Cambridgeshire County Council's Research Group produces population and dwelling stock estimates for Cambridgeshire and Peterborough. Estimates are provided at county, district, ward and parish level for the years mid-2011 to mid-2018.

Due to ward and parish boundary changes in many of the districts since mid-2011, two sets of data files are provided for each of: population estimates by ward, population estimates by parish, dwelling stock estimates by ward and dwelling stock estimates by parish. The following ward and parish boundary changes have taken place:
• East Cambridgeshire – ward boundary changes in 2019, parish boundary changes in 2018.
• Fenland – ward and parish boundary changes in 2015.
• Huntingdonshire – ward boundary changes in 2018.
• South Cambridgeshire – ward boundary changes in 2018, parish boundary changes in 2017 and 2018.
• Peterborough - ward boundary changes in 2016.

The new ward and parish population and dwelling stock datasets provide the mid-2018 population and dwelling stock estimates according to the ward and parish boundaries that were in place as at mid-2019. The old ward and parish population and dwelling stock datasets provide the estimates based on the ward and parish boundaries that were in place at mid-2011.