Seychelles' modern population is composed of the descendants of French and later British colonizers, Africans, and Indian, Chinese, and Middle Eastern traders and is concentrated on three of its 155 islands – the vast majority on Mahe and lesser numbers on Praslin and La Digue.

The total fertility rate dropped sharply from 4.0 children per woman in 1980 to 1.9 in 2015, mainly as a result of a family planning program, free education and health care, and increased female labor force participation.

Life expectancy has increased steadily, but women on average live 9 years longer than men, a difference that is higher than that typical of developed countries.

The combination of reduced fertility and increased longevity has resulted in an aging population, which will put pressure on the government's provision of pensions and health care.

Seychelles' sustained investment in social welfare services, such as free primary health care and education up to the post-secondary level, have enabled the country to achieve a high human development index score, among the highest in Africa.