| 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. |
