What is the relationship between ZCTAs and other statistical areas (such as census tracts) or governmental entities (such as places and counties)?
ZCTAs almost always exist within a single state but are independent of all other statistical and governmental entities except Census 2000 tabulation blocks. While data from the USPS may indicate that a given governmental entity is serviced by a single ZIP Code, that should not be taken to indicate that every household in that entity is serviced by that particular ZIP Code, nor that the indicated ZIP Code services only those addresses located within the boundaries of that governmental entity. Final Census 2000 ZCTA statistics show that 27 percent of ZCTAs cross county or county equivalent boundaries nationwide. There are 47,010 unique ZCTA-county combinations (32,038 are five-digit ZCTAs). Of these five-digit ZCTAs, 42 cross state boundaries.
Related Questions
- Is there an equivalency or comparability data product that shows the relationship between Census 2000 ZCTAs (ZIP Code Tabulation Areas) and USPS 2000 ZIP Codes?
- How will the master plan be coordinated with city, transit, and other governmental entities that are involved in planning for areas around the campus?
- What is the relationship between ZCTAs and other statistical areas (such as census tracts) or governmental entities (such as places and counties)?
