Zip Codes in that ZCTAs
follow census block boundaries. In contrast, U.S. Postal Service ZIP Codes serve addresses with no correlation to census
block boundaries; therefore, the area covered by a ZCTA may include mailing addresses associated with ZIP Codes that are
not the same as the ZCTA.
For more information on ZCTAs visit the U.S. Census Bureau's website at:
To view maps of the United States Postal Services (USPS) ZIP Codes click on the following link: /MSDC/Zipcode_map/2000/zip00idx.shtml