This report presents previously unreported State-level data on the structure and characteristics of irrigated farms in Arkansas, Louisiana, Florida, and the 17 Western States, which together account for 93 percent of all irrigated acres in the Nation. Irrigated farms produce about 30 percent of the sales of agricultural products from all U.S. farms. Data include distributions of irrigated farms, irrigated acres, and value of agricultural products sold from irrigated farms for a variety of farm operation and farm operator characteristics. Data are derived from a special tabulation from the 1982 Census of Agriculture.