About Napa County
Napa County is a city located in United States, in the California region. According to the latest available data (2026), the population of Napa County is approximately 138,019 residents, making it the #596 most populous city in United States.
Globally, Napa County ranks #12,084 among the world's most populated cities.
Napa County City Statistics
| City | Napa County |
| Country |  United States |
| Population | 138,019 |
| Global Rank | #12,084 |
| Rank in United States | #596 of 867 cities |
| City Category | city |
| Region | California |
| Latitude | 38.5 |
| Longitude | -122.32 |
| Data Year | 2026 |
Where is Napa County Located?
Napa County is located in United States, in the California region, at coordinates 38.5° latitude and -122.32° longitude. Napa 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 Napa County?
The population of Napa County is approximately 138,019 residents according to the latest available data (2026).
Where is Napa County located?
Napa County is located in United States at approximately 38.5° latitude and -122.32° longitude.
Is Napa County one of the largest cities in United States?
With a population of 138,019, Napa County is one of the notable urban areas in United States. It ranks #596 out of 867 cities in the country.
