Arlington Heights

village in Cook County, Illinois, United States; suburb of Chicago, Illinois

Key facts

Country: United States
State: Illinois
Counties: Cook
Townships: Wheeling , Elk Grove , Palatine
Type: Council–manager
Total: 16.64 sq mi (43.09 km )
Land: 16.61 sq mi (43.01 km )
Water: 0.031 sq mi (0.08 km )
Elevation: 712 ft (217 m)
Estimate 2024: 75,596
Density: 4,678/sq mi (1,806.1/km )
Time zone: UTC-6 ( CST )
Summer dst

Article

Arlington Heights is a village in Cook County, Illinois, United States. A northwestern suburb of Chicago, it lies about 25 miles (40 km) northwest of the city's downtown. As of the 2020 census, the village's population was 77,676, making it the 15th-most populous municipality in Illinois.

Arlington Heights is known for the former Arlington Park Race Track, home of the Arlington Million, a Breeders' Cup qualifying event; it also hosted the Breeders' Cup World Thoroughbred Championships in 2002.