Question to the Department for Transport:

To ask the Secretary of State for Transport, what data his Department holds on the number of 20 mph speed limit zones in effect in England as of 13 June 2023.

Local authorities have the power to set 20mph zones (which have traffic calming) and 20mph limits (which rely on signage).

No central record is kept of the number or length of 20mph zones and limits in England.