Theme: Population

Population statistics describe the demographic characteristics of the UK population. These include statistics on the size and geographic distribution of the population, on the factors driving population change (births, deaths and migration) and on topics such as families and older people.

• Topic pages

  • Population Change

    • Population Estimates
    • Population Projections

  • Migration

    • Migration within the UK
    • International Migration
    • Immigration Control and Asylum

  • Births and Fertility

    • Live Births and Stillbirths
    • Maternities
    • Conception and Fertility Rates

  • Deaths

    • Mortality Rates
    • Life Expectancies

  • Families

    • Families, Children and Young People
    • Marriages, Cohabitations, Civil Partnerships and Divorces
    • Adoptions

  • Ageing

    • Older People

Population and migration statistics are used by government for planning, monitoring and resource allocation and are of interest to a wide range of other users including commercial companies, special interest groups, academia and the general public.

Changes in society – in particular levels of mobility – mean producing population and migration statistics has become increasingly challenging. ONS is leading a substantial cross-government programme of work to improve population and migration statistics.

Products are available via the topic pages listed. Note that Population Estimates by Ethnic Group are listed under 'Population Estimates'.