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A county is a geographic and administrative division of the United Kingdom. Counties have been the primary way of organizing English, Welsh, Scottish, and Northern Irish territory for over a thousand years — originally created as areas governed by a count or earl. Today, UK counties serve multiple purposes: they define ceremonial regions, determine local government boundaries, and appear on everything from postal addresses to passport applications.
The UK has 111 counties and equivalent areas: 46 ceremonial counties and 6 metropolitan counties in England, 22 principal areas in Wales, 32 council areas in Scotland, and 11 districts in Northern Ireland. The county system has evolved significantly over centuries, with major reforms in 1974, 1996, and 2015 reshaping boundaries and governance structures.
Not all UK counties are the same. The term "county" can refer to several different types of administrative and ceremonial divisions, which is a common source of confusion. Understanding the distinction helps when filling out official forms, determining your local council, or identifying your geographic county.
Traditional geographic counties headed by a Lord Lieutenant, used for ceremonial and geographic purposes.
Major urban conurbations (e.g. Greater Manchester). County councils abolished in 1986; services run by metropolitan boroughs.
Unitary authorities created in 1996, combining county and district functions into single councils.
Unitary authorities established under the Local Government (Scotland) Act 1994.
Local government districts reformed in 2015, replacing the previous 26-district system.
When someone asks "what county am I in?", they typically mean the ceremonial county (in England) or equivalent area. This is the county used on passport applications, formal addresses, and geographic references. Your local authority (district, borough, or unitary council) is the body that actually provides your day-to-day services like bin collection, planning permission, and council tax.
Knowing your county isn't just geographic trivia — it has practical implications for official documents, local services, and civic participation.
Required on HM Passport Office forms as your county of birth or residence.
Your county determines which council collects your council tax and provides services.
Your county and constituency determine your voting rights and elected representatives.
Royal Mail considers counties optional, but many forms and databases still require them.
Greater London is a ceremonial county, created in 1965 when the Greater London Council replaced the London County Council and absorbed parts of the historic counties of Middlesex, Kent, Surrey, Essex, and Hertfordshire. It is headed by a Lord Lieutenant and covers the 32 London boroughs plus the City of London.
The City of London — the historic "Square Mile" financial district — is technically separate from Greater London and has its own unique governance structure with the Lord Mayor of London. When filling in forms, most London residents should enter "Greater London" or simply "London" as their county.
Confusingly, some areas within Greater London's boundaries (e.g. Bromley, Croydon, Enfield) were historically in Kent, Surrey, or Middlesex. For ceremonial and modern administrative purposes, they are now part of Greater London.
Explore interactive county boundary maps and complete lists for each country in the United Kingdom.
One of the most common sources of confusion in UK local government is the overlapping terminology. Here's how the key terms relate to each other:
| Term | What It Means | Example |
|---|---|---|
| Ceremonial County | Geographic/traditional county with a Lord Lieutenant. Used on forms and addresses. | Kent, Devon, Norfolk |
| County Council | Elected council covering a ceremonial county. Handles highways, education, social care. | Kent County Council |
| District Council | Lower-tier council within a county. Handles housing, planning, waste collection. | Maidstone Borough Council (within Kent) |
| Unitary Authority | Single-tier council combining county and district functions. Common in cities. | Bristol City Council, Milton Keynes Council |
| Metropolitan Borough | Council within a metropolitan county. Functions as a unitary authority since 1986. | Manchester City Council (within Greater Manchester) |
In practice, most people interact with their district or unitary council for everyday services (bins, planning, council tax), while their ceremonial county appears on official documents and formal addresses.
The answer depends on which type of county you count:
If you count historic counties (the ancient counties before modern boundary changes), England alone has 39 traditional counties — some of which, like Middlesex and Westmorland, no longer exist as administrative units but retain strong cultural identity.
The United Kingdom is divided into 111 counties and administrative areas across England, Wales, Scotland and Northern Ireland. Knowing which county you live in is important for everything from filling in forms and applying for services to understanding local government boundaries.
