About Vacaville
Vacaville is a city located in United States, in the California region. According to the latest available data (2026), the population of Vacaville is approximately 102,386 residents, making it the #846 most populous city in United States.
Globally, Vacaville ranks #15,348 among the world's most populated cities.
Vacaville City Statistics
| City | Vacaville |
| Country |  United States |
| Population | 102,386 |
| Global Rank | #15,348 |
| Rank in United States | #846 of 867 cities |
| City Category | city |
| Region | California |
| Latitude | 38.3539 |
| Longitude | -121.9728 |
| Data Year | 2026 |
Where is Vacaville Located?
Vacaville is located in United States, in the California region, at coordinates 38.3539° latitude and -121.9728° longitude. Vacaville 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 Vacaville?
The population of Vacaville is approximately 102,386 residents according to the latest available data (2026).
Where is Vacaville located?
Vacaville is located in United States at approximately 38.3539° latitude and -121.9728° longitude.
Is Vacaville one of the largest cities in United States?
With a population of 102,386, Vacaville is one of the notable urban areas in United States. It ranks #846 out of 867 cities in the country.
