Data for London

Find out about the Data for London programme, established by the Mayor of London and Greater London Authority.

Visit the Data for London LibraryVisit the Library

What is Data for London?

We believe in harnessing the power of data to solve complex challenges. From measuring air quality to optimising your travel journey, data can be used to improve our quality of life.

Data for London is established to make it easier for people to discover, access and share data, all in one place. The programme is set up by the Mayor of London and the Greater London Authority, ensuring citizen data is used responsibly and ethically.

Data for London provides deeper insights and prioritises the experiences of our diverse city to inform decision making. It aims to be a vital resource to researchers, policy makers and local authorities looking to deliver more effective public services for the benefit of all Londoners.

By connecting data more effectively, we can:

For Londoners: Provide assurance that data is used legally, ethically and safely; make city government more transparent through open data; receive better services and use data themselves.
For Decision-Makers: Gain deeper insights and improve decision-making on complex issues like NetZero, homelessness, or community safety.
For Data users: Improve or create better insights and services tailored for Londoners and those who serve them.
For Innovators: Cultivate innovation by fostering collaborations with the technology sector, universities, and the London community itself.

The Data for London programme also involves work on improving city-wide information governance, establishing a strong data user community to develop the platform further and taking other actions to ensure that data is shared legally, ethically and purposefully.

Check out our contact page for more details.

Keep an eye open for future updates on our activity.

Visit the Library

Visit the Data for London Library to search city data all in one place. In the library you can find data from across London to quickly and easily. With this data you can build services and solutions to improve life for Londoners.

A walk through time: the history of London’s data powerhouse

Our data story started many years ago. A pivotal moment was the creation of the London Datastore. The London Datastore provides data services and benefits to Londoners and is used by millions of people. Over the years it has evolved alongside the dynamic needs of Londoners and its data community. Join us in celebrating the milestones that shaped London into the powerhouse that it is today.

See London data milestones:

2010
London Datastore, is launched, the first data platform for a major city globally.
2011
Census data is added to the London Datastore.
2015
London Datastore wins gold for the Open Data Institute Publisher Award.
2018
Smart London Together launches to transform London into the smartest city in the world.
2020
London Datastore creates COVID-19 Dashboard, an estimated 20,000 users access this dashboard monthly.
2021
Mayor’s Manifesto for London commits to ‘harness data and emerging tech for our city’.
2022
The Mayor’s Data for London Advisory Board forms, bringing the greatest data, tech and AI minds in London together.
2025
Data for London and Data for London Library beta service launches.