NBER

CMS' SSA to FIPS State and County Crosswalk

CMS periodically produces SSA to FIPS state and county crosswalk files. Some CMS data files have SSA state and county codes or county name rather than FIPS state and county codes. The data files below are processed to be easier for SAS and Stata use.

The Medicare Advantage (MA) Ratebook also contains SSA and FIPS county codes.

Updates and changes.


Fiscal Year or Date
Source
Stata
SAS
CSV
Desc
2017
xls
dta
sas7bdat
csv
desc
2016
xls
dta
sas7bdat
csv
desc
2015
xls
dta
sas7bdat
csv
desc
2014
xls
dta
sas7bdat
csv
desc
2013
xls
dta
sas7bdat
csv
desc
2012
xls
dta
sas7bdat
csv
desc
2011
xls
dta
sas7bdat
csv
desc
CMS did not produce SSA to FIPS state and county crosswalk files between the 2003-08-19 and 2011.
2003-08-19
zip
dta
sas7bdat
csv
desc


In the 2003-08-19 Source crosswalk file, Angoon, Alaska with SSA county code 02030 has a fips county code of 02031. This FIPS county code does not seem to exist elsewhere, and it appears that the fips county value should be 02231, so this change has been made to the SAS and Stata files.


Contact Jean Roth jroth@nber.org with questions, comments, or suggestions.

Last Update: March 6, 2018 Created by Jean Roth September 19, 2012

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