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I know that the block group is a polygon but the Census Gazetteer files provide a lat/long for census tracts here - https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.2010.html

Where can I get this for the census block group level?

The FCC provides an API that converts LATLONG to CENSUS BLOCK GROUP but Id like the reverse (https://geo.fcc.gov/api/census/)- maybe I'm being vacuous?

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Not sure which software you are using.

This can be accomplished by getting the centroids of the Census Block Group polygons.

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  • Thanks - this question assumes software agnostics. Does that mean I open a shapefile of the block groups from here - census.gov/cgi-bin/geo/shapefiles/… and then calculate the centroid and then export ? Im surprised someone has not already done this ..1
    – vr00n
    Nov 2, 2015 at 15:28
  • Sure. In ArcMap for instance, you would use Feature to Point and get the resulting points with lat/longs for the center of each Block.
    – Maksim
    Nov 2, 2015 at 15:30

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