National Agricultural Statistics Service, USDAData tables, charts, and maps documenting crop & livestock condition, production, prices, land area/value, farm finances, & environmental issues, etc.
NASS collects, summarizes, analyzes, and publishes ag production & marketing data, including # of farms and land in farms, acreage, yield, production, stocks of grains, and numerous commodities. The Census of Agriculture is conducted every 5 years to collect detailed info on the # of farms, land use, value of production, acreage of major crops, inventory of livestock & poultry, value of land, buildings, etc., plus other demographic & business issues, irrigation practices, etc.