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NCHS

National Survey of Family Growth (NSFG) Geocodes

The following table lists the geographic variables in NSFG. When applying for access to this data through the RDC, please specify the variable name in your data dictionary.

Geographic variable

Cycle 1*
1973

Cycle 2
1976

Cycle 3
1982

Cycle 4
1988

Cycle 5**
1995

Cycle 6
2002

2006-2010

2011-2015

At interview

State (FIPS code)

 na stfips76 stfips82 stfips88 stfips95 stfips02 stfips06 FIPS_State

State (name or abbreviation)

 na stab76 stab82 stab88 stab95 stab06

County (FIPS code)

 na cofips76 cofips82 cofips88 cofips95 cofips02 cofips06 FIPS_County

County (name)

 na coname06

Census tract

 na tract76 tract82 tract88 tract95 tract02 tract06

Block group

 na blkgrp76 blkgrp88 blkgrp95 blkgrp02 blkgrp06

Block

 na blk82 blk06

State and county FIPS code

 na stcofips06

Unique block group ID
(state + county + tract + block group)

 na uniqgeo02 uniqgeo06

At previous census

State (FIPS code)

 stfips95_c90 stfips02_c00 stfips06_c00 FIPS_State2010

State (name or abbreviation)

 stab95_c90 stab06_c00

County (FIPS code)

 cofips95_c90 cofips02_c00 cofips06_c00

County (name)

 coname06_c00

Census tract

 tract95_90 tract02_c00 tract06_c00

Block group

 blkgrp95_c90 blkgrp02_c00 blkgrp06_c00

Block

 blk06_c00

State and county FIPS code

 stcofips06_c00

Unique block group ID
(state + county + tract + block group)

 uniqgeo02_c00 uniqgeo06_c00

IMPORTANT NOTES:

* Geographic data for Cycle 1 are missing and unavailable.

** Cycle 5 also has geographic data based on where respondents where living at the time of the 1993 National Health Interview Survey. The available geographic variables for 1993 are the same as what is available in Cycle 5 for residence at the time of the previous Census.

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