Population of Mchenry County, Illinois:
Census 2010 and 2000 Interactive Map, Demographics, Statistics, Graphs, Quick Facts

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Mchenry County, Illinois - Overview 2010 Census 2000 Census 2000-2010 Change
Counts Percentages Counts Percentages Change Percentages
Total Population
Total Population 308,760 100.00% 259,854 100.00% 48,906 18.82%
 
Population by Race
American Indian and Alaska native alone 939 0.30% 446 0.17% 493 110.54%
Asian alone 7,807 2.53% 3,782 1.46% 4,025 106.43%
Black or African American alone 3,283 1.06% 1,521 0.59% 1,762 115.84%
Native Hawaiian and Other Pacific native alone 80 0.03% 54 0.02% 26 48.15%
Some other race alone 13,194 4.27% 7,211 2.78% 5,983 82.97%
Two or more races 5,200 1.68% 2,819 1.08% 2,381 84.46%
White alone 278,257 90.12% 244,021 93.91% 34,236 14.03%
 
Population by Hispanic or Latino Origin (of any race)
Persons Not of Hispanic or Latino Origin 273,511 88.58% 240,264 92.46% 33,247 13.84%
Persons of Hispanic or Latino Origin 35,249 11.42% 19,590 7.54% 15,659 79.93%
 
Population by Gender
Female 154,824 50.14% 129,494 49.83% 25,330 19.56%
Male 153,936 49.86% 130,360 50.17% 23,576 18.09%
 
Population by Age
Persons 0 to 4 years 19,896 6.44% 21,089 8.12% -1,193 -5.66%
Persons 5 to 17 years 64,279 20.82% 57,353 22.07% 6,926 12.08%
Persons 18 to 64 years 193,265 62.59% 160,518 61.77% 32,747 20.40%
Persons 65 years and over 31,320 10.14% 20,894 8.04% 10,426 49.90%
 

Mchenry County, Illinois Registered Voters - Overview Statistics and Quick Facts

CensusViewer - Graphs & Tables: Race by Age

CensusViewer - Graphs & Tables: Hispanic/Latino Origin

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