An analysis of the 1980 Uganda Population Census for South Kampala through indirect techniques provided estimated 1q0 values of 0·0860, 0·0680 and 0·0774 for male infants, female infants and both sexes respectively. The estimated level of 4q1 is 0·0491. The level of adult mortality, especially from age 5 to 19, is lower than infant and child mortality. There is a clear evidence of a sex differential in mortality, males experiencing higher mortality than females. Estimates of expectation of life at birth provided further evidence of sex differences in mortality. The estimated life expectation for males is 54·7 years, for females 59·3 years, and for both sexes 57·0 years.