Contact:\\u00a0 District of Columbia, Office of Planning.\\u00a0 Email:\\u00a0\\u00a0planning@dc.gov
Geography:\\u00a0\\u00a0District of Columbia
Current Vintage:\\u00a02023
ACS Table(s):\\u00a0DP02
Data downloaded from:\\u00a0Census Bureau's API for American Community Survey\\u00a0
Date of API call:\\u00a0January 2, 2025
National Figures:\\u00a0data.census.gov
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The United States Census Bureau's American Community Survey (ACS):
This ready-to-use layer can be used within ArcGIS Pro, ArcGIS Online, its configurable apps, dashboards, Story Maps, custom apps, and mobile apps. Data can also be exported for offline workflows. Please cite the Census and ACS when using this data.
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Data Note from the Census:
Data are based on a sample and are subject to sampling variability. The degree of uncertainty for an estimate arising from sampling variability is represented through the use of a margin of error. The value shown here is the 90 percent margin of error. The margin of error can be interpreted as providing a 90 percent probability that the interval defined by the estimate minus the margin of error and the estimate plus the margin of error (the lower and upper confidence bounds) contains the true value. In addition to sampling variability, the ACS estimates are subject to nonsampling error (for a discussion of nonsampling variability, see\\u00a0Accuracy of the Data).\\u00a0 The effect of nonsampling error is not represented in these tables.
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Data Processing Notes:
This layer is updated automatically when the most current vintage of ACS data is released each year, usually in September. The layer always contains the latest available ACS 5-year estimates. It is updated annually within days of the Census Bureau's release schedule.\\u00a0Click here\\u00a0to learn more about ACS data releases.
Boundaries come from the\\u00a0US Census TIGER geodatabases. Boundaries are updated at the same time as the data updates (annually), and the boundary vintage appropriately matches the data vintage\\u00a0as specified by the Census. These are Census boundaries with water and/or coastlines clipped for cartographic purposes. For census tracts, the water cutouts are derived from a subset of the 2010 AWATER (Area Water) boundaries offered by TIGER. For state and county boundaries, the water and coastlines are derived from the coastlines of the 500k\\u00a0TIGER Cartographic Boundary Shapefiles. The original AWATER and ALAND fields are still available as attributes within the data table (units are square meters).\\u00a0
Field alias names were created based on the\\u00a0Table Shells\\u00a0file available from the\\u00a0American Community Survey Summary File Documentation page.
Data processed using R statistical package and ArcGIS Pro.
Margin of Error was not included in this layer but is available from the Census Bureau.\\u00a0\\u00a0Contact the Office of Planning for more information about obtaining Margin of Error values.