US Census Bureau. Foreign Trade
U.S. International Trade in Goods and Services. Includes top trading partners, trade balance by country, and historical data back to 1960 (annual) and 1992 (monthly)
Note: State data:
U. S. Imports of Goods by State of Destination, back to 2008.
U. S. Exports of Goods by State, back to 1995.
Two categories -- manufactured and non-manufactured.
Does not include specific commodities.