Marion County, Illinois demographics
Population: 37,781
Median age: 42.1
Median household income: 53,209
Demographics, population, home values, social and economic characteristics of Marion County, Illinois.
Population
| 2021 | 37,781 |
| 2020 | 37,524 |
| 2019 | 37,743 |
| 2018 | 38,084 |
| 2017 | 38,305 |
| 2016 | 38,503 |
| 2015 | 38,665 |
| 2014 | 38,922 |
| 2013 | 39,070 |
| 2012 | 39,319 |
| 2011 | 39,586 |
| 2010 | 39,722 |
| 2009 | 39,488 |
Marion County, IL cities
Alma village - 304
Central City village - 1,125
Centralia city - 12,061
Farina village - 722
Iuka village - 483
Junction City village - 653
Kell village - 138
Kinmundy city - 749
Odin village - 935
Patoka village - 696
Salem city - 7,269
Sandoval village - 1,087
Vernon village - 76
Walnut Hill village - 150
Wamac city - 1,090
Census data for Marion County, Illinois
Demographic and housing estimates in Marion County, Illinois
| Total population | 37,781 |
| Male | 18,530 |
| Female | 19,251 |
| Total population | 37,781 |
| Under 5 years | 2,397 |
| 5 to 9 years | 2,600 |
| 10 to 14 years | 2,413 |
| 15 to 19 years | 2,286 |
| 20 to 24 years | 1,890 |
| 25 to 34 years | 4,512 |
| 35 to 44 years | 4,424 |
| 45 to 54 years | 4,552 |
| 55 to 59 years | 2,717 |
| 60 to 64 years | 2,670 |
| 65 to 74 years | 4,252 |
| 75 to 84 years | 2,124 |
| 85 years and over | 944 |
| Median age (years) | 42.1 |
| Under 18 years | 8,892 |
| 16 years and over | 29,855 |
| 18 years and over | 28,889 |
| 21 years and over | 27,715 |
| 62 years and over | 8,921 |
| 65 years and over | 7,320 |
| Total population | 37,781 |
| One race | 36,633 |
| White | 34,751 |
| Black or African American | 1,436 |
| American Indian and Alaska Native | 9 |
| Asian | 231 |
| Native Hawaiian and Other Pacific Islander | 3 |
| Some other race | 203 |
| Two or more races | 1,148 |
| Citizen, VOTING AGE 18 and over population | 28,729 |
| Male Citizen, VOTING AGE 18 and over population | 13,980 |
| Female Citizen, VOTING AGE 18 and over population | 14,749 |
Social characteristics in Marion County, Illinois
| Total households | 15,294 |
| Family households (families) | 6,786 |
| Married-couple family | 1,261 |
| Male householder, no wife present, family | 3,017 |
| Female householder, no husband present, family | 2,407 |
| Nonfamily households | 4,230 |
| Average household size | 5,269 |
| Average family size | 2.42 |
Economic characteristics in Marion County, Illinois
| Total households | 15,294 |
| Less than $10,000 | 1,054 |
| $10,000 to $14,999 | 784 |
| $15,000 to $24,999 | 1,768 |
| $25,000 to $34,999 | 1,456 |
| $35,000 to $49,999 | 2,176 |
| $50,000 to $74,999 | 2,967 |
| $75,000 to $99,999 | 2,056 |
| $100,000 to $149,999 | 2,042 |
| $150,000 to $199,999 | 501 |
| $200,000 or more | 490 |
| Median household income (dollars) | 53,209 |
Housing characteristics in Marion County, Illinois
| Total housing units | 17,470 |
| Occupied housing units | 15,294 |
| Vacant housing units | 2,176 |
| Total housing units | 17,470 |
| 1-unit, detached | 12,284 |
| 1-unit, attached | 55 |
| 2 units | 529 |
| 3 or 4 units | 521 |
| 5 to 9 units | 381 |
| 10 to 19 units | 110 |
| 20 or more units | 294 |
| Mobile home | 3,278 |
| Boat, RV, van, etc. | 18 |
| Total housing units | 17,470 |
| Built 2014 or later | 3 |
| Built 2010 to 2013 | 741 |
| Built 2000 to 2009 | 1,962 |
| Built 1990 to 1999 | 2,065 |
| Built 1980 to 1989 | 1,747 |
| Built 1970 to 1979 | 2,849 |
| Built 1960 to 1969 | 1,791 |
| Built 1950 to 1959 | 1,959 |
| Built 1940 to 1949 | 1,460 |
| Built 1939 or earlier | 2,893 |
| Total housing units | 17,470 |
| 1 room | 115 |
| 2 rooms | 410 |
| 3 rooms | 858 |
| 4 rooms | 3,090 |
| 5 rooms | 4,032 |
| 6 rooms | 3,670 |
| 7 rooms | 2,310 |
| 8 rooms | 1,429 |
| 9 rooms or more | 1,556 |
| Median rooms | 5.6 |
| Total housing units | 17,470 |
| No bedroom | 119 |
| 1 bedroom | 1,531 |
| 2 bedrooms | 5,275 |
| 3 bedrooms | 7,535 |
| 4 bedrooms | 2,340 |
| 5 or more bedrooms | 670 |
| Occupied housing units | 15,294 |
| Owner-occupied | 11,425 |
| Renter-occupied | 3,869 |
| Average household size of owner-occupied unit | 2.41 |
| Average household size of renter-occupied unit | 2.43 |
| Occupied housing units | 15,294 |
| Moved in 2017 or later | 1,298 |
| Moved in 2015 to 2016 | 3,910 |
| Moved in 2010 to 2014 | 2,226 |
| Moved in 2000 to 2009 | 3,354 |
| Moved in 1990 to 1999 | 2,213 |
| Moved in 1989 and earlier | 2,293 |
| Owner-occupied units | 11,425 |
| Less than $50,000 | 2,863 |
| $50,000 to $99,999 | 3,944 |
| $100,000 to $149,999 | 1,828 |
| $150,000 to $199,999 | 1,210 |
| $200,000 to $299,999 | 935 |
| $300,000 to $499,999 | 485 |
| $500,000 to $999,999 | 153 |
| $1,000,000 or more | 7 |
| Median (dollars) | 83,700 |
| Owner-occupied units | 11,425 |
| Housing units with a mortgage | 5,744 |
| Housing units without a mortgage | 5,681 |
| Occupied units paying rent | 3,410 |
| Less than $500 | 737 |
| $500 to $999 | 2,047 |
| $1,000 to $1,499 | 491 |
| $1,500 to $1,999 | 82 |
| $2,000 to $2,499 | 8 |
| $2,500 to $2,999 | 1 |
| $3,000 or more | 44 |
| Median (dollars) | 684 |
| No rent paid | 459 |
Demographic data for Marion County, IL and each city in the county. Lists of cities by population, wealth and poverty in Marion County, IL.
Links