The objective of this article is to estimate historical economic surpluses for the subsectors involved in the U.S. sugar market. Annual producer and consumer surpluses were computed based on a five-equation model and 1958-87 data. In the last decade, the welfare position of cane- and beet-sugar producers has been roughly maintained, the domestic consumer surplus and the export quasi-rents to foreign countries have both declined, and quasi-rents of the corn-sweetener industry now surpass those that accrue to the cane industry and are about the same as those of the beet-sugar industry. Some policy implications are discussed.