City of London

§ This page provides an overview of an England's ceremonial county. Our website has 48 such county pages.

Overview ⁞ The City of London is a unique ceremonial county and local authority district at the historic heart of London, covering just over one square mile. Often referred to as the “Square Mile,” it is the original Roman settlement of Londinium and today serves as one of the world’s leading financial centres, home to the London Stock Exchange, the Bank of England, and numerous global banks and institutions. Despite its small size, it has its own police force, the City of London Police, and an unusual system of governance headed by the Lord Mayor of London (distinct from the Mayor of London). The City blends medieval streets, historic landmarks like St Paul’s Cathedral and the Guildhall, and cutting-edge skyscrapers such as the Gherkin and the Cheesegrater. Its permanent residential population is under 10,000, but it hosts hundreds of thousands of workers and visitors each weekday, making it a major hub of commerce, law, and international trade within the UK and beyond.

Is City of London a historic county? No, the City of London is not one of the traditional historic counties. It has long been treated as a separate entity, distinct from Middlesex and the surrounding counties, with its own unique civic status.

City of London has 1 Local Authority District. The chart below shows how this compares with other counties in England.

Number of local authority districts in City of London and other counties
Number of local authority districts in City of London, compared with other counties
This county page, City of London, is a sub-page this region page: London. It zooms in to local authorities, administrative districts, and parliamentary constituencies in this county. We have this list page for easy browsing of all historic counties, ceremonial counties, and administrative counties: List of all counties in the UK.

The local government in this county is: The City of London Corporation 🔗 cityoflondon.gov.uk.

Districts in City of London

In the International Territorial Levels (ITLs) hierarchy, City of London is within or around here:

(ITL 1) London
(ITL 2) ⇒ Inner London - West
(ITL 3) ⇒⇒ Westminster and City of London

Constituencies in City of London

A constituency is a specific geographical area that elects one Member of Parliament (MP) to represent them in the House of Commons. The United Kingdom is divided into 650 parliamentary constituencies, 1 of them are in City of London.