Attachment 100: Census Bureau State and County Codes

This attachment provides coding information for the state and county variables included on the NLSY97 geocode CD.  These variables use the current Federal Information Processing Standards (FIPS) codes. For Rounds 1-7, these variables used the 1990 Census codes. Beginning in Round 8, the 2000 codes were used. There are very few changes between the two systems. This attachment presents the 2000 codes, and it also notes changes from the 1990 system where appropriate.

County Codes

• Codes for Alabama-Iowa (PDF file)
• Codes for Kansas-New York (PDF file)
• Codes for North Carolina-Wyoming (PDF file)

Errata: There are several changes to the county codes in the PDF files, as follows:

Added

Denali Borough, AK, code 068
Skagway-Hoonah-Angoon Census Area, AK, code 232
Broomfield County, CO, code 014

Deleted

Skagway-Yakutat-Angoon Census Area, AK, code 231
Clifton Forge (independent) city, VA, code 560 (added to Alleghany County, code 005)

State Codes

• Table 1: State Codes for the 50 States and Washington, D.C.
• Table 2: Codes for outlying areas and territories of the U.S. (Although no respondents have lived in an outlying area to date, this table is provided in anticipation that the codes will be needed at some point in the future).

Table 1: States of the United States (including the District of Columbia) with their assigned codes

Table 2: Outlying areas of the United States with their assigned codes