2013-2017 ACS: Total People Reporting Single Ancestry (Based on 2010 Census Tracts)

US Census American Community Survey (2013-2017) data table for: ANCESTRY subject area. Provides information about: PEOPLE REPORTING SINGLE ANCESTRY for the universe of: TOTAL PEOPLE REPORTING SINGLE ANCESTRY. 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_B04004_TOTALANCESTRY 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 108 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. This table information is also provided as a customized layer file: B04004_AREA_TOTALANCESTRY.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. 2013-2017) 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., 'E1317' and 'M1317' 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. The next 5-year sample of ACS, representing the current year minus 1, becomes available in December of each year. For example, the next series - 2014 through 2018 - will become available at the end of 2019. The new 2017 data will be posted to the Spatial Data Warehouse by January 2019. The previous series of data is retired to the Historical Data Library geodatabase (according to the ACS series end date) from where it can be accessed if needed.