Do you have historic data?

We have the income and demographic data for zips/ZCTAs in the US from the US Census Bureau for:

  • 1980, 1990, 2000, 2011, 2012, 2013, 2014, 2015, 2016, 2017 and 2018.

We can calculate an average adjusted gross income for all zips in the US from the IRS for:

  • 1998, 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 and 2017.

Usually, we charge $200 per year for historic income data pulls. Either call Kristen at 1.800.939.2130 to discuss what you need, or complete the Custom Data pull form here: https://www.cubitplanning.com/data/buy-census-data

We and the US Census Bureau recommend against comparing across the Census’ American Community Survey 5 year datasets (2011, 2012, 2013, 2014, 2015, 2016, 2017 and 2018) with overlapping years, and here's why:

Overlapping Collection Years

The 2011 demographics are based on American Community Survey data that were collected in the years 2007, 2008, 2009, 2010 and 2011.

The 2015 demographics are based on the American Community Survey data that were collected in the years 2011, 2012, 2013, 2014 and 2015.

The 2016 demographics are based on the American Community Survey data that were collected in the years 2012, 2013, 2014, 2015 and 2016.

So there's 1 year of overlapping data between these 2 datasets (2011). In a perfect world, it would be better to compare 2011 data to 2016 data, because 2016 will be the first year that the 5 year datasets don't contain overlapping collection years for zip codes. Other geographies, like Census tracts, county subdivisions, or places were available in the 2010 5-year ACS, and are therefore comparable to 2015 5-year ACS estimates assuming their geographic boundaries remained the same or any changes are accounted for.

Now you know the challenges of comparing Census data between years. All of that said, folks still make these comparisons all of the time, and say "well, this is the best we can do with the data, time & budget limitations that we have for this particular project."

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