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Quincy, Illinois Population 2021

39,751

Quincy is a city located in Adams County Illinois. It is also the county seat of Adams County. With a 2020 population of 39,751, it is the 42nd largest city in Illinois and the 991st largest city in the United States . Quincy is currently declining at a rate of -0.25% annually and its population has decreased by -2.17% since the most recent census, which recorded a population of 40,633 in 2010. Quincy reached it's highest population of 45,288 in 1970. Spanning over 16 miles, Quincy has a population density of 2,530 people per square mile.

The average household income in Quincy is $65,733 with a poverty rate of 15.16%. The median rental costs in recent years comes to $710 per month, and the median house value is $116,300. The median age in Quincy is 40.7 years, 39.2 years for males, and 42.1 years for females.

Quincy Demographics

According to the most recent ACS, the racial composition of Quincy was:

White: 89.99%
Black or African American: 6.42%
Two or more races: 2.29%
Asian: 0.83%
Other race: 0.25%
Native American: 0.23%
Native Hawaiian or Pacific Islander: 0.00%

The current population of Quincy, Illinois is 39,751 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 40,048.The last official US Census in 2010 recorded the population at 40,633.

Quincy, Illinois Population 2021

2019 and 2020 population is estimated by projecting the raw 2018 numbers.

Year	Population	Growth	Growth Rate
2021	74,709	-251	-0.34%
2020	74,960	-251	-0.33%
2019	75,211	-251	-0.33%
2018	75,462	-547	-0.72%
2017	76,009	-538	-0.71%
2016	76,547	-426	-0.56%
2015	76,973	-92	-0.12%
2014	77,065	-45	-0.06%
2013	77,110	-148	-0.19%
2012	77,258	-173	-0.22%
2011	77,431	61	0.08%
2010	77,370		0.00%

Quincy Metro Area Population by Year

Population by Race

Race	Population	Percentage
White	36,246	89.99%
Black or African American	2,585	6.42%
Two or More Races	924	2.29%
Asian	333	0.83%
Some Other Race	99	0.25%
American Indian and Alaska Native	92	0.23%
Native Hawaiian and Other Pacific Islander	1	0.00%

Quincy Population by Race

Quincy Population Pyramid $2021

Quincy Population by Age

Quincy Renter vs Owner Occupied by Household Type

Quincy Household Types

Type	Owner	Renter
Married	86.5%	13.5%
All	64.3%	35.7%
Female	49.1%	50.9%
Non Family	46.7%	53.3%
Male	41.3%	58.7%

64.3%

Rate of Home Ownership

Quincy Households and Families

Type	Count	Average Size	Owned
All	17,254	2.26	64.3
Married	7,611	2.99	86.5
Non Family	7,046	1.19	46.7
Female	2,064	2.96	49.1
Male	533	3.35	41.3

2.92

Average Family Size

2.26

Average Household Size

Quincy Households by Type

Education Attained	Count	Percentage
Less Than 9th Grade	680	2.43%
9th to 12th Grade	1,681	6.00%
High School Graduate	9,856	35.18%
Some College	6,921	24.71%
Associates Degree	2,193	7.83%
Bachelors Degree	4,308	15.38%
Graduate Degree	2,375	8.48%

Quincy Educational Attainment by Sex (over 25)

Quincy Educational Attainment by Race

Race	Total	High School	Bachelors
White	25,596	23,765	6,225
Black	1,578	1,157	118
Hispanic	394	369	151
2+ Races	220	179	86
Asian	180	180	127
Native American	92	43
Other Race	32	26	19

The highest rate of high school graduation is among asian people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 70.56%.

Quincy Educational Attainment by Race

Name	Average	Male	Female
Overall	$35,754	$41,333	$29,404
Less Than 9th Grade	$21,250	$25,556	$
High School Graduate	$31,542	$38,102	$25,423
Some College	$32,290	$41,382	$24,840
Bachelors Degree	$40,873	$42,665	$36,426
Graduate Degree	$54,030	$75,040	$47,063

$35,754

Average Earnings

$41,333

Average Male

$29,404

Average Female

Quincy Earnings by Educational Attainment

Quincy Language by Age

Quincy Language

98.14% of Quincy residents speak only English, while 1.86% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.70% of the population.

Quincy Language

Quincy Poverty by Race

Name	Total	In Poverty	Poverty Rate
White	34,685	4,510	13.00%
Black	2,375	928	39.07%
Multiple	903	334	36.99%
Hispanic	646	74	11.46%
Asian	323	44	13.62%
Native	92	19	20.65%
Other	89	10	11.24%

15.16%

Overall Poverty Rate

12.83%

Male Poverty Rate

17.25%

Female Poverty Rate

Poverty in Quincy

The race most likely to be in poverty in Quincy is Black, with 39.07% below the poverty level.

