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10.3%
of persons in Chicago city, Illinois are 65 years and over
24.5%
of persons in Los Angeles County, California are under 18 years
22.5%
of persons in Philadelphia city, Pennsylvania are under 18 years
The population of New York is
19,745,289
Population per square mile in Illinois is
231.1
Population per square mile in Harris County, Texas is
2,402.4
17.3%
of persons in Florida are 65 years and over
The population of Los Angeles city, California is
3,971,883
23.7%
of persons in Cook County, Illinois are under 18 years
26.4%
of persons in Maricopa County, Arizona are under 18 years
Source: 2010 Census
Source: 2010 Census
Source: 2010 Census
Source: Population Estimates
Source: 2010 Census
Source: 2010 Census
Source: 2010 Census
Source: Population Estimates
Source: 2010 Census
Source: 2010 Census