zip.regions: Metadata about US Zip Code Tabulated Areas (ZCTAs)
Description
The metadata is: State name, County name, County FIPS code, Core Based Statistical
Area (CBSA) id, CBSA title and
Metropolitan/Micropolitan Statistical Area (MSA) name.Details
Note that this data.frame contains duplicates, because some ZCTAs span multiple Counties and States.References
Data comes from the US Census Bureau's 2010 ZCTA to County Relationship File
(https://www.census.gov/geo/maps-data/data/zcta_rel_download.html), 2010 ZCTA to Metropolitan and Micropolitan Statistical
Areas Relationship File and the Core Based Statistical Areas (CBSAs) and Combined Statistical Areas (CSAs) Metropolitan
and Micropolitan Delineation files (http://www.census.gov/population/metro/data/def.html).