Quincy ZIP Codes — Adams County, IL

There are 3 unique ZIP codes in Quincy, Illinois. Area code: 217.

ZIP codes

150.42

sq mi land

8.63

sq mi water

217

area code

Quincy, IL ZIP code map

About Quincy, IL

Quincy, Illinois, is a charming city located in the western part of the state, nestled alongside the Mississippi River. Known for its rich history and beautiful architecture, Quincy is a blend of small-town charm and urban amenities. The city serves as the county seat of Adams County and is recognized for its vibrant community and cultural heritage.

Location & geography

Quincy is strategically located in the western part of Illinois and is bordered by the majestic Mississippi River to the west. It is approximately 95 miles west of Springfield, 120 miles north of St. Louis, and about 90 miles south of Iowa City, making it accessible to several major cities. Covering a total area of 150.42 square miles, Quincy also boasts a water area of 8.63 square miles, providing residents with scenic waterfront views.

Community & economy

The character of Quincy is defined by its friendly residents and a strong sense of community belonging. The city hosts a diverse economy with key industries including education, healthcare, and manufacturing, which contribute to a stable job market. Daily life in Quincy is enriched by local events, parks, and recreational activities that foster connections among neighbors.

Transportation

Quincy is easily accessible via major highways, most notably U.S. Route 24 and Illinois Route 57, which connect the city to surrounding areas. The nearest airport is Quincy Regional Airport, providing regional flight options for residents and visitors. Public transit options include local bus services that help facilitate movement within the city.

History

Founded in 1825, Quincy has a notable history marked by its role as a trading post due to its location near the Mississippi River. Key industries in its early years included agriculture and transportation, which laid the groundwork for its economic development. Quincy has also been the site of various historical events, including being a major hub in the abolitionist movement during the 19th century.

Did you know?

A little-known fact about Quincy is that it is home to the annual Gem City Jam, a popular music festival that attracts thousands of visitors each year. Additionally, Quincy's historical architecture includes beautiful mansions dating back to the 19th century, offering a glimpse into the city’s rich past.

ZIP codes for Quincy, IL (3)

ZIP code	City	County	Map
62301	Quincy	Adams	View map
62305	Quincy	Adams	View map
62306	Quincy	Adams	View map

Demographics & statistics

50,417

Population

41.7

Median age

$63,839

Median household income

$35,851

Per capita income

$159,700

Median home value

$811

Median monthly rent

72.0%

Home ownership

12.3%

Poverty rate

4.1%

Unemployment

16,970

Housing units

29.4%

Bachelor's or higher

Age distribution

Male Female

1,435

Under 5

1,519

1,503

5–9

1,591

1,528

10–14

1,616

1,377

15–19

1,457

1,446

20–24

1,530

3,039

25–34

3,215

2,941

35–44

3,112

2,809

45–54

2,973

1,803

55–59

1,907

1,631

60–64

1,725

2,690

65–74

2,846

1,518

75–84

1,607

777

85+

822

← Male

Female →

Age summary

Group	Count	%
Under 18	10,886	21.9%
18 and over	39,531	78.2%
65 and over	10,260	20.8%
Median age	41.7 years

Race & ethnicity

White 88.5%

Black or African American 5%

Two or more races 3.7%

Hispanic or Latino 1.5%

Asian 0.9%

Other race 0.4%

American Indian / Alaska Native 0.1%

Group	Count	%
White	45,298	88.5%
Black or African American	2,551	5%
Two or more races	1,871	3.7%
Hispanic or Latino	773	1.5%
Asian	454	0.9%
Other race	207	0.4%
American Indian / Alaska Native	27	0.1%

Household income

Under $10k 5.4%

$10k–$15k 2.9%

$15k–$25k 9.5%

$25k–$35k 8.5%

$35k–$50k 11.4%

$50k–$75k 18.7%

$75k–$100k 14.5%

$100k–$150k 15.8%

$150k–$200k 7.9%

$200k+ 5.8%

Range	% of households
Under $10k	5.4%
$10k–$15k	2.9%
$15k–$25k	9.5%
$25k–$35k	8.5%
$35k–$50k	11.4%
$50k–$75k	18.7%
$75k–$100k	14.5%
$100k–$150k	15.8%
$150k–$200k	7.9%
$200k+	5.8%
Median income	$63,839

