This report provides descriptive information on ethnic diversity in enrollment, degrees granted, undergraduate applicants, and employment in Colorado public institutions of postsecondary education for the years 1986 to 1990. Most of the report was compiled from information provided by institutions through a Student Unit-Record Data System. Ethnic definitions conform to federal categories: unknown, Non-Resident Alien, Black, Native American, Asian, Hispanic, and White. Highlights of the findings include the following: (1) minority enrollment increased from 10.8 percent in 1986 to 13.6 percent in 1990; (2) minorities comprised 14.5 percent of undergraduate students in 1990; (3) between 1986 and 1990 minorities were under-represented in degree attainment compared to enrollment; (4) between 1986 and 1990 the proportion of minority applications to public institutions increased from 12 percent to 15 percent; (5) non-resident aliens and Blacks had the lowest acceptance rate while Hispanics and Asians had the highest acceptance rate; (6) ethnic minorities increased their statewide representation in higher education employment from 15.2 to 16.1 percent; and (7) the job category that employed the most minorities was service/maintenance. Attachments include further information on terms and definitions, fall headcount enrollment, degrees conferred, undergraduate applicants and full-time employees. The textual analysis is supported with 28 tables and 25 figures. (JB)