QuickFacts

The population of Michigan is

9,928,300

The population of Philadelphia city, Pennsylvania is

1,567,442

Population per square mile in Pennsylvania is

283.9

Population per square mile in Los Angeles city, California is

8,092.3

The population of Illinois is

12,801,539

11.9%

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

The population of San Diego County, California is

3,299,521

25.0%

of persons in California are under 18 years

Population per square mile in New York city, New York is

27,012.5

The population of Los Angeles County, California is

10,170,292

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates