Monroe County, Illinois demographics
Population: 34,732
Median age: 42.3
Median household income: 92,950
Demographics, population, home values, social and economic characteristics of Monroe County, Illinois.
Population
| 2021 | 34,732 |
| 2020 | 34,444 |
| 2019 | 34,168 |
| 2018 | 33,936 |
| 2017 | 33,739 |
| 2016 | 33,703 |
| 2015 | 33,539 |
| 2014 | 33,373 |
| 2013 | 33,181 |
| 2012 | 33,003 |
| 2011 | 32,767 |
| 2010 | 32,431 |
| 2009 | 32,358 |
Monroe County, IL cities
Columbia city - 11,090
Fults village - 22
Hecker village - 554
Maeystown village - 107
Valmeyer village - 1,248
Waterloo city - 10,906
Census data for Monroe County, Illinois
Demographic and housing estimates in Monroe County, Illinois
| Total population | 34,732 |
| Male | 17,258 |
| Female | 17,474 |
| Total population | 34,732 |
| Under 5 years | 1,949 |
| 5 to 9 years | 1,913 |
| 10 to 14 years | 2,516 |
| 15 to 19 years | 2,106 |
| 20 to 24 years | 1,631 |
| 25 to 34 years | 3,733 |
| 35 to 44 years | 4,624 |
| 45 to 54 years | 4,593 |
| 55 to 59 years | 2,832 |
| 60 to 64 years | 2,675 |
| 65 to 74 years | 3,574 |
| 75 to 84 years | 1,689 |
| 85 years and over | 897 |
| Median age (years) | 42.3 |
| Under 18 years | 7,771 |
| 16 years and over | 27,832 |
| 18 years and over | 26,961 |
| 21 years and over | 26,049 |
| 62 years and over | 7,640 |
| 65 years and over | 6,160 |
| Total population | 34,732 |
| One race | 34,344 |
| White | 33,668 |
| Black or African American | 78 |
| American Indian and Alaska Native | 51 |
| Asian | 318 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 229 |
| Two or more races | 388 |
| Citizen, VOTING AGE 18 and over population | 26,857 |
| Male Citizen, VOTING AGE 18 and over population | 13,270 |
| Female Citizen, VOTING AGE 18 and over population | 13,587 |
Social characteristics in Monroe County, Illinois
| Total households | 13,479 |
| Family households (families) | 8,288 |
| Married-couple family | 627 |
| Male householder, no wife present, family | 1,848 |
| Female householder, no husband present, family | 1,255 |
| Nonfamily households | 2,716 |
| Average household size | 4,325 |
| Average family size | 2.56 |
Economic characteristics in Monroe County, Illinois
| Total households | 13,479 |
| Less than $10,000 | 321 |
| $10,000 to $14,999 | 257 |
| $15,000 to $24,999 | 912 |
| $25,000 to $34,999 | 540 |
| $35,000 to $49,999 | 1,230 |
| $50,000 to $74,999 | 2,043 |
| $75,000 to $99,999 | 2,104 |
| $100,000 to $149,999 | 2,921 |
| $150,000 to $199,999 | 1,751 |
| $200,000 or more | 1,400 |
| Median household income (dollars) | 92,950 |
Housing characteristics in Monroe County, Illinois
| Total housing units | 14,438 |
| Occupied housing units | 13,479 |
| Vacant housing units | 959 |
| Total housing units | 14,438 |
| 1-unit, detached | 12,003 |
| 1-unit, attached | 532 |
| 2 units | 389 |
| 3 or 4 units | 229 |
| 5 to 9 units | 536 |
| 10 to 19 units | 240 |
| 20 or more units | 254 |
| Mobile home | 255 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 14,438 |
| Built 2014 or later | 29 |
| Built 2010 to 2013 | 1,527 |
| Built 2000 to 2009 | 2,825 |
| Built 1990 to 1999 | 2,721 |
| Built 1980 to 1989 | 1,459 |
| Built 1970 to 1979 | 1,339 |
| Built 1960 to 1969 | 1,479 |
| Built 1950 to 1959 | 1,048 |
| Built 1940 to 1949 | 563 |
| Built 1939 or earlier | 1,448 |
| Total housing units | 14,438 |
| 1 room | 141 |
| 2 rooms | 263 |
| 3 rooms | 391 |
| 4 rooms | 1,877 |
| 5 rooms | 2,428 |
| 6 rooms | 3,017 |
| 7 rooms | 2,070 |
| 8 rooms | 1,810 |
| 9 rooms or more | 2,441 |
| Median rooms | 6.2 |
| Total housing units | 14,438 |
| No bedroom | 141 |
| 1 bedroom | 652 |
| 2 bedrooms | 3,192 |
| 3 bedrooms | 7,082 |
| 4 bedrooms | 2,683 |
| 5 or more bedrooms | 688 |
| Occupied housing units | 13,479 |
| Owner-occupied | 11,304 |
| Renter-occupied | 2,175 |
| Average household size of owner-occupied unit | 2.70 |
| Average household size of renter-occupied unit | 1.85 |
| Occupied housing units | 13,479 |
| Moved in 2017 or later | 860 |
| Moved in 2015 to 2016 | 3,495 |
| Moved in 2010 to 2014 | 2,074 |
| Moved in 2000 to 2009 | 3,050 |
| Moved in 1990 to 1999 | 2,058 |
| Moved in 1989 and earlier | 1,942 |
| Owner-occupied units | 11,304 |
| Less than $50,000 | 211 |
| $50,000 to $99,999 | 359 |
| $100,000 to $149,999 | 1,791 |
| $150,000 to $199,999 | 2,257 |
| $200,000 to $299,999 | 3,420 |
| $300,000 to $499,999 | 2,768 |
| $500,000 to $999,999 | 445 |
| $1,000,000 or more | 53 |
| Median (dollars) | 226,300 |
| Owner-occupied units | 11,304 |
| Housing units with a mortgage | 6,698 |
| Housing units without a mortgage | 4,606 |
| Occupied units paying rent | 2,106 |
| Less than $500 | 138 |
| $500 to $999 | 1,224 |
| $1,000 to $1,499 | 652 |
| $1,500 to $1,999 | 68 |
| $2,000 to $2,499 | 3 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 21 |
| Median (dollars) | 902 |
| No rent paid | 69 |
Demographic data for Monroe County, IL and each city in the county. Lists of cities by population, wealth and poverty in Monroe County, IL.
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