The geocoding service makes use of multiple data sources and the census data is disparate from the coordinate datasets…
The geocoding service makes use of multiple data sources and the census data is disparate from the coordinate datasets. There is not always a one to one match for the two, so the census tract and block code will not always be available. Cases for this should be very rare overall, but it may be more noticeable for some rural areas or new developments. If you encounter this issue then please contact support@serviceobjects.com with one or more example addresses so that we can investigate.