QuickFacts

26.4%

of persons in Maricopa County, Arizona are under 18 years

The population of Ohio is

11,614,373

12.1%

of persons in Philadelphia city, Pennsylvania are 65 years and over

The population of Florida is

20,612,439

The population of California is

39,250,017

23.9%

of persons in North Carolina are under 18 years

21.6%

of persons in New York city, New York are under 18 years

11.4%

of persons in San Diego County, California are 65 years and over

Median household income of Los Angeles County, California is

$56,196

Median household income of Cook County, Illinois is

$55,251

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey