A survey of livestock producers throughout the United States showed 31 percent were members of marketing/farm supply cooperatives in 1980. An additional 18 percent used these cooperatives as nonmember patrons. Twelve percent of all livestock producer members used marketing and 28 percent used farm supply cooperatives. The greatest proportion of livestock producers holding cooperative membership were in the Northern Plains and among producers with larger farm sales. The smallest proportion holding cooperative membership were livestock producers in the South Central region and among those with smaller farm sales. Fifty-one percent of all livestock producers neither held membership in nor patronized any marketing/farm supply cooperative in 1980.