Having done a lot of research into this for a project in the US, the issue is not that they aren’t available but that each county distributed their GIS data in

Having done a lot of research into this for a project in the US, the issue is not that they aren’t available but that each county distributed their GIS data in a different format. Some have online portals with the GIs data, some have only paper records, and some counties are missing information all together. There are companies here that work to consolidate that information but it hey charge exorbitant fees to access the data.