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Introduction to Census Geography

Introduction to Census Geography. Presented by Jane Traynham and Dan Veroff SDC Boot Camp, October 13, 2009. Two Categories of Census Geography. Legal and Administrative Entities

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Introduction to Census Geography

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  1. Introduction to Census Geography Presented by Jane Traynham and Dan Veroff SDC Boot Camp, October 13, 2009

  2. Two Categories of Census Geography • Legal and Administrative Entities • Result from legal actions, treaties, ordinances, and so on. Boundaries generally accepted as provided by appropriate authorities. • Statistical Entities • Evolve from practice, usage, or need. Boundaries generally delineated using Census Bureau criteria and guidelines

  3. Census Geographic Hierarchy ZCTA: Zip Code Tabulation Area used for areas in which detailed zip code data is not available (rural areas, etc.) TAZ: Traffic Analysis Zone ANRC: Alaska Native Regional Corporation SLD: State Legislative District UGA: Urban Growth Area (Oregon) Not listed here: PUMAS (Public Use Microdata Areas)

  4. Nested GeographiesFrom Geographic Areas Reference Manual 203

  5. Hierarchy of census geography Counties are subdivided into census tracts – all tracts are unique within county

  6. Hierarchy of census geography cont’d Census tract boundaries Block group boundaries Tract 514201 split into 5142011and 5142012

  7. Census tract 514201

  8. Block group 5142011 further divided into census blocks The further in you zoom roads appear

  9. The Usual Suspects Wisconsin Dane County Madison MSA Census Tracts Madison, WI Urban Area Place: Madison City Block Groups Blocks

  10. What is a Census block? What is a Census Block? Town of Muskrat Village of Muskrat Wisconsin Southern RR Muskrat River

  11. Geography Reference Resources LINK to reference resources LINK to geo terms & concepts

  12. Questions?

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