About Monmouth County
Monmouth County is a mid-sized city located in United States, in the New Jersey region. According to the latest available data (2026), the population of Monmouth County is approximately 643,615 residents, making it the #109 most populous city in United States.
Globally, Monmouth County ranks #2,897 among the world's most populated cities.
Monmouth County City Statistics
| City | Monmouth County |
| Country |  United States |
| Population | 643,615 |
| Global Rank | #2,897 |
| Rank in United States | #109 of 867 cities |
| City Category | mid-sized city |
| Region | New Jersey |
| Latitude | 40.29 |
| Longitude | -74.15 |
| Data Year | 2026 |
Population Comparison
To put Monmouth County's population of 643,615 into perspective:
- Monmouth County has over 643,000 residents.
Where is Monmouth County Located?
Monmouth County is located in United States, in the New Jersey region, at coordinates 40.29° latitude and -74.15° longitude. Located in the mid-latitudes, Monmouth 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 Monmouth County?
The population of Monmouth County is approximately 643,615 residents according to the latest available data (2026).
Where is Monmouth County located?
Monmouth County is located in United States at approximately 40.29° latitude and -74.15° longitude.
Is Monmouth County one of the largest cities in United States?
With a population of 643,615, Monmouth County is one of the notable urban areas in United States. It ranks #109 out of 867 cities in the country.
