There is a paucity of empirical data available on how ethnicity affects various sexual behaviors on college campuses. A questionnaire was mailed to a random sample of college students, and 1,173 students completed the questions requesting information about their sexual, contraceptive and STD‐related behavior. Minority students—Asians, Blacks, and Latinos—were oversampled in order to test numerous effects of ethnic group on selected sexual, contraceptive, and STD‐related behaviors. In general, ethnicity had little effect on the behaviors studied, especially after controlling for background variables such as socioeconomic status. However, Asians and Latinos appeared to be slightly more conservative sexually than the other groups. There is room for improvement in the sexual practices related to contraception and STDs. Anal intercourse, while not common, was far from negligible, with 14.6 percent of students having engaged in it. Condom use was low for vaginal intercourse, and even lower for anal intercourse.