QuickFacts

Population per square mile in Harris County, Texas is

2,402.4

Median household income of Maricopa County, Arizona is

$53,689

Median household income of Texas is

$52,576

The population of Pennsylvania is

12,802,503

The population of Illinois is

12,859,995

The population of Los Angeles County, California is

10,116,705

The population of Maricopa County, Arizona is

4,087,191

12.9%

of persons in North Carolina are 65 years and over

The population of Los Angeles city, California is

3,928,864

11.4%

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

Source: 2010 Census

Source: American Community Survey

Source: Population Estimates

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census