• subcategory values not adding to 100%

    Hello,

    I am doing a research project using ACS 2010 5 year estimates. I have downloaded education files for my census tracts of interest and I found that for many of my selected tracts, the given education subcategories do not always add to 100%. Has anyone…

  • Population data (measuring segregation)

    We are collecting town level data for the state of Connecticut and wanted to construct a measure of racial segregation in each town. I was planning to create a measure of non-white share of the population [(total population - white population)/total pop…

  • Documentation Supporting the 2021 American Community Survey (ACS) 1-Year Estimates Now Available

    We are pleased to announce the first release of documentation in support of the 2021 American Community Survey 1-year estimates scheduled for release on Thursday, September 15, 2022. This documentation offers ACS data users the opportunity to prepare…

  • RE: Joining ACS 2015 Data with Census Block Shape files 2015

    I'm not sure which data tables you are using from ACS 2015, but there is some data suppression for geographies where the margins of error are larger than the estimates. You can see an explanation and list of affected tables here: www.census.gov/…
  • RE: Median Family Income at the tract level: MSA/MD statewide & non-MSA/MD

    Hi Joe and all.  I try not to make pitches for Social Explorer in this group, but we our systems allows one to get a median income for any combined area.  The way it works is that it uses the brackets for income and adds up all of the cases in each bracket…

  • RE: 1-year estimates at census tract level

    I hate to say it, but if you're looking for very subtle changes at a small geography, it could be tough to use any ACS data. The margins of error are fairly high, and any tricks you might use to estimate higher 1 year estimates to the tract level will…
  • RE: Reweighting ACS PUMS Data to fit two external control totals

    If you want to use R (which is free) the mipfp package does this for a set of multidimensional marginal tables.  If you have a lot of variables or marginal tables,  I have an R program (function) with the same arguments as the mipfp package that calls a…

  • RE: Combining 1-year supplementals

    Hi Lisa -

    There is also a more focused webinar by Alicia VanOrman of PRB, Nate Ramsey of US Dept of Education, and Dave Hubble... That webinar left me feeling more confident in options for aggregating multiple years of data:
    acsdatacommunity.prb.org…
  • RE: How to Interpret ACS 5-Year Estimates

    Hi Todd,

    Others may be able to explain it better, but the way I usually explain the 5-year estimates is that they are period estimates. They are estimates created from surveys collected throughout the 5-year period. So basically you could have responded…