Normalized to 2020 Boundaries

As geographic boundaries change over time, our normalized data product line adjusts for these changes to allow for apple-to-apple comparisons of census data from 1970, 1980, 1990, 2000 and 2010 to the 2020 boundaries.

We offer the full decentenial census normalized to the 2020 boundaries for 1970, 1980, 1990, 2000 and then the American Community Survery for 2010/2011.  

Our projected release dates are as follows

2010 or 2011 American Community Survey in 2020 Boundaries – Available

Summary File 1 (SF1) 2010 in 2020 Boundaries – Available

2000 Long Form (SF3) in 2020 Boundaries – Late Fall 2023

1990 Long Form (SF3) in 2020 Boundaries – Winter 2023

1980 Long Form (SF3) in 2020 Boundaries – Late Winter 2024

1970 Long Form (SF3) in 2020 Boundaries – Early Spring 2024

Neighborhood Change Database 2020 – Tract level data for a subset of about 1000 variables from 1970, 1980, 1990, 2000, 2010 and 2020 – Spring 2024