The geographies for Demographic Changes in America: 1990-2000 include:

• Nation
• State
• County
• MCD
• Place
• Congressional District
• Zip
• MSA/CMSA
• PMSA
• American Indian Reservation

For more advanced studies that include tract and block level geographies, please see our full line of census products. In particular, the Planners Package has complete datasets of both 1990 and 2000 long form and includes all the geographic levels.