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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

At interview

State (FIPS code)

na

stfips76

stfips82

stfips88

stfips95

stfips02

stfips06

State (name or abbreviation)

na

stab76

stab82

stab88

stab95

stab06

County (FIPS code)

na

cofips76

cofips82

cofips88

cofips95

cofips02

cofips06

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

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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