QuickFacts

Population per square mile in Cook County, Illinois is

5,495.1

Population per square mile in Ohio is

282.3

23.7%

of persons in Cook County, Illinois are under 18 years

22.0%

of persons in Pennsylvania are under 18 years

11.4%

of persons in California are 65 years and over

10.3%

of persons in Texas are 65 years and over

Population per square mile in Michigan is

174.8

Population per square mile in Pennsylvania is

283.9

Median household income of California is

$61,818

Median household income of Philadelphia city, Pennsylvania is

$38,253

Source: 2010 Census

Source: American Community Survey