About Fairfax County
Fairfax County is a large city located in United States, in the Virginia region. According to the latest available data (2026), the population of Fairfax County is approximately 1,150,309 residents, making it the #44 most populous city in United States.
Globally, Fairfax County ranks #1,535 among the world's most populated cities. With over 1 million residents, Fairfax County plays an important role as an economic and cultural center in United States.
Fairfax County City Statistics
| City | Fairfax County |
| Country |  United States |
| Population | 1,150,309 |
| Global Rank | #1,535 |
| Rank in United States | #44 of 867 cities |
| City Category | large city |
| Region | Virginia |
| Latitude | 38.8347 |
| Longitude | -77.2762 |
| Data Year | 2026 |
Population Comparison
To put Fairfax County's population of 1,150,309 into perspective:
- Fairfax County has approximately 1.2 million residents.
- This makes it comparable in size to cities like Prague or Munich.
Where is Fairfax County Located?
Fairfax County is located in United States, in the Virginia region, at coordinates 38.8347° latitude and -77.2762° longitude. Fairfax County sits in the subtropics, typically enjoying warm temperatures year-round.
Nearby Cities
Other Cities in United States
Largest Cities in United States
| # | City | Population |
|---|---|---|
| 1 | Harris County | 4,731,145 |
| 2 | Los Angeles | 3,898,747 |
| 3 | San Diego County | 3,298,634 |
| 4 | Brooklyn | 2,736,074 |
| 5 | Miami-Dade County | 2,701,767 |
Frequently Asked Questions
What is the population of Fairfax County?
The population of Fairfax County is approximately 1,150,309 residents according to the latest available data (2026).
Where is Fairfax County located?
Fairfax County is located in United States at approximately 38.8347° latitude and -77.2762° longitude.
Is Fairfax County one of the largest cities in United States?
With a population of 1,150,309, Fairfax County is one of the major urban areas in United States. It ranks #44 out of 867 cities in the country.
