In U.S. schools, approximately 30 percent of the enrolled students in 1990-91 were racial-ethnic minorities. Principals must be skilled in incorporating this diversity into supportive climates for learning. Principals who themselves are members of racial-ethnic minority groups may serve as role models for staff and students in schools with high or low proportions of minority pupils. This document reports on the overall numbers of minority principals and the types of schools in which they are working. Data are from the 1990-91 Schools and Staffing Survey (SASS), conducted by the National Center for Education Statistics (NCES). In 1990-91, there were about 12,600 minority principals in the nearly 105,000 schools in the United States. Findings indicate that proportionally, more minorities worked as principals in public versus private schools. Minority principals in both public and private schools were concentrated in central cities and in schools with high percentages (50 percent or higher) of minority enrollments. Minority public school principals were slightly overrepresented in elementary schools. Four tables are included. (LMI)