About Maricopa County
Maricopa County is a large city located in United States, in the Arizona region. According to the latest available data (2026), the population of Maricopa County is approximately 4,420,568 residents, making it the #5 most populous city in United States.
Globally, Maricopa County ranks #247 among the world's most populated cities. With over 1 million residents, Maricopa County plays an important role as an economic and cultural center in United States.
Maricopa County City Statistics
| City | Maricopa County |
| Country |  United States |
| Population | 4,420,568 |
| Global Rank | #247 |
| Rank in United States | #5 of 867 cities |
| City Category | large city |
| Region | Arizona |
| Latitude | 33.5139 |
| Longitude | -112.4758 |
| Data Year | 2026 |
Population Comparison
To put Maricopa County's population of 4,420,568 into perspective:
- Maricopa County has approximately 4.4 million residents.
- This makes it comparable in size to cities like Berlin or Madrid.
- It ranks #5 among all cities in United States.
Where is Maricopa County Located?
Maricopa County is located in United States, in the Arizona region, at coordinates 33.5139° latitude and -112.4758° longitude. Maricopa 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 | Morris County | 509,285 |
| 2 | Staten Island | 495,747 |
| 3 | Ada County | 494,967 |
| 4 | Omaha | 486,051 |
| 5 | Colorado Springs | 478,961 |
Frequently Asked Questions
What is the population of Maricopa County?
The population of Maricopa County is approximately 4,420,568 residents according to the latest available data (2026).
Where is Maricopa County located?
Maricopa County is located in United States at approximately 33.5139° latitude and -112.4758° longitude.
Is Maricopa County one of the largest cities in United States?
With a population of 4,420,568, Maricopa County is one of the major urban areas in United States. It ranks #5 out of 867 cities in the country.