England has 46 ceremonial counties, which are the traditional geographic divisions used for official purposes such as Lord Lieutenancies, postal addresses and cultural identity. These include well-known counties like Yorkshire, Devon, Kent and Greater London. Wales is divided into 22 principal areas, Scotland into 32 council areas, and Northern Ireland into 11 districts.
It's important to understand the difference between ceremonial and administrative counties. Ceremonial counties (also called geographic counties) are the traditional, historic boundaries that most people think of when they hear "county." Administrative counties are the actual local government areas, which were reorganised in 1974 and again in the 1990s. For example, the ceremonial county of Yorkshire contains several administrative areas including North Yorkshire, West Yorkshire, South Yorkshire and East Riding of Yorkshire.
The quickest way to find which county you're in is to enter your postcode in the search box above. Every UK postcode maps to a specific county or administrative area. You can also browse all counties by country using the links below, or let our tool auto-detect your county based on your internet connection.
The largest county in England by area is North Yorkshire, covering approximately 8,654 square kilometres of countryside including the Yorkshire Dales and North York Moors national parks. The smallest county in England is Rutland, at just 382 square kilometres, located in the East Midlands. By population, Greater London is by far the largest with over 8.8 million residents, while Rutland is also the least populated with around 41,000 people.
Other notably large counties include Cumbria (6,768 km²), Devon (6,707 km²) and Lincolnshire (5,921 km²). Among the smallest are the City of Bristol (110 km²) and the Isle of Wight (380 km²).
England has 46 ceremonial counties, including well-known ones like Yorkshire, Devon, Kent, Cornwall and Greater London. These are the traditional geographic counties used for Lord Lieutenancies and cultural identity.
The United Kingdom has 111 counties and administrative areas in total: 46 in England, 22 principal areas in Wales, 32 council areas in Scotland, and 11 districts in Northern Ireland.
London is in Greater London, which is a ceremonial county in England. Greater London contains 33 local authority areas including the City of London and 32 London boroughs such as Westminster, Camden and Greenwich.
The largest county in England by area is North Yorkshire, covering approximately 8,654 square kilometres. By population, Greater London is the largest with over 8.8 million residents.
Ceremonial counties (also called geographic or traditional counties) are the historic boundaries used for cultural identity and official functions like Lord Lieutenancies. Administrative counties are the actual local government areas created by reorganisations in 1974 and the 1990s. For example, the ceremonial county of Yorkshire contains several administrative areas.
We use Cloudflare's global network to estimate your location from your IP address and match it to a UK county. No browser location permissions are needed. For the most accurate result, enter your full postcode.
The smallest county in England is Rutland, covering just 382 square kilometres in the East Midlands. It is also the least populated ceremonial county with around 41,000 residents.
The easiest way is to enter your UK postcode in the search box above. Every postcode maps to a specific county. You can also let our tool auto-detect your county based on your internet connection, or browse all counties by country.
Use your ceremonial county (in England) or equivalent area. This is the geographic county for your address, which our tool identifies from your postcode. If you live in a metropolitan area like Greater Manchester, use that as your county.
Royal Mail does not require a county in postal addresses — the postcode is sufficient for accurate delivery. However, many official forms, online shops, and databases still include a county field. When in doubt, include it.
A county is a geographic/ceremonial area (e.g. Kent), while a council is an elected local government body that provides services. Some counties have a county council (e.g. Kent County Council), while others are divided into unitary authorities that combine county and district functions.
Ceremonial counties are the 46 geographic counties of England, each headed by a Lord Lieutenant appointed by the Sovereign. They are used for official, ceremonial, and geographic purposes. Ceremonial county boundaries were formalised in the Lieutenancies Act 1997.
Boundary changes — particularly the major 1974 reorganisation — moved many areas between counties. For example, Bournemouth was moved from Hampshire to Dorset in 1974. Some areas have strong historical identity with a previous county. Our tool shows current ceremonial county boundaries.
Significantly. The current system dates largely from the Local Government Act 1972 (implemented 1974), with further changes in 1986 (metropolitan county councils abolished), 1996 (Welsh and Scottish reorganisation), and ongoing unitary authority creation. Historic county boundaries, which predate these reforms, still hold cultural significance.