Quincy city, Illinois demographics
Population: 39,687
Median age: 40.0
Median household income: 50,857
Quincy is a city in Adams County, Illinois, United States.
Demographics, population, home values, social and economic characteristics of Quincy city, IL.
Population
| 2021 | 39,687 |
| 2020 | 40,111 |
| 2019 | 40,280 |
| 2018 | 40,428 |
| 2017 | 40,587 |
| 2016 | 40,689 |
| 2015 | 40,763 |
| 2014 | 40,782 |
| 2013 | 40,769 |
| 2012 | 40,647 |
| 2011 | 40,544 |
| 2010 | 40,496 |
| 2009 | 39,873 |
Census data for Quincy city, Illinois
Demographic and housing estimates in Quincy city, Illinois
| Total population | 39,687 |
| Male | 19,000 |
| Female | 20,687 |
| Total population | 39,687 |
| Under 5 years | 2,504 |
| 5 to 9 years | 2,527 |
| 10 to 14 years | 2,404 |
| 15 to 19 years | 1,962 |
| 20 to 24 years | 2,469 |
| 25 to 34 years | 5,552 |
| 35 to 44 years | 4,672 |
| 45 to 54 years | 4,317 |
| 55 to 59 years | 2,595 |
| 60 to 64 years | 2,598 |
| 65 to 74 years | 4,289 |
| 75 to 84 years | 2,315 |
| 85 years and over | 1,483 |
| Median age (years) | 40.0 |
| Under 18 years | 8,533 |
| 16 years and over | 32,057 |
| 18 years and over | 31,154 |
| 21 years and over | 29,950 |
| 62 years and over | 9,389 |
| 65 years and over | 8,087 |
| Total population | 39,687 |
| One race | 38,108 |
| White | 35,153 |
| Black or African American | 2,496 |
| American Indian and Alaska Native | 22 |
| Asian | 328 |
| Native Hawaiian and Other Pacific Islander | 4 |
| Some other race | 105 |
| Two or more races | 1,579 |
| Citizen, VOTING AGE 18 and over population | 30,976 |
| Male Citizen, VOTING AGE 18 and over population | 14,860 |
| Female Citizen, VOTING AGE 18 and over population | 16,116 |
Social characteristics in Quincy city, Illinois
| Total households | 17,016 |
| Family households (families) | 6,879 |
| Married-couple family | 1,221 |
| Male householder, no wife present, family | 3,353 |
| Female householder, no husband present, family | 2,584 |
| Nonfamily households | 5,563 |
| Average household size | 5,739 |
| Average family size | 2.27 |
Economic characteristics in Quincy city, Illinois
| Total households | 17,016 |
| Less than $10,000 | 1,082 |
| $10,000 to $14,999 | 619 |
| $15,000 to $24,999 | 2,000 |
| $25,000 to $34,999 | 1,971 |
| $35,000 to $49,999 | 2,702 |
| $50,000 to $74,999 | 3,102 |
| $75,000 to $99,999 | 2,186 |
| $100,000 to $149,999 | 2,112 |
| $150,000 to $199,999 | 654 |
| $200,000 or more | 588 |
| Median household income (dollars) | 50,857 |
Housing characteristics in Quincy city, Illinois
| Total housing units | 18,886 |
| Occupied housing units | 17,016 |
| Vacant housing units | 1,870 |
| Total housing units | 18,886 |
| 1-unit, detached | 12,857 |
| 1-unit, attached | 1,010 |
| 2 units | 937 |
| 3 or 4 units | 1,041 |
| 5 to 9 units | 1,062 |
| 10 to 19 units | 375 |
| 20 or more units | 1,222 |
| Mobile home | 373 |
| Boat, RV, van, etc. | 9 |
| Total housing units | 18,886 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 632 |
| Built 2000 to 2009 | 1,455 |
| Built 1990 to 1999 | 1,228 |
| Built 1980 to 1989 | 1,177 |
| Built 1970 to 1979 | 2,297 |
| Built 1960 to 1969 | 1,918 |
| Built 1950 to 1959 | 3,171 |
| Built 1940 to 1949 | 1,597 |
| Built 1939 or earlier | 5,411 |
| Total housing units | 18,886 |
| 1 room | 462 |
| 2 rooms | 350 |
| 3 rooms | 1,757 |
| 4 rooms | 2,904 |
| 5 rooms | 4,075 |
| 6 rooms | 3,114 |
| 7 rooms | 2,267 |
| 8 rooms | 1,445 |
| 9 rooms or more | 2,512 |
| Median rooms | 5.5 |
| Total housing units | 18,886 |
| No bedroom | 486 |
| 1 bedroom | 2,842 |
| 2 bedrooms | 5,952 |
| 3 bedrooms | 6,045 |
| 4 bedrooms | 2,702 |
| 5 or more bedrooms | 859 |
| Occupied housing units | 17,016 |
| Owner-occupied | 10,818 |
| Renter-occupied | 6,198 |
| Average household size of owner-occupied unit | 2.50 |
| Average household size of renter-occupied unit | 1.86 |
| Occupied housing units | 17,016 |
| Moved in 2017 or later | 1,716 |
| Moved in 2015 to 2016 | 5,038 |
| Moved in 2010 to 2014 | 2,900 |
| Moved in 2000 to 2009 | 3,224 |
| Moved in 1990 to 1999 | 2,081 |
| Moved in 1989 and earlier | 2,057 |
| Owner-occupied units | 10,818 |
| Less than $50,000 | 917 |
| $50,000 to $99,999 | 3,065 |
| $100,000 to $149,999 | 2,817 |
| $150,000 to $199,999 | 1,883 |
| $200,000 to $299,999 | 1,257 |
| $300,000 to $499,999 | 733 |
| $500,000 to $999,999 | 146 |
| $1,000,000 or more | 0 |
| Median (dollars) | 122,900 |
| Owner-occupied units | 10,818 |
| Housing units with a mortgage | 6,147 |
| Housing units without a mortgage | 4,671 |
| Occupied units paying rent | 5,842 |
| Less than $500 | 1,077 |
| $500 to $999 | 3,714 |
| $1,000 to $1,499 | 787 |
| $1,500 to $1,999 | 92 |
| $2,000 to $2,499 | 32 |
| $2,500 to $2,999 | 140 |
| $3,000 or more | 0 |
| Median (dollars) | 710 |
| No rent paid | 356 |
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