U.S. Census Resources: Tract and Block Statistical Data

The list below illustrates the statistics available at small geographic levels for the 1940-2000 censuses. The 1940 census was the first census to divide cities of 50,000 or more inhabitants into census tracts. In 1940, New Orleans was the only city in Louisiana to have census tracts. SMSAs have been used as geographical areas of population census data since the 1910 decennial census. The only city to have census tracts outlined before 1940 was New York City in the 1910 decennial.*

1940

Tracts and Blocks: New Orleans

1950

SMSAs: Baton Rouge (incl. E. Baton Rouge Parish), New Orleans (incl. Jefferson, Orleans, and St. Bernard Parishes), Shreveport (Caddo Parish)

Tracts: New Orleans

Blocks: New Orleans, Baton Rouge



1960

SMSAs: Baton Rouge, Monroe, New Orleans, Shreveport

Tracts: Baton Rouge, Monroe, New Orleans, Shreveport

Blocks: Baton Rouge, Monroe, New Orleans, Shreveport



1970

SMSAs: Baton Rouge*, Lafayette, Lake Charles, Monroe, New Orleans, Shreveport

Tracts: Baton Rouge, Lafayette, Lake Charles, Monroe, New Orleans, Shreveport

Blocks: Baton Rouge, Lafayette, Lake Charles, Monroe, New Orleans, Shreveport

*Includes data for selected areas adjacent to the SMSA



1980

SMSAs: Alexandria, Baton Rouge, Lafayette, Lake Charles, Monroe, New Orleans, Shreveport

Tracts: Alexandria, Baton Rouge, Houma & Thibodaux, Lafayette, Lake Charles, Monroe, New Orleans, Shreveport

Blocks: Baton Rouge, Lafayette, Lake Charles, Monroe, New Orleans, Shreveport



1990

All areas in the United States are tracted and blocked.

2000

All areas in the United States are tracted and blocked.

* For more information read Factfinder for the Nation published by the U.S. Census Bureau.