The decade of the 70's witnessed an expansion in U.S. cropped acreage in response to rising foreign demand. During this same period, substantial acreages of cropland were converted to non-agricultural uses. An issue arising from these land adjustments is whether available cropland will constrain agricultural production in the near future? This paper provides some insight by developing cropland requirements to meet 1985 demand for major U.S. commodities and then compares these projections with recent data in cropland availability. The results indicate that agricultural production should not be constrained by land availability at the national level, even in the event of high demand levels and slowed yield growth. When the analysis is extended to specific farm production regions, some shifts in production are suggested.