FIPS and County Code Lookup

FIPS and County Code Lookup

There is a mapping EXCEL from here http://www.schooldata.com/pdfs/US_FIPS_Codes.xls

I found the content from here http://www.huduser.gov/portal/datasets/usps_crosswalk.html

I select “ZIP-COUNTY” and “2nd Quarter 2015” I download the EXCEL file with this format.
http://www.huduser.gov/portal/datasets/usps/ZIP_COUNTY_062015.xlsx

References:
http://stackoverflow.com/questions/10081203/fips-county-code-lookup

https://github.com/bgruber/zip2fips
http://stackoverflow.com/questions/13316185/r-convert-zipcode-or-lat-long-to-county
https://www.zipinfo.com/products/cz/cz.htm
http://opendata.stackexchange.com/questions/4335/mapping-counties-to-zip-codes
http://www.huduser.gov/portal/datasets/usps_crosswalk.html