Monmouth city, Illinois demographics
Population: 8,810
Median age: 35.6
Median household income: 54,400
Monmouth is a city in Warren County, Illinois, United States.
Demographics, population, home values, social and economic characteristics of Monmouth city, IL.
Population
| 2021 | 8,810 |
| 2020 | 8,837 |
| 2019 | 8,763 |
| 2018 | 9,189 |
| 2017 | 9,011 |
| 2016 | 9,272 |
| 2015 | 9,302 |
| 2014 | 9,565 |
| 2013 | 9,514 |
| 2012 | 9,659 |
| 2011 | 9,615 |
| 2010 | 9,391 |
| 2009 | 9,107 |
Census data for Monmouth city, Illinois
Demographic and housing estimates in Monmouth city, Illinois
| Total population | 8,810 |
| Male | 4,227 |
| Female | 4,583 |
| Total population | 8,810 |
| Under 5 years | 433 |
| 5 to 9 years | 574 |
| 10 to 14 years | 686 |
| 15 to 19 years | 845 |
| 20 to 24 years | 944 |
| 25 to 34 years | 868 |
| 35 to 44 years | 883 |
| 45 to 54 years | 1,028 |
| 55 to 59 years | 550 |
| 60 to 64 years | 558 |
| 65 to 74 years | 811 |
| 75 to 84 years | 422 |
| 85 years and over | 208 |
| Median age (years) | 35.6 |
| Under 18 years | 2,118 |
| 16 years and over | 6,987 |
| 18 years and over | 6,692 |
| 21 years and over | 5,973 |
| 62 years and over | 1,760 |
| 65 years and over | 1,441 |
| Total population | 8,810 |
| One race | 8,644 |
| White | 6,913 |
| Black or African American | 580 |
| American Indian and Alaska Native | 205 |
| Asian | 221 |
| Native Hawaiian and Other Pacific Islander | 49 |
| Some other race | 676 |
| Two or more races | 166 |
| Citizen, VOTING AGE 18 and over population | 6,266 |
| Male Citizen, VOTING AGE 18 and over population | 2,845 |
| Female Citizen, VOTING AGE 18 and over population | 3,421 |
Social characteristics in Monmouth city, Illinois
| Total households | 3,345 |
| Family households (families) | 1,299 |
| Married-couple family | 397 |
| Male householder, no wife present, family | 543 |
| Female householder, no husband present, family | 394 |
| Nonfamily households | 1,106 |
| Average household size | 1,062 |
| Average family size | 2.33 |
Economic characteristics in Monmouth city, Illinois
| Total households | 3,345 |
| Less than $10,000 | 261 |
| $10,000 to $14,999 | 129 |
| $15,000 to $24,999 | 302 |
| $25,000 to $34,999 | 386 |
| $35,000 to $49,999 | 383 |
| $50,000 to $74,999 | 869 |
| $75,000 to $99,999 | 473 |
| $100,000 to $149,999 | 380 |
| $150,000 to $199,999 | 50 |
| $200,000 or more | 112 |
| Median household income (dollars) | 54,400 |
Housing characteristics in Monmouth city, Illinois
| Total housing units | 3,749 |
| Occupied housing units | 3,345 |
| Vacant housing units | 404 |
| Total housing units | 3,749 |
| 1-unit, detached | 2,900 |
| 1-unit, attached | 89 |
| 2 units | 77 |
| 3 or 4 units | 185 |
| 5 to 9 units | 184 |
| 10 to 19 units | 29 |
| 20 or more units | 242 |
| Mobile home | 43 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 3,749 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 13 |
| Built 2000 to 2009 | 175 |
| Built 1990 to 1999 | 46 |
| Built 1980 to 1989 | 200 |
| Built 1970 to 1979 | 423 |
| Built 1960 to 1969 | 334 |
| Built 1950 to 1959 | 636 |
| Built 1940 to 1949 | 417 |
| Built 1939 or earlier | 1,505 |
| Total housing units | 3,749 |
| 1 room | 232 |
| 2 rooms | 118 |
| 3 rooms | 165 |
| 4 rooms | 688 |
| 5 rooms | 735 |
| 6 rooms | 718 |
| 7 rooms | 348 |
| 8 rooms | 309 |
| 9 rooms or more | 436 |
| Median rooms | 5.4 |
| Total housing units | 3,749 |
| No bedroom | 253 |
| 1 bedroom | 349 |
| 2 bedrooms | 1,279 |
| 3 bedrooms | 1,331 |
| 4 bedrooms | 405 |
| 5 or more bedrooms | 132 |
| Occupied housing units | 3,345 |
| Owner-occupied | 2,376 |
| Renter-occupied | 969 |
| Average household size of owner-occupied unit | 2.46 |
| Average household size of renter-occupied unit | 2.02 |
| Occupied housing units | 3,345 |
| Moved in 2017 or later | 393 |
| Moved in 2015 to 2016 | 887 |
| Moved in 2010 to 2014 | 491 |
| Moved in 2000 to 2009 | 755 |
| Moved in 1990 to 1999 | 440 |
| Moved in 1989 and earlier | 379 |
| Owner-occupied units | 2,376 |
| Less than $50,000 | 355 |
| $50,000 to $99,999 | 1,416 |
| $100,000 to $149,999 | 351 |
| $150,000 to $199,999 | 139 |
| $200,000 to $299,999 | 96 |
| $300,000 to $499,999 | 19 |
| $500,000 to $999,999 | 0 |
| $1,000,000 or more | 0 |
| Median (dollars) | 77,800 |
| Owner-occupied units | 2,376 |
| Housing units with a mortgage | 1,377 |
| Housing units without a mortgage | 999 |
| Occupied units paying rent | 914 |
| Less than $500 | 307 |
| $500 to $999 | 558 |
| $1,000 to $1,499 | 25 |
| $1,500 to $1,999 | 24 |
| $2,000 to $2,499 | 0 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 0 |
| Median (dollars) | 596 |
| No rent paid | 55 |
Links