Data Notes

Understanding geographies

• 2021 Census geographies (pdf, 2,738KB)
• Middle Layer Super Output Areas (MSOAs) (pdf, 78KB)

Understanding economic data

• Standard Industrial Classification (SIC) (pdf, 124KB)
• Which business data? (pdf, 100KB)
• Which unemployment data? (pdf, 371KB)

Office for National Statistics (ONS) methodology notes

• Protecting personal data in Census 2021 results