Warren County, Illinois demographics
Population: 16,887
Median age: 39.6
Median household income: 59,673
Demographics, population, home values, social and economic characteristics of Warren County, Illinois.
Population
| 2021 | 16,887 |
| 2020 | 16,981 |
| 2019 | 17,146 |
| 2018 | 17,338 |
| 2017 | 17,429 |
| 2016 | 17,611 |
| 2015 | 17,701 |
| 2014 | 17,784 |
| 2013 | 17,762 |
| 2012 | 17,723 |
| 2011 | 17,740 |
| 2010 | 17,745 |
| 2009 | 17,551 |
Warren County, IL cities
Alexis village - 735
Avon village - 647
Kirkwood village - 673
Little York village - 374
Monmouth city - 8,810
Roseville village - 791
Census data for Warren County, Illinois
Demographic and housing estimates in Warren County, Illinois
| Total population | 16,887 |
| Male | 8,329 |
| Female | 8,558 |
| Total population | 16,887 |
| Under 5 years | 890 |
| 5 to 9 years | 1,016 |
| 10 to 14 years | 1,097 |
| 15 to 19 years | 1,465 |
| 20 to 24 years | 1,406 |
| 25 to 34 years | 1,653 |
| 35 to 44 years | 1,806 |
| 45 to 54 years | 2,011 |
| 55 to 59 years | 1,164 |
| 60 to 64 years | 1,190 |
| 65 to 74 years | 1,801 |
| 75 to 84 years | 979 |
| 85 years and over | 409 |
| Median age (years) | 39.6 |
| Under 18 years | 3,680 |
| 16 years and over | 13,628 |
| 18 years and over | 13,207 |
| 21 years and over | 12,082 |
| 62 years and over | 3,873 |
| 65 years and over | 3,189 |
| Total population | 16,887 |
| One race | 16,613 |
| White | 14,705 |
| Black or African American | 653 |
| American Indian and Alaska Native | 205 |
| Asian | 252 |
| Native Hawaiian and Other Pacific Islander | 49 |
| Some other race | 749 |
| Two or more races | 274 |
| Citizen, VOTING AGE 18 and over population | 12,775 |
| Male Citizen, VOTING AGE 18 and over population | 6,201 |
| Female Citizen, VOTING AGE 18 and over population | 6,574 |
Social characteristics in Warren County, Illinois
| Total households | 6,818 |
| Family households (families) | 3,259 |
| Married-couple family | 614 |
| Male householder, no wife present, family | 1,192 |
| Female householder, no husband present, family | 894 |
| Nonfamily households | 1,753 |
| Average household size | 2,244 |
| Average family size | 2.32 |
Economic characteristics in Warren County, Illinois
| Total households | 6,818 |
| Less than $10,000 | 371 |
| $10,000 to $14,999 | 289 |
| $15,000 to $24,999 | 517 |
| $25,000 to $34,999 | 663 |
| $35,000 to $49,999 | 914 |
| $50,000 to $74,999 | 1,507 |
| $75,000 to $99,999 | 1,021 |
| $100,000 to $149,999 | 1,021 |
| $150,000 to $199,999 | 263 |
| $200,000 or more | 252 |
| Median household income (dollars) | 59,673 |
Housing characteristics in Warren County, Illinois
| Total housing units | 7,613 |
| Occupied housing units | 6,818 |
| Vacant housing units | 795 |
| Total housing units | 7,613 |
| 1-unit, detached | 6,502 |
| 1-unit, attached | 102 |
| 2 units | 121 |
| 3 or 4 units | 265 |
| 5 to 9 units | 198 |
| 10 to 19 units | 56 |
| 20 or more units | 244 |
| Mobile home | 125 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 7,613 |
| Built 2014 or later | 3 |
| Built 2010 to 2013 | 133 |
| Built 2000 to 2009 | 401 |
| Built 1990 to 1999 | 266 |
| Built 1980 to 1989 | 370 |
| Built 1970 to 1979 | 1,237 |
| Built 1960 to 1969 | 746 |
| Built 1950 to 1959 | 963 |
| Built 1940 to 1949 | 740 |
| Built 1939 or earlier | 2,754 |
| Total housing units | 7,613 |
| 1 room | 258 |
| 2 rooms | 124 |
| 3 rooms | 246 |
| 4 rooms | 1,252 |
| 5 rooms | 1,387 |
| 6 rooms | 1,541 |
| 7 rooms | 1,014 |
| 8 rooms | 781 |
| 9 rooms or more | 1,010 |
| Median rooms | 5.9 |
| Total housing units | 7,613 |
| No bedroom | 279 |
| 1 bedroom | 456 |
| 2 bedrooms | 2,346 |
| 3 bedrooms | 3,114 |
| 4 bedrooms | 1,134 |
| 5 or more bedrooms | 284 |
| Occupied housing units | 6,818 |
| Owner-occupied | 5,242 |
| Renter-occupied | 1,576 |
| Average household size of owner-occupied unit | 2.39 |
| Average household size of renter-occupied unit | 2.07 |
| Occupied housing units | 6,818 |
| Moved in 2017 or later | 594 |
| Moved in 2015 to 2016 | 1,629 |
| Moved in 2010 to 2014 | 1,073 |
| Moved in 2000 to 2009 | 1,496 |
| Moved in 1990 to 1999 | 938 |
| Moved in 1989 and earlier | 1,088 |
| Owner-occupied units | 5,242 |
| Less than $50,000 | 660 |
| $50,000 to $99,999 | 2,508 |
| $100,000 to $149,999 | 799 |
| $150,000 to $199,999 | 475 |
| $200,000 to $299,999 | 533 |
| $300,000 to $499,999 | 198 |
| $500,000 to $999,999 | 55 |
| $1,000,000 or more | 14 |
| Median (dollars) | 87,400 |
| Owner-occupied units | 5,242 |
| Housing units with a mortgage | 2,882 |
| Housing units without a mortgage | 2,360 |
| Occupied units paying rent | 1,387 |
| Less than $500 | 348 |
| $500 to $999 | 923 |
| $1,000 to $1,499 | 85 |
| $1,500 to $1,999 | 26 |
| $2,000 to $2,499 | 5 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 0 |
| Median (dollars) | 650 |
| No rent paid | 189 |
Demographic data for Warren County, IL and each city in the county. Lists of cities by population, wealth and poverty in Warren County, IL.
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