The prevalence of obesity and being overweight and the distribution of body fat in relation to blood pressure were assessed in a college population of 181 black and white US women and 124 black Nigerian women. The mean ages ranged from 18.6 to 22.4 years. Twenty-nine percent of black US women were overweight and 12.9% were obese; whereas 13.6% of white US women were overweight and 2.3% were obese. Only 18.6% of Nigerians were overweight and 1.6% were obese. More upper body fat was found among the black US women and Nigerians than among white US women. There was no significant correlation between body fat distribution and blood pressure among Nigerians. In general, among US blacks and whites, there were positive associations among body mass index, waist-hip girth measurements, and blood pressure, particularly for systolic blood pressure.