OpenStreetMap is a free and open geographic database of the built environment maintained and updated by a community of professionals and enthusiasts.

This resource aggregates local parcel datasets into a statewide file. The data includes typical attributes such as owner name, address, school district, assessed values, and property tax.

The USDA conducts a census of U.S. farms and ranches at five year intervals looking at “land use and ownership, operator characteristics, production practices, income, and expenditures.”