I have searched the Google map documentation for an option to return the US census tract, but haven't had any luck. I know they have a site where you can search for it by address census google maps. However I haven't found a way to access that service. I am looking for a google map api that at least would return the census tract. I also searched in the google maps geocoding documentation but the json result doesn't seem to return the census tract. Does anyone know if this is possible, thanks.
Try this: https://developers.google.com/maps/documentation/javascript/combining-data
Interesting is the section of Importing data from the US Census API.