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2010 Public Use Microdata Areas (PUMAs)

2010 Public Use Microdata Areas (PUMAs). ASDC Annual Meeting November 10, 2011 Kathleen Gabler Socioeconomic Research Associate Center for Business and Economic Research Culverhouse College of Commerce. Alabama’s 2010 PUMAs. What is a PUMA?. Public Use Microdata Area

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2010 Public Use Microdata Areas (PUMAs)

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  1. 2010 Public Use Microdata Areas (PUMAs) ASDC Annual Meeting November 10, 2011 Kathleen Gabler Socioeconomic Research Associate Center for Business and Economic Research Culverhouse College of Commerce

  2. Alabama’s 2010 PUMAs

  3. What is a PUMA? • Public Use Microdata Area • “..statistical geographic areas defined for the tabulation and dissemination of decennial census and American Community Survey (ACS), Public Use Microdata Sample (PUMS) data.” • PUMS are files which contain individual records of the characteristics for a sample of persons and households.

  4. Why do PUMAs Matter? • Only sub-state geographic identifiers on the PUMS records • full range of population and housing unit responses collected on individual ACS questionnaires • Being used to publish single-year summary tables based on the American Community Survey data • age, sex, tenure, income, education, language spoken at home, journey to work, occupation, condominium status, shelter costs, vehicles available, and other subjects

  5. Defining a 2010 PUMA • PUMAs are redefined every ten years • Local agencies define PUMA boundaries • PUMAs may not cross state boundaries • PUMAs are assigned 5-digit codes that are unique within state

  6. Defining a 2010 PUMA • Must have a minimum population of 100,000 • Should have a maximum population of 200,000 • Only contiguous counties and/or census tracts may be used • Descriptive names will be assigned

  7. Changes from 2000 Census • There were actually two kinds of PUMAs • 1% or “Super” PUMAs (being done away with) • 5% PUMAs (or, simply PUMAs) • They were not assigned formal names • They could be defined in terms of counties, census tracts and/or places

  8. Alabama’s 2010 PUMAs

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