McHenry County, Illinois demographics
Median household income: 93,801
Demographics, population, home values, social and economic characteristics of McHenry County, Illinois.
Population
| 2021 | 310,749 |
| 2020 | 307,291 |
| 2019 | 307,714 |
| 2018 | 307,789 |
| 2017 | 308,043 |
| 2016 | 307,083 |
| 2015 | 307,357 |
| 2014 | 307,888 |
| 2013 | 308,060 |
| 2012 | 308,163 |
| 2011 | 307,721 |
| 2010 | 306,050 |
| 2009 | 312,946 |
McHenry County, IL cities
Algonquin village - 29,869
Barrington Hills village - 4,236
Bull Valley village - 1,250
Cary village - 17,919
Chemung CDP - 791
Crystal Lake city - 40,082
Fox Lake village - 10,945
Fox River Grove village - 4,710
Greenwood village - 427
Harvard city - 9,482
Hebron village - 1,540
Holiday Hills village - 650
Huntley village - 27,314
Island Lake village - 8,057
Johnsburg village - 6,399
Lake in the Hills village - 29,024
Lakemoor village - 5,816
Lakewood village - 4,489
Marengo city - 7,466
McCullom Lake village - 1,054
McHenry city - 27,237
Oakwood Hills village - 2,714
Pistakee Highlands CDP - 3,372
Port Barrington village - 1,686
Prairie Grove village - 1,928
Richmond village - 2,263
Ringwood village - 713
Spring Grove village - 5,713
Trout Valley village - 542
Union village - 630
Wonder Lake village - 4,032
Woodstock city - 25,829
Census data for McHenry County, Illinois
Demographic and housing estimates in McHenry County, Illinois
| Total population | 310,749 |
| Male | 155,410 |
| Female | 155,339 |
| Total population | 310,749 |
| Under 5 years | 16,737 |
| 5 to 9 years | 19,647 |
| 10 to 14 years | 22,147 |
| 15 to 19 years | 22,003 |
| 20 to 24 years | 18,035 |
| 25 to 34 years | 35,097 |
| 35 to 44 years | 39,793 |
| 45 to 54 years | 45,542 |
| 55 to 59 years | 25,139 |
| 60 to 64 years | 20,572 |
| 65 to 74 years | 28,732 |
| 75 to 84 years | 12,141 |
| 85 years and over | 5,164 |
| Median age (years) | 40.4 |
| Under 18 years | 72,908 |
| 16 years and over | 247,186 |
| 18 years and over | 237,841 |
| 21 years and over | 227,147 |
| 62 years and over | 58,086 |
| 65 years and over | 46,037 |
| Total population | 310,749 |
| One race | 294,636 |
| White | 275,551 |
| Black or African American | 4,737 |
| American Indian and Alaska Native | 476 |
| Asian | 8,440 |
| Native Hawaiian and Other Pacific Islander | 5 |
| Some other race | 5,427 |
| Two or more races | 16,113 |
| Citizen, VOTING AGE 18 and over population | 225,434 |
| Male Citizen, VOTING AGE 18 and over population | 111,900 |
| Female Citizen, VOTING AGE 18 and over population | 113,534 |
Social characteristics in McHenry County, Illinois
| Total households | 114,446 |
| Family households (families) | 68,830 |
| Married-couple family | 7,380 |
| Male householder, no wife present, family | 15,398 |
| Female householder, no husband present, family | 10,700 |
| Nonfamily households | 22,838 |
| Average household size | 33,081 |
| Average family size | 2.70 |
Economic characteristics in McHenry County, Illinois
| Total households | 114,446 |
| Less than $10,000 | 3,407 |
| $10,000 to $14,999 | 2,108 |
| $15,000 to $24,999 | 4,997 |
| $25,000 to $34,999 | 6,117 |
| $35,000 to $49,999 | 10,462 |
| $50,000 to $74,999 | 17,745 |
| $75,000 to $99,999 | 16,053 |
| $100,000 to $149,999 | 25,291 |
| $150,000 to $199,999 | 14,011 |
| $200,000 or more | 14,255 |
| Median household income (dollars) | 93,801 |
Housing characteristics in McHenry County, Illinois
| Total housing units | 119,465 |
| Occupied housing units | 114,446 |
| Vacant housing units | 5,019 |
| Total housing units | 119,465 |
| 1-unit, detached | 92,343 |
| 1-unit, attached | 12,222 |
| 2 units | 1,865 |
| 3 or 4 units | 2,921 |
| 5 to 9 units | 4,652 |
| 10 to 19 units | 1,993 |
| 20 or more units | 2,606 |
| Mobile home | 817 |
| Boat, RV, van, etc. | 46 |
| Total housing units | 119,465 |
| Built 2014 or later | 78 |
| Built 2010 to 2013 | 4,062 |
| Built 2000 to 2009 | 25,576 |
| Built 1990 to 1999 | 28,243 |
| Built 1980 to 1989 | 14,918 |
| Built 1970 to 1979 | 15,981 |
| Built 1960 to 1969 | 8,476 |
| Built 1950 to 1959 | 9,891 |
| Built 1940 to 1949 | 2,862 |
| Built 1939 or earlier | 9,378 |
| Total housing units | 119,465 |
| 1 room | 880 |
| 2 rooms | 1,503 |
| 3 rooms | 4,271 |
| 4 rooms | 11,494 |
| 5 rooms | 20,265 |
| 6 rooms | 19,246 |
| 7 rooms | 17,942 |
| 8 rooms | 16,522 |
| 9 rooms or more | 27,342 |
| Median rooms | 6.6 |
| Total housing units | 119,465 |
| No bedroom | 937 |
| 1 bedroom | 5,649 |
| 2 bedrooms | 26,080 |
| 3 bedrooms | 47,947 |
| 4 bedrooms | 32,124 |
| 5 or more bedrooms | 6,728 |
| Occupied housing units | 114,446 |
| Owner-occupied | 93,244 |
| Renter-occupied | 21,202 |
| Average household size of owner-occupied unit | 2.75 |
| Average household size of renter-occupied unit | 2.46 |
| Occupied housing units | 114,446 |
| Moved in 2017 or later | 8,379 |
| Moved in 2015 to 2016 | 30,012 |
| Moved in 2010 to 2014 | 16,906 |
| Moved in 2000 to 2009 | 30,889 |
| Moved in 1990 to 1999 | 17,768 |
| Moved in 1989 and earlier | 10,492 |
| Owner-occupied units | 93,244 |
| Less than $50,000 | 1,926 |
| $50,000 to $99,999 | 3,249 |
| $100,000 to $149,999 | 9,312 |
| $150,000 to $199,999 | 18,122 |
| $200,000 to $299,999 | 33,097 |
| $300,000 to $499,999 | 23,636 |
| $500,000 to $999,999 | 3,407 |
| $1,000,000 or more | 495 |
| Median (dollars) | 241,500 |
| Owner-occupied units | 93,244 |
| Housing units with a mortgage | 66,388 |
| Housing units without a mortgage | 26,856 |
| Occupied units paying rent | 20,310 |
| Less than $500 | 1,055 |
| $500 to $999 | 4,583 |
| $1,000 to $1,499 | 7,693 |
| $1,500 to $1,999 | 5,158 |
| $2,000 to $2,499 | 1,268 |
| $2,500 to $2,999 | 166 |
| $3,000 or more | 387 |
| Median (dollars) | 1,253 |
| No rent paid | 892 |
Demographic data for McHenry County, IL and each city in the county. Lists of cities by population, wealth and poverty in McHenry County, IL.