How can I obtain latitude and longitude numbers for census tracts? I would think that this lat/long address would be the centerpoint for the census tract.
Census TIGER shapefiles have columns with centroid coordinates. You can download them here: https://www.census.gov/cgi-bin/geo/shapefiles/index.php?year=2021&layergroup=Census+Tracts
If you're not able to use shapefiles, you can open just the .dbf file in the package in a spreadsheet program like Excel.