There has been an increasing interest over the last several years among agricultural economists and statisticians in population projections, including regional trends in their probable effect upon geographic shifts or regional rates of increase in farm production. In this article, Jacob S. Siegel of the Bureau of the Census joins with Margaret Jarman Hagood of the Bureau of Agricultural Economics in developing population projections to 1975 for each of the major geographic regions of the United States, consistent with the Census Bureau's recent population projections to 1960 for the United States and unofficial extensions of these projections to 1975. This cooperative effort represents a further contribution by Dr. Hagood to a field to which she has contributed during recent years and a beginning of work on regional projections by the Bureau of the Census.-O.V. Wells