Quincy

Population: 39,188
Median household income: $56,372
Median home value: $146,100

Quincy is a community in Adams County, Illinois, home to 39,188 residents. Its median household income of $56,372 runs below the Adams County figure of $64,962.

Between 2019 and 2023, Quincy's population declined 2.7% from 40,280 to 39,188, while its median home value rose 25.6% from $116,300 to $146,100.

White (non-Hispanic) residents are the largest group, 86.3% of the population. 77.8% of workers drive to work alone.

Demographics

ACS 2019–2023

Population: 39,188
Median age: 40.1 yrs
Median household income: $56,372
Median home value: $146,100
Median gross rent: $824
Housing units: 19,026
Homeownership rate: 64.8%
Bachelor's degree or higher: 26.6%
Unemployment rate: 4.2%

Trends

ACS 5-year · 2019–2023

Population

40,28039,188

Median household income

$46,189$56,372

Median home value

$116,300$146,100

Median gross rent

$710$824

Year	Population	Median household income	Median home value	Median gross rent
2019	40,280	$46,189	$116,300	$710
2020	40,111	$46,935	$118,800	$688
2021	39,687	$50,857	$122,900	$710
2022	39,441	$54,199	$141,200	$776
2023	39,188	$56,372	$146,100	$824

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 55.8%

5 to 1715.8%

18 to 248.9%

25 to 3413.2%

35 to 4412.6%

45 to 5410.8%

55 to 6412.9%

65 to 7410.3%

75 and over9.6%

	Count	Share
Under 5	2,275	5.8%
5 to 17	6,194	15.8%
18 to 24	3,486	8.9%
25 to 34	5,169	13.2%
35 to 44	4,937	12.6%
45 to 54	4,243	10.8%
55 to 64	5,056	12.9%
65 to 74	4,053	10.3%
75 and over	3,775	9.6%

Race & ethnicity

	Count	Share
White (non-Hispanic)	33,813	86.3%
Black or African American	2,035	5.2%
American Indian & Alaska Native	14	0.0%
Asian	404	1.0%
Native Hawaiian & Pacific Islander	2	0.0%
Some other race	66	0.2%
Two or more races	1,925	4.9%
Hispanic or Latino (any race)	929	2.4%

Educational attainment (age 25+)

No high school diploma7.7%

High school graduate34.0%

Some college or associate's31.6%

Bachelor's degree17.4%

Graduate or professional degree9.2%

	Count	Share
No high school diploma	2,107	7.7%
High school graduate	9,269	34.0%
Some college or associate's	8,617	31.6%
Bachelor's degree	4,737	17.4%
Graduate or professional degree	2,503	9.2%

Commute to work

Mean travel time to work: 14 min

Drove alone77.8%

Carpooled9.1%

Public transit0.9%

Walked3.3%

Bicycle0.6%

Worked from home7.3%

Other means1.1%

How workers get to work

	Count	Share
Drove alone	14,844	77.8%
Carpooled	1,733	9.1%
Public transit	170	0.9%
Walked	637	3.3%
Bicycle	116	0.6%
Worked from home	1,385	7.3%
Other means	201	1.1%

Travel time

	Count	Share
Under 15 min	11,739	66.3%
15 to 29 min	4,144	23.4%
30 to 44 min	961	5.4%
45 to 59 min	546	3.1%
60+ min	311	1.8%

Households

Average household size: 2.16
Poverty rate: 15.4% (5,839 of 37,843)

	Count	Share
Family households	9,128	52.3%
Nonfamily households	8,323	47.7%

Housing

Median year structure built: 1959

Occupancy

	Count	Share
Occupied	17,451	91.7%
Vacant	1,575	8.3%

Tenure (of occupied units)

	Count	Share
Owner-occupied	11,300	64.8%
Renter-occupied	6,151	35.2%

1-unit, detached69.1%

1-unit, attached5.1%

2 to 4 units9.9%

5 to 19 units8.0%

20 or more units5.9%

Mobile home & other2.0%

Units in structure

	Count	Share
1-unit, detached	13,152	69.1%
1-unit, attached	965	5.1%
2 to 4 units	1,888	9.9%
5 to 19 units	1,522	8.0%
20 or more units	1,127	5.9%
Mobile home & other	372	2.0%

Geography

Place GEOID: 1762367
Type (LSAD): 25
Land area: 16 sq mi
Water area: 0.04 sq mi
Center point: 39.9337, -91.3793