PUMS files have state-level Census 2000 data containing individual records of the characteristics for a 1 percent sample of people and housing units.
The PUMS files contain geographic units called super-Public Use Microdata Areas (super-PUMAs), a new geographic entity for Census 2000. The state files, which may contain one or more super-PUMAs, include geographic equivalency files that show the relationship between the super-PUMA and standard Census 2000 geographic concepts (e.g., counties, etc.). The super-PUMAs are made up of a Public Use Microdata Area (PUMA) or group of contiguous PUMAs (each PUMA must have a minimum of 100,000 population). PUMAs are only identified on the 5-percent files and not on the 1-percent files
PUMS files have state-level Census 2000 data containing individual records of the characteristics for a 5 percent sample of people and housing units.
The PUMS files contain geographic units known as super-Public Use Microdata Areas (super-PUMAs) and Public Use Microdata Areas (PUMAs). Each super-PUMA contains a minimum population of 400,000 and each PUMA contains a minimum population threshold of 100,000. Geographic equivalency files that show the relationship between the PUMA and standard Census 2000 geographic concepts (e.g., counties, etc.) are included.
Migration for the Population 5 Years and Over: 2000
Source: Census 2000, special tabulation
Adopted Children and Stepchildren: 2000
Characteristics of the 2.1 million adopted children and 4.4 million stepchildren of householders as estimated from the Census 2000 sample.
Employment Status of the Population in Households: 2000
Source: Census 2000, special tabulation