About Peoria County
Peoria County is a city located in United States, in the Illinois region. According to the latest available data (2026), the population of Peoria County is approximately 181,830 residents, making it the #443 most populous city in United States.
Globally, Peoria County ranks #9,571 among the world's most populated cities.
Peoria County City Statistics
| City | Peoria County |
| Country |  United States |
| Population | 181,830 |
| Global Rank | #9,571 |
| Rank in United States | #443 of 867 cities |
| City Category | city |
| Region | Illinois |
| Latitude | 40.79 |
| Longitude | -89.76 |
| Data Year | 2026 |
Where is Peoria County Located?
Peoria County is located in United States, in the Illinois region, at coordinates 40.79° latitude and -89.76° longitude. Located in the mid-latitudes, Peoria County experiences distinct four-season weather patterns.
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 Peoria County?
The population of Peoria County is approximately 181,830 residents according to the latest available data (2026).
Where is Peoria County located?
Peoria County is located in United States at approximately 40.79° latitude and -89.76° longitude.
Is Peoria County one of the largest cities in United States?
With a population of 181,830, Peoria County is one of the notable urban areas in United States. It ranks #443 out of 867 cities in the country.