The race least likely to be in poverty in Quincy is Other, with 11.24% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.55%. Among those working part-time, it was 16.91%, and for those that did not work, the poverty rate was 23.39%.

Quincy Poverty

Name	Poverty
Less Than 9th Grade	25.49%
High School	13.22%
Some College	12.45%
Bachelors or Greater	4.53%

Quincy Poverty Rate by Education

Rate	Poverty
Male Unemployed	43.85%
Female Unemployed	39.79%
Female Employed	9.61%
Male Employed	4.28%

Quincy Poverty Rate by Employment Status and Sex

Quincy Income by Household Type

Name	Median	Mean
Households	$46,189	$65,733
Families	$62,370	$80,103
Married Families	$75,890	-
Non Families	$30,935	$42,880

Income by Household Type

Quincy Marital Status

Marriage Rates

48.9%

Overall Marriage Rate

53.4%

Male Marriage Rate

45.0%

Female Marriage Rate

Quincy Married by Age and Sex

Quincy Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Quincy Marital Status by Race

Quincy Marital Status

2,718

Number of Veterans

2,526

Male Veterans

192

Female Veterans

War	Veterans
Vietnam	835
Second Gulf War	438
First Gulf War	430
Korea	249
World War II	124

Quincy Veterans by War

Age Group	Veterans
75+	808
65 to 74	744
35 to 54	569
55 to 64	307
18 to 34	290

Quincy Veterans by Age

Name	Veterans	% of Total
White	2,662	9.15%
Hispanic	42	8.86%
Black	39	2.20%
Native American	9	9.78%
Asian	8	3.83%

Quincy Veterans by Race

Quincy Veterans by Education

6.41%

Veteran Poverty Rate

29.07%

Veteran Disability Rate

Quincy Veterans by Education

63.5%

Labor Force Participation

60.1%

Employment Rate

5.3%

Unemployment Rate

Quincy Employment by Age

Quincy Employment by Race

Quincy Employment by Education

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

75.25%

Born in Quincy

98.62%

Native Born

1.38%

Foreign Born

0.37%

Non Citizen

1.01%

Naturalized

Place of Birth

98.62% of Quincy residents were born in the United States, with 75.25% having been born in Illinois. 0.37% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Quincy Place of Birth

Year	Population	Growth	Annual Growth Rate
2021	39,751	-99	-0.25%
2020	39,850	-99	-0.25%
2019	39,949	-99	-0.25%
2018	40,048	-222	-0.55%
2017	40,270	-221	-0.55%
2016	40,491	-200	-0.49%
2015	40,691	-48	-0.12%
2014	40,739	-32	-0.08%
2013	40,771	-57	-0.14%
2012	40,828	-66	-0.16%
2011	40,894	133	0.33%
2010	40,761	395	0.10%
2000	40,366	685	0.17%
1990	39,681	-2,873	-0.70%
1980	42,554	-2,734	-0.62%
1970	45,288	1,495	0.34%
1960	43,793	2,343	0.55%
1950	41,450	981	0.24%
1940	40,469	1,228	0.31%
1930	39,241	3,263	0.87%
1920	35,978	-609	-0.17%
1910	36,587	335	0.09%
1900	36,252	4,758	1.42%
1890	31,494	4,226	1.45%
1880	27,268	3,216	1.26%
1870	24,052	10,334	5.78%
1860	13,718	6,816	7.11%
1850	6,902		0.00%

Quincy, Illinois Population 2021

Quincy Demographics

Quincy, Illinois Population 2021

Quincy Metro Area Population by Year

Population by Race

Quincy Population by Race

Quincy Population Pyramid $2021

Quincy Median Age

Quincy Adults

Quincy Age Dependency

Quincy Sex Ratio

Quincy Population by Age

Quincy Renter vs Owner Occupied by Household Type

Quincy Household Types

Quincy Households and Families

Quincy Households by Type

Quincy Educational Attainment by Sex (over 25)

Quincy Educational Attainment by Race

Quincy Educational Attainment by Race

Quincy Earnings by Educational Attainment

Quincy Language by Age

Quincy Language

Quincy Language

Quincy Poverty by Race

Poverty in Quincy

Quincy Poverty

Quincy Poverty Rate by Education

Quincy Poverty Rate by Employment Status and Sex

Quincy Income by Household Type

Income by Household Type

Quincy Marital Status

Marriage Rates

Quincy Married by Age and Sex

Quincy Marriage

Quincy Marital Status by Race

Quincy Marital Status

Quincy Veterans by War

Quincy Veterans by Age

Quincy Veterans by Race

Quincy Veterans by Education

Quincy Veterans by Education

Quincy Employment by Age

Quincy Employment by Race

Quincy Employment by Education

Origin of Non-Citizens

Origin of Naturalized Citizens

Place of Birth

Quincy Place of Birth

Quincy Population by Year