topic Re: Aggregate numbers for census tracts up to the zip code level in Spatial Data Science Questions https://community.esri.com/t5/spatial-data-science-questions/aggregate-numbers-for-census-tracts-up-to-the-zip/m-p/61725#M133 <HTML><HEAD></HEAD><BODY><P>Great, Thank you!</P></BODY></HTML> Thu, 06 Jul 2017 17:58:15 GMT C_N-L 2017-07-06T17:58:15Z Aggregate numbers for census tracts up to the zip code level https://community.esri.com/t5/spatial-data-science-questions/aggregate-numbers-for-census-tracts-up-to-the-zip/m-p/61723#M131 <HTML><HEAD></HEAD><BODY><P><SPAN style="font-size: 12.0pt;">Hi, help needed! &nbsp;I need to aggregate numbers for census tracts up to the zip code level (or I would like to). The problem is, it’s not a 1:1 relationship. A census tract may overlap 1-4 zip codes. I would like to see if it’s possible in ArcGIS Online or in Desktop to do an analysis that would result in the area (or % of total area, ideally) of a census tract that is associated with each zip code. Does anyone have an idea of how to do this?</SPAN></P></BODY></HTML> Thu, 06 Jul 2017 17:27:05 GMT https://community.esri.com/t5/spatial-data-science-questions/aggregate-numbers-for-census-tracts-up-to-the-zip/m-p/61723#M131 C_N-L 2017-07-06T17:27:05Z Re: Aggregate numbers for census tracts up to the zip code level https://community.esri.com/t5/spatial-data-science-questions/aggregate-numbers-for-census-tracts-up-to-the-zip/m-p/61724#M132 <HTML><HEAD></HEAD><BODY><P>I believe this will help:&nbsp; <A class="link-titled" href="http://desktop.arcgis.com/en/arcmap/latest/tools/analysis-toolbox/how-union-analysis-works.htm" title="http://desktop.arcgis.com/en/arcmap/latest/tools/analysis-toolbox/how-union-analysis-works.htm">How Union works—Help | ArcGIS Desktop</A>&nbsp; </P></BODY></HTML> Thu, 06 Jul 2017 17:56:10 GMT https://community.esri.com/t5/spatial-data-science-questions/aggregate-numbers-for-census-tracts-up-to-the-zip/m-p/61724#M132 JoshuaBixby 2017-07-06T17:56:10Z Re: Aggregate numbers for census tracts up to the zip code level https://community.esri.com/t5/spatial-data-science-questions/aggregate-numbers-for-census-tracts-up-to-the-zip/m-p/61725#M133 <HTML><HEAD></HEAD><BODY><P>Great, Thank you!</P></BODY></HTML> Thu, 06 Jul 2017 17:58:15 GMT https://community.esri.com/t5/spatial-data-science-questions/aggregate-numbers-for-census-tracts-up-to-the-zip/m-p/61725#M133 C_N-L 2017-07-06T17:58:15Z