Data Sources & Attribution

Data

MP profiles, biographies, election results, office terms, social media links, and portrait photographs

Source

members-api.parliament.uk

Licence

Open Parliament Licence v3.0

Contains Parliamentary information licensed under the Open Parliament Licence v3.0.

Data

Constituency demographics: population, age, ethnicity, housing tenure, economic activity, and qualifications

Source

Nomis — Official Census and Labour Market Statistics (Office for National Statistics)

Licence

Open Government Licence v3.0

Coverage

575 of 650 constituencies (England & Wales). Scottish constituencies are not yet covered.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Crown copyright.

Data

Parliamentary constituency boundaries (2024 and 2010), ward-to-constituency lookups, and MSOA-to-constituency lookups used for Census aggregation

Source

ONS Open Geography Portal

Licence

Open Government Licence v3.0

Contains OS data © Crown copyright and database right 2025. Contains Royal Mail data © Royal Mail copyright and database right 2025. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.

Data

Ward-level local election results for England (2006–2024): candidate names, party affiliations, votes, and ward identifiers

Source

DCLEAPIL v1.0 by Jason Leman, drawing on Andrew Teale's LEAP dataset and Democracy Club data

Licence

Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)

Local election data from DCLEAPIL v1.0 by Jason Leman, based on LEAP (Andrew Teale) and Democracy Club. Licensed under CC BY-SA 4.0.

Data

Live ward-level local election results for England and Wales from 2026 onwards: candidates, parties, vote counts, turnout and electorate

Source

Democracy Club — community-maintained UK electoral data project

Licence

Creative Commons Attribution 4.0 International (CC BY 4.0)

Live election results from Democracy Club, licensed under CC BY 4.0.

Data

Ward → Local Authority District → County / Unitary → Region → Country lookup (May 2024 snapshot). Used to assign each ward to its council and to derive council areas.

Source

Office for National Statistics

Licence

Open Government Licence v3.0

Data

Street-level crime reports by category, aggregated from Lower Layer Super Output Areas (LSOAs) to parliamentary constituencies

Source

data.police.uk — Home Office street-level crime and outcomes data

Licence

Open Government Licence v3.0

Coverage

575 constituencies in England & Wales, 24 months of street-level crime data across 14 crime categories

Contains police recorded crime data from data.police.uk, licensed under the Open Government Licence v.3.0. Crown copyright.

Data

Built-Up Area boundaries and LSOA-to-BUA lookups used to identify named settlements within parliamentary constituencies and calculate settlement-level population and crime rates

Source

ONS Open Geography Portal (Office for National Statistics)

Licence

Open Government Licence v3.0

Coverage

England & Wales. LSOAs not within any Built-Up Area are grouped as "Rural & dispersed" per constituency.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2025.

Data

Base map tiles used in all interactive maps

Source

OpenStreetMap

Licence

Open Data Commons Open Database License (ODbL)

© OpenStreetMap contributors. Map data licensed under ODbL.