QuickFacts

10.5%

of persons in Los Angeles city, California are 65 years and over

Population per square mile in Pennsylvania is

283.9

23.7%

of persons in Cook County, Illinois are under 18 years

The population of Philadelphia city, Pennsylvania is

1,567,442

Population per square mile in Harris County, Texas is

2,402.4

11.9%

of persons in Cook County, Illinois are 65 years and over

23.7%

of persons in Michigan are under 18 years

24.5%

of persons in Los Angeles County, California are under 18 years

The population of Texas is

27,862,596

Median household income of Illinois is

$57,574

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: American Community Survey