Objectives of the study of Iowa's employment patterns and projections from 1940 to 1970 were: (1) to present and describe the state's industrial, occupational, and occupational-industry employment changes from 1940 to 1960, (2) to project these levels to 1970, and (3) to provide a summary statement of some employment possibilities for Iowa. Data presented were collected from 1940, 1950, and 1960 U.S. Bureau of the Census reports and other available research studies. Some findings were (1) Structural change in Iowa is basically due to rapid technological development in agriculture and the emergence of new industry, (2) Iowa's population has changed from 42.7 percent urban in 1940 to 53 percent urban in 1960, (3) From 1940 to 1960, the number of employed persons increased by 156,221, of which 135,000 were women, and (4) Professional, technical, and kindred workers were the fastest growing occupational groups during the past decade for males. Major predictions were: (1) The number of agricultural workers is expected to be surpassed by the number of workers in manufacturing by 1970, (2) The greatest employment growth in Iowa appears to lie among professional and technical occupations, and (3) Industrial requirements for labor skills, farm and nonfarm, are expected to continue to decline. A bibliography is included. (WB)