USDA, Farm Services Agency
Farm Program Atlas allows downloading and mapping of county-level farm program and planted acreage data for nine major program crops (corn, grain sorghum, barley, oats, wheat, rice, cotton, peanuts, and oilseeds).
U.S. and State farm income data includes calendar-year data on direct government payments.
Farm Programs, Price Supports, Participation, and Payment Rates contains program parameters for individual commodities.
Season-Average Price Forecasts provides three Excel spreadsheet models that use futures prices to forecast the U.S. season-average price and counter-cyclical payment rate for corn, soybeans, and wheat. Users can view the model forecasts or create their own forecast by inserting different values for futures prices, basis values, or marketing weights.
WTO Agricultural Trade Policy Commitments Database is a queriable database on implementation of World Trade Organization (WTO) commitments organized for comparison across countries.
U.S. WTO Domestic Support Reduction Commitments and Notifications summarizes U.S. domestic support notifications to the WTO.