Analysis of structure in American agriculture often overlooks both the subtle and complex differences among farms of varying sizes within a relatively small production area. The resource components of farms of various sizes significantly affect the size and crop mix structure of each group of farms. To examine this structure-sampled farms have been grouped using cluster analysis-. The multivariate data observations are grouped without preconceived hypotheses. Statistical analysis of the results reveal that farms group somewhat by size and crop mix. However, smaller farms do vary substantially in composition from larger farms and avoid significant production of risk-oriented crops.