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American Community Survey

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1-Year Data Series

ACS data can provide a unique picture of local communities by providing information on indicators such as:

  • Household income levels
  • Age and education level of a population
  • Race and ethnic makeup of a community
  • How a population has changed over time

The 1-year estimates for the City of Seattle provide the most current information available.

What Does Seattle Look Like in 2011?

2011 Narrative Profile for Seattle

1-Year Estimates

  • Data collected over a 12-month period
  • Available for:
  • Smallest sample, less reliable, most current
  • Best used when:
    • Currency is more important than precision
    • Analyzing large populations

This data series is published by the U.S. Census Bureau as four individual data profiles:

These profiles have been combined into one tabbed Excel file for each individual geography.

Years                Geography
2011 | Seattle | PUMA’s: 1801 | 1802 | 1803 | 1804 | 1805
2010 | Seattle | PUMA’s: 1801 | 1802 | 1803 | 1804 | 1805
2009 | Seattle | PUMA’s: 1801 | 1802 | 1803 | 1804 | 1805
2008 | Seattle | PUMA’s: 1801 | 1802 | 1803 | 1804 | 1805
2007 | Seattle | PUMA’s: 1801 | 1802 | 1803 | 1804 | 1805
2006 | Seattle | PUMA’s: 1801 | 1802 | 1803 | 1804 | 1805
2005 | Seattle | PUMA’s: 1801 | 1802 | 1803 | 1804 | 1805

Caution: Please see the ACS data issues page for an understanding of the changes in population control totals for the 2010 series.

To access the full range of available ACS data products, visit the Census Bureau’s American FactFinder online data portal.

What is a PUMA?
There are five PUMAs (public use microdata areas) in Seattle. A PUMA is a decennial census area for which the U.S. Census Bureau provides specially selected extracts of raw data from a small sample (5-percent) of population and housing unit records. The data is from the American Community Survey and is screened to protect confidentiality. These extracts are referred to as ‘‘public use microdata sample’’ files. They allow you to create your own statistical tabulations and data summaries. PUMAs are delineated uniquely within each state and comprise areas that contain at least 100,000 people.

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