| General Election Results | House of Commons Library | 2010, 2015, 2017, 2019, 2024 | Open Parliament Licence | Aggregated general election results by UK parlimentary constituency for trend analysis. |
| Local Election Results | House of Commons Library | 2021, 2022, 2023, 2024, 2025 | Open Parliament Licence | Aggregated local election results by ward for trend analysis. |
| Population Estimates | Office for National Statistics | 2020, 2021, 2022 | Open Government Licence v3.0 | Ward-level population data estimates including age and gender used for per-capita comparisons. |
| Ethnicity | Office for National Statistics | 2021 | Open Government Licence v3.0 | Ethnic group population classification for England and Wales by local authority district. |
| Median House Price | Office for National Statistics | 1995-2023 | Open Government Licence v3.0 | Median house price paid by ward for England and Wales for trend analysis. |
| EU Referendum Results | Electoral Commission | 2016 | Open Government Licence v3.0 | EU referendum results by local authority counting area. |
| Income | Office for National Statistics | 2025 | Open Government Licence v3.0 | Annual estimates of paid hours worked and earnings for employees in England and Wales. |
| Crime | Office for National Statistics | 2025 | Open Government Licence v3.0 | Police recorded crime figures by local authority district. |
| Indices of Multiple Deprivation | Ministry of Housing, Communities & Local Government | 2019 | Open Government Licence v3.0 | Relative deprivation scores, ranks and deciles for small areas (LSOAs) in England. |
| Life Expectancy | Office for National Statistics | 2020-2022 | Open Government Licence v3.0 | Life expectancy and healthy life expectancy estimates for local areas across the UK. |
| Westminster Parliamentary Wards (Boundaries) | ONS Open Geography Portal | December 2021, 2022, 2023, 2024, May 2025 | Open Government Licence v3.0 | UK electoral ward boundaries used for map visualisation layers. |
| Local Authority Districts (Boundaries) | ONS Open Geography Portal | December 2021, 2022, 2023, 2024, May 2025 | Open Government Licence v3.0 | UK local authority district boundaries used for map visualisation layers. |
| Westminster Parliamentary Constituencies (Boundaries) | ONS Open Geography Portal | 2015, 2017, 2019, July 2024 | Open Government Licence v3.0 | UK parliamentary constituency boundaries used to match constituency-level election data to spatial boundaries. |