The following data reports are based upon the latest Office for National Statistics (ONS) mid-year population estimates. Please note that data for the 2021 Census is now available ( 2021 Census ). The 2020 Office for National Statistics (ONS) mid-year estimate of population for County Durham was 533,149.  Use the boxes below to select the geography and then area.

Note: Reports for Clinical Commissioning Groups and Localities have been retained for historical purposes.  County Durham in now covered by a single Clinical Commissioning Group (CCG). Please refer to the County Durham report for this CCG area. Descriptions of the geographies used in these reports can be found here.