Nigeria's 1985 population of 95,198,000 is projected to grow to 338,105,000 by the year 2025. In 1985, 48.3% of the population was aged 0-14 years, while 4.0% were over the age of 60. 38.8% and 4.6% are projected to be in these respective age groups by the year 2025. The rate of natural increase will have declined from 33.3 to 22.7 over the period. Life expectancy should increase from 48.5 to 64.5 years, the crude death rate will decrease from 17.1 to 6.8, while infant mortality will decline from 114.2 to 48.5. The fertility rate will decline over the period from 7.1 to 3.6, with a corresponding drop in the crude birth rate from 50.4 to 29.5. The 1981/2 contraceptive prevalence rate was 5.0, while the 1981/2 female mean age at 1st marriage was 18.7 years. Urban population will increase from 23.0% in 1985 to 53.0% overall by the year 2025. Immigration and emigration are considered to be acceptable by the government, while population growth, morbidity, mortality, fertility, and spatial distribution are not. Nigeria has an explicit population policy. It aims to reduce population growth, fertility, morbidity, mortality, and the rate of urbanization. Specific efforts to effect these changes include providing for family planning and maternal-child health, education, rural and urban development, enhanced women's status, and greater male responsibility. Population policy as it relates to development objectives is discussed, followed by consideration of specific policies adopted and measures taken to address above-mentioned problematic demographic indicators. The status of women and population data systems are also explored.