Using the US Census Decennial Census API, is it possible to get a list of all the Census tracts that are part of a Census place.

  • 1
    census.gov/geo/maps-data/data/baf_description.html may or may not be helpful. Note that these files assign blocks to named places, not tracts. It's possible that a single tract can be split across multiple place names.
    – user3856
    Oct 8, 2016 at 16:36

1 Answer 1


It is not possible with just the Decennial Census API, but a solution can be constructed with the Census's TIGERweb services.

In sketch, use TIGERweb REST service to get the geometry of a place, and then use that geometry with another TIGERweb REST service to get a list of tracts that intersect with a place, and then use the Decennial Census API to look up information about those tracts.

This is the road I took in this python library that allows queries of tracts, blockgroups, and blocks by place (or other arbitrary geometries).

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.