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ACS: Unweighted Sample Count Population / acs b00001 popcount [Washington (State)--King County]

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Title
ACS: Unweighted Sample Count Population / acs b00001 popcount [Washington (State)--King County]
Description
Updated for 2013-17: US Census American Community Survey (2012-2016) data table for: Unweighted Count subject area. Provides information about: UNWEIGHTED SAMPLE COUNT POPULATION for the universe of: Total population. These data are extrapolated estimates only, based on sampling; they are not actual complete counts. The data is based on 2010 Census Tracts. Table ACS_B00001_POPCOUNT contains both the Estimate value in the E item for the census topic and an adjacent M item which defines the Margin of Error for the value. The Margin of Error (MOE) is the plus/minus range for the item estimate value, where the range between the Estimate minus the Margin of Error and the Estimate plus the Margin of Error defines the 90% confidence interval of the item value. Many of the Margin of Error values are significant relative to the size of the Estimate value. This table contains 1 item(s) extracted from a larger sequence table. This extracted subset represents that portion of the sequence that is considered high priority. Other portions of this sequence that are not included can be identified in the data dictionary information provided in the Supplemental Information section below. This table information is also provided as a customized layer file: B00001_AREA_POPCOUNT.lyr where the table information is joined to the 2010 TRACTS_AREA census geography on the GEOID item. Both the table and customized lyr file name do not contain the year descriptor (i.e. 2012-2016) for the current ACS series. This is intentional in order to maintain the same table name in each successive ACS update. The alias of each item's (E)stimate and (M)easure of Error value stores this year date information as beginning YY and ending YY, i.e., 'E1216' and 'M1216' followed by the rest of the alias description. In this way users of the data tables or lyr files that support field aliases can determine which ACS series is being represented by the current table contents.
Creator
King County GIS Center
Publisher
King County GIS Open Data
Temporal Coverage
Last modified 2019-01-11
Date Issued
2018-02-14
Access Rights
Public
Format
Shapefile
Language
English
Date Added
August 28, 2025

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Cite and Reference

  • Citation
    King County GIS Center (2018). ACS: Unweighted Sample Count Population / acs b00001 popcount [Washington (State)--King County]. King County GIS Open Data. https://gis-kingcounty.opendata.arcgis.com/datasets/kingcounty::acs-unweighted-sample-count-population-acs-b00001-popcount (web service)
  • BTAA Geoportal Link

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