Population and Migration

This page shows all of OSR’s work on demographics and population change. This covers statistics such as census data, population estimates, births, deaths and migration.

Latest publications on Population and Migration

View all publication posts about Population and Migration
Decorative image. Coroner

Compliance review of coroners statistics

Overview  The coroners statistics present information on the number of deaths reported to coroners, post-mortem examinations and inquests held, and…

Decorative image. Pregnant belly

Compliance review of maternity and births statistics and breastfeeding statistics

Overview The two releases provide an overview of maternity and births, and breastfeeding, in Wales, including analyses of mothers’ characteristics. The Welsh…

Latest correspondence on Population and Migration

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Ed Humpherson to Mary Gregory: Response to ONS plans for mid-year population estimates

Dear Mary, Thank you for your letter of 4 March 2026 setting out the Office for National Statistics (ONS)’s revised plans for the production of mid-year population estimates for England and Wales. We note that the requirements and recommendations from…

Mary Gregory to Ed Humpherson: Plans for mid-year population estimates

Dear Ed, We are writing to update you on our plans for improving how we produce population estimates for England and Wales. Firstly, we would like to thank the Office for Statistics Regulation for its 2024 assessment on our Admin…

Alastair McAlpine to Ed Humpherson: Developing a modern statistical system – A review of Scotland’s Census 2022 – second progress update

Dear Ed, Developing a modern statistical system – A review of Scotland’s Census 2022 – second progress update I last wrote to you at the end of May to update on progress made in implementing the recommendations from our internal…

Ed Humpherson to Emma Rourke: OSR response to ONS’s follow-up letter regarding OSR’s Admin-Based Population Estimates Assessment in England and Wales

Dear Emma, OSR response to ONS’s follow-up letter regarding OSR’s Admin-Based Population Estimates Assessment in England and Wales Thank you for your letter outlining the progress your teams have made in response to the requirements detailed in our published phase…