National Agricultural Workers Survey (NAWS) – The U.S. Department of Labor is the only national information source on the demographics and working and living conditions of U.S. farmworkers. Since the NAWS began surveying farmworkers in 1988, it has collected information from over 25,000 workers. The survey samples all crop farmworkers in three cycles each year in order to capture the seasonality of the work. The NAWS locates and samples workers at their work sites, avoiding the well-publicized undercount of this difficult-to-find population. During the initial contact, arrangements are made to interview the respondent at home or at another convenient location.
U.S. Department of Agriculture, National Agricultural Statistics Survey (NASS), Census of Agriculture – The census of agriculture is a complete accounting of United States agricultural production. It is the only source of uniform, comprehensive agricultural data for every county in the Nation. The census includes as a farm every place from which $1,000 or more of agricultural products were produced and sold or normally would have been sold during the census year. The census of agriculture is taken every five years covering the years ending in “2”; and “7.”