The objective of this study was to estimate the annual incidence and cost of nonfatal farm youth injury in the United States for the period 2001-2006. The authors used 2001-2006 Childhood Agricultural Injury Survey data to estimate the annual incidence of farm youth nonfatal injury. To estimate the costs for injuries suffered by youth working/living on the farm, the number of injuries was multiplied by published unit costs by body part, nature of injury, and age group. The annual number of nonfatal injuries to youth (ages 0-19) on farms in 2001-2006 was 26,570. The annual cost of nonfatal farm youth injuries was $1 billion (in 2005 dollars), with 26% of costs related to working on the farm and 47% on beef cattle farms. Around 9.3% of the cost was medical costs, 37.2% work and household productivity loss, and 53.5% quality of life loss.