About Fairfield County
Fairfield County is a city located in United States, in the Ohio region. According to the latest available data (2026), the population of Fairfield County is approximately 158,921 residents, making it the #509 most populous city in United States.
Globally, Fairfield County ranks #10,701 among the world's most populated cities.
Fairfield County City Statistics
| City | Fairfield County |
| Country |  United States |
| Population | 158,921 |
| Global Rank | #10,701 |
| Rank in United States | #509 of 867 cities |
| City Category | city |
| Region | Ohio |
| Latitude | 39.75 |
| Longitude | -82.63 |
| Data Year | 2026 |
Where is Fairfield County Located?
Fairfield County is located in United States, in the Ohio region, at coordinates 39.75° latitude and -82.63° longitude. Fairfield 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 Fairfield County?
The population of Fairfield County is approximately 158,921 residents according to the latest available data (2026).
Where is Fairfield County located?
Fairfield County is located in United States at approximately 39.75° latitude and -82.63° longitude.
Is Fairfield County one of the largest cities in United States?
With a population of 158,921, Fairfield County is one of the notable urban areas in United States. It ranks #509 out of 867 cities in the country.
