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American Community Survey 2017
  -- 1-Year Public Use Microdata Sample (PUMS)

October 2018. Public Use Microdata Sample (PUMS) files are datasets that contain a sample of individual respondent data for statistical surveys. For ACS 2017, the files contain the full range of population and housing unit responses collected on individual ACS questionnaires, for a subsample of ACS housing units and group quarters persons.

PUMS files enable the development of custom estimates/analyses for subject matter not published as summary statistics based on a sample of actual ACS responses. The low level geography for which PUMS estimates can be developed are the Public Use Microdata Areas (PUMA). PUMAs, generally comprised of a set of continuous census tracts, have a population of 100,000 or more. The 2,378 PUMAs cover the U.S. wall-to-wall and are static geographic areas through the 2010s. Larger population counties are often comprised of many PUMAs. Los Angeles county has 69 PUMAs. PUMS files also enable microdata analysis not possible with summary statistic data.

Each record in the PUMS file represents a single person (person file) or a single housing unit (household file). In the person-level file, individuals are organized into households, making possible the study of people within the contexts of their families and other household members. 1-year PUMS files, such as 2017, contain data on approximately one percent of the U.S. population. 5-year PUMS files, covering a five-year period, such as 2013-2017, contain data on approximately five percent of the U.S. population.

This section is updated periodically. Register to receive updates.

American Community Survey
The American Community Survey (ACS) provides data essential to assess where we are, how things have changed and how things might change in the future down to the sub-neighborhood level. The ACS is a nationwide survey conducted by the Census Bureau designed to provide annually updated demographic-economic data for national and sub-national geography. ACS provides a wide range of important data about people and housing for every community across the nation. The results are used by everyone from planners to retailers to homebuilders and issue stakeholders like you. ACS is a primary source of local data for most of the 40 topics it covers, such as income, education, occupation, language and housing. ProximityOne uses ACS to develop current estimates on these topics and 5-year projections. The PUMS data are one of several data resources produced from the ACS.

ACS Data Release Dates
  • 2017 ACS 1-year estimates .. September 13, 2018
    .. estimates for areas 65,000 population and over
  • 2017 ACS 1-year PUMS data .. this section .. October 18, 2018
    .. microdata data for custom estimates and individual modeling
  • 2017 ACS 1-year supplemental estimates .. October 18, 2018
    .. selected 1 year estimates for areas 20,000 population and over
  • 2017 ACS 5-year estimates .. December 6, 2018
    .. estimates for all areas down to block group level
  • 2017 ACS 5-year PUMS data .. January 17, 2019
    .. microdata data for custom estimates and individual modeling

Custom Demographic Estimates
Use the CV XE Crosstabs tool to develop custom demographic estimates using the PUMS data for PUMAs, states and the U.S. Save the custom estimates data to file and optionally integrate those data into a PUMA or state shapefile for mapping and pattern analysis using the CV XE GIS software.

Related Sections
  • 2010 Public Use Microdata Areas (PUMAs)
      ... geographic areas identified in the PUMS data files
  • Public Use Microdata Sample (PUMS) Files
  • PUMA Summary Statistic Data
      ... 2010 vintage PUMA summary statistic data, based on the ACS 2012 1-year estimates
        access via these interactive tables:
      - General Demographics
      - Social Characteristics
      - Economic Characteristics
      - Housing Characteristics
      ... 2017 ACS 1-year PUMA summary statistic data, now available; contact us for details

  • ACS 2017 Questionnaire
  • ACS 2017 PUMS Documentation
  • 2017 1-year PUMS Subjects PDF
  • 2017 1-year PUMS Code Lists XLS
  • 2017 1-year PUMS Top and Bottom Coded Values PDF -- to be updated 10/18/18
  • 2017 1-year PUMS Data Dictionary PDF

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Support Using these Resources
Learn more about accessing and using demographic-economic data and related analytical tools. Join us in a Data Analytics Lab session. There is no fee for these one-hour Web sessions. Each informal session is focused on a specific topic. The open structure also provides for Q&A and discussion of application issues of interest to participants.

Additional Information
ProximityOne develops geodemographic-economic data and analytical tools and helps organizations knit together and use diverse data in a decision-making and analytical framework. We develop custom demographic/economic estimates and projections, develop geographic and geocoded address files, and assist with impact and geospatial analyses. Wide-ranging organizations use our tools (software, data, methodologies) to analyze their own data integrated with other data. Follow ProximityOne on Twitter at Contact us (888-364-7656) with questions about data covered in this section or to discuss custom estimates, projections or analyses for your areas of interest.

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