About County Down
County Down is a mid-sized city located in United Kingdom, in the Northern Ireland region. According to the latest available data (2026), the population of County Down is approximately 531,665 residents, making it the #31 most populous city in United Kingdom.
Globally, County Down ranks #3,528 among the world's most populated cities.
County Down City Statistics
| City | County Down |
| Country |  United Kingdom |
| Population | 531,665 |
| Global Rank | #3,528 |
| Rank in United Kingdom | #31 of 293 cities |
| City Category | mid-sized city |
| Region | Northern Ireland |
| Latitude | 54.36 |
| Longitude | -5.94 |
| Data Year | 2026 |
Population Comparison
To put County Down's population of 531,665 into perspective:
- County Down has over 531,000 residents.
Where is County Down Located?
County Down is located in United Kingdom, in the Northern Ireland region, at coordinates 54.36° latitude and -5.94° longitude. Located in the mid-latitudes, County Down experiences distinct four-season weather patterns.
Nearby Cities
Other Cities in United Kingdom
Largest Cities in United Kingdom
| # | City | Population |
|---|---|---|
| 15 | Greater London | 8,866,180 |
| 1 | West Riding of Yorkshire | 3,873,675 |
| 3 | Sussex | 1,613,316 |
| 4 | Kent | 1,593,191 |
| 5 | Essex | 1,519,509 |
Frequently Asked Questions
What is the population of County Down?
The population of County Down is approximately 531,665 residents according to the latest available data (2026).
Where is County Down located?
County Down is located in United Kingdom at approximately 54.36° latitude and -5.94° longitude.
Is County Down one of the largest cities in United Kingdom?
With a population of 531,665, County Down is one of the notable urban areas in United Kingdom. It ranks #31 out of 293 cities in the country.
