Commons Library researchers publish data on a range of topics. We present our data as interactive dashboards, maps and in-depth briefings, and provide datasets for download.

We openly share our published data on this website, and encourage free and flexible re-use under the conditions of the Open Parliament Licence.

Browse by topic

  • Constituency and local area data

    Browse and compare local-level data between constituencies and other small areas on topics such as housing, health, and energy.

    Constituency and local area data
  • Economic data

    View data relating to the UK economy, including the labour market, trade, business, and public finances.

    Economic data

Browse by type

  • Data dashboards

    Interactive data dashboards on a range of topics, including the 2021 census, broadband speeds and fuel poverty.

Data for developers

  • Parliamentary APIs

    A directory of open data APIs which allow parliamentary data to be shared publicly. Topics include Commons and Lords votes, Oral and Written Questions and more.

  • Statutory instruments and treaties

    A library of queries for data on parliamentary scrutiny of statutory instruments proposed negative statutory instruments and treaties.