Census Questions & Concepts

• Enumeration form facsimiles and text of questions. 1850-2000. - (IPUMS)
• Measuring America: The Decennial Censuses From 1790 t0 2000. - (Census)
  Questionnaires, instructions to enumerators, histories of individual censuses. (pdf) (16MB)
• Glossary of Census Terms - (American FactFinder)

Census Geography and Codes

• Census Geography Diagram (pdf) - (Census Bureau)
• Geographic Terms & Concepts (pdf) - (Census Bureau)
• Cure for Common Codes - (Missouri Census Data Center)
  "Tables of commonly used geographic codes (mostly FIPS) organized by state for the U.S. "
• MABLE/Geocorr2K - (Missouri Census Data Center)
  "Lets you generate geographic correspondence files showing how geographic areas overlap (e.g. how ZIP codes relate with counties and/or school districts.)
• Master Area Geographic Glossary Of Terms - (Missouri Census Data Center)
  
• PUMA Page - (Missouri Census Data Center)
  
• Cartographic Boundary Files - (Census Bureau)
  Download selected Boundary Files for use in a Geographic Information System (GIS)
• Metropolitan and Micropolitan Statistical Areas and Definitions - Current lists
• Historical Metropolitan Area Definitions

Census Technical Documentation

• Census Documentation - (Social Explorer)
  Links to Census technical documentation from 1960 - 2000, and Bogue Files Documentation 1940-1960.