Demographic Characteristics of McHenry County, Illinois
Total Population: 260,077
McHenry County, Illinois Age/Gender Statistics
 Male Population: 130,474 (50.17%) |
 Female Population: 129,603 (49.83%) |
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| Under 5 years | 21,110 | 45 to 54 years: | 35,866 |
| 5 to 9 years: | 23,044 | 55 to 59 years: | 11,680 |
| 10 to 14 years: | 22,205 | 60 to 64 years: | 7,727 |
| 15 to 19 years: | 18,130 | 65 to 74 years: | 11,351 |
| 20 to 24 years: | 12,399 | 75 to 84 years: | 7,115 |
| 25 to 34 years: | 36,748 | 85 years and over: | 2,447 |
| 35 to 44 years: | 50,255 | ||
| Median Age: 34.2 | |||
McHenry County, Illinois Racial Statistics
One Race
257,256
White
244,240
Black or African American
1,523
American Indian and Alaska Native
445
Asian
3,782
Asian Indian
1,136
Chinese
585
Filipino
946
Japanese
194
Korean
447
Vietnamese
114
Other Asian
360
Native Hawaiian and Other Pacific Islander
55
Native Hawaiian
19
Guamanian or Chamorro
5
Samoan
20
Other Pacific Islander
11
Some other race
7,211
Two or more races
2,821
McHenry County, Illinois Hispanic Population Statistics
| Total Hispanic or Latino Population: 19,602 | |||
| Mexican | Puerto Rican | Cuban | Other |
| 15,881 | 1,009 | 283 | 2,429 |
McHenry County, Illinois Relationship Statistics
| In households: 258,558 (99.42%) | In group quarters: 1,519 (0.58%) | ||
| Householder | 89,403 | Institutionalized | 1,106 |
| Spouse | 59,453 | Noninstitutionalized | 413 |
| Child | 90,822 | ||
| Own child under 18 years | 74,569 | ||
| Other relatives | 9,546 | ||
| Under 18 years | 2,857 | ||
| Nonrelatives | 9,334 | ||
| Unmarried partner | 3,780 | ||