U.S. Department of Commerce


Census 2000. Block Relationship File Record Layouts


1990 Tabulation Census Block to Census 2000 Tabulation Block

Field # Maximum
Length		 Field
Description
1 2 1990 tabulation state FIPS code
2 3 1990 tabulation county FIPS code
3 6 1990 census tract/BNA number & suffix
4 4 1990 tabulation block number & suffix
5 1 1990 tabulation block part flag
6 2 2000 tabulation state FIPS code
7 3 2000 tabulation county FIPS code
8 6 2000 census tract number & suffix
9 4 2000 tabulation block number
10 1 2000 tabulation block part flag


1990 Tabulation Census Block To Census 2000 Collection Block

Field # Maximum
Length		 Field
Description
1 2 1990 tabulation state FIPS code
2 3 1990 tabulation county FIPS code
3 6 1990 census tract/BNA number & suffix
4 4 1990 tabulation census block number & suffix
5 1 1990 tabulation census block part flag
6 2 2000 collection state FIPS code
7 3 2000 collection county FIPS code
8 6 2000 collection block number & suffix
9 1 2000 collection block part flag


Census 2000 Collection Block to Census 2000 Tabulation Block

Field # Maximum
Length		 Field
Description
1 2 2000 collection state FIPS code
2 3 2000 collection county FIPS code
3 6 2000 collection block number & suffix
4 1 2000 collection block part flag
5 2 2000 tabulation state FIPS code
6 3 2000 tabulation county FIPS code
7 6 2000 tabulation census tract number & suffix
8 4 2000 tabulation block number
9 1 2000 tabulation block part flag

Source: U.S. Census Bureau
Last Revised: Thursday, 17-Jun-2010 08:21:59 EDT