Housing

Home values

Under $50k 9.1%

$50k–$100k 15.8%

$100k–$150k 21.6%

$150k–$200k 20.1%

$200k–$300k 18.6%

$300k–$500k 12.6%

$500k–$1M 2.3%

$1M+ 0.2%

Housing overview

Metric	Value
Median home value	$159,700
Median rent / month	$811
Owner occupied	72.0%
Renter occupied	28.1%
Vacant	8.2%
Single-family detached	72.3%
Large apartment buildings	4.1%
Mobile homes	5.8%
Median rooms	5.9
Avg household size (owned)	2.43

Year built

Era	%
2020 or later	0.0%
2010–2019	4.9%
2000–2009	9.5%
1990–1999	11.1%
1980–1989	8.6%
1970–1979	14.8%
1960–1969	12.9%
1950–1959	12.0%
1940–1949	6.1%
1939 or earlier	20.4%

Bedrooms

Size	% of units
No bedroom (studio)	2.6%
1 bedroom	10.7%
2 bedrooms	26.4%
3 bedrooms	38.3%
4 bedrooms	16.5%
5+ bedrooms	5.7%

Vehicles per household

Vehicles	% of households
No vehicle	7.0%
1 vehicle	33.6%
2 vehicles	38.0%
3 or more	21.5%

Heating fuel

Fuel type	%
Utility gas	60.7%
Electricity	34.9%
Propane / LP gas	2.3%
Wood	0.6%
No fuel used	0.8%

Households & families

Household type	Count	%
Married-couple family	9,478	46.7%
Cohabiting couple	1,657	7.4%
Male householder, no spouse	4,231	18.0%
Female householder, no spouse	6,306	28.0%
Households with children under 18	5,620	26.3%
Households with seniors (65+)	7,172	34.2%
Average household size	2.31

Marital status

Status	Male	Female
Never married	31.7%	25.2%
Married	54.9%	49.1%
Separated	1.3%	1.7%
Widowed	3.4%	9.8%
Divorced	9.0%	14.3%

Education

Less than 9th grade 1.4%

Some HS, no diploma 4.8%

HS graduate 32.8%

Some college, no degree 22.0%

Associate's degree 9.5%

Bachelor's degree 19.0%

Graduate / professional 10.5%

Metric	%
HS diploma or higher	93.8%
Bachelor's or higher	29.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	861	8.1%
Kindergarten	583	5.4%
Elementary school	4,805	44.2%
High school	2,470	22.8%
College / grad school	2,256	19.6%

Employment

Industry of employment

Education & healthcare 28.4%

Retail trade 14.1%

Manufacturing 13.5%

Arts, food & hospitality 8.7%

Professional & management 6.1%

Finance & real estate 5.2%

Transportation & utilities 4.8%

Public administration 4.7%

Other services 4.3%

Wholesale trade 3.9%

Construction 3.5%

Agriculture & mining 1.8%

Information 1.4%

Occupation

Category	%
Management, business & arts	36.7%
Service	19.0%
Sales & office	22.8%
Natural resources & construction	6.9%
Production & transportation	14.8%

Employment type

Type	%
Private sector	83.4%
Government	12.2%
Self-employed	4.4%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	82.6%
Carpool	7.6%
Public transit	0.9%
Walk	2.3%
Other means	1.3%
Avg commute (minutes)	14.9

Poverty

All people 12.3%

Under 18 years 16.8%

18 and over 11.1%

Married-couple families 3.6%

Female-led households 25.8%

Income support

Source	% of households
Social Security	33.8%
Retirement income	24.1%
Supplemental Security	4.0%
Cash public assistance	1.9%
Food stamps / SNAP	12.8%

Health indicators

Condition	%
High blood pressure	35.6%
High cholesterol	33.3%
Heart disease	7.2%
Stroke	3.4%
Asthma	9.9%
Arthritis	28.0%
Kidney disease	3.2%
Pulmonary disease	7.7%
Cancer	7.6%

Behavior / access	%
Binge drinking	15.0%
No physical activity	25.9%
Less than 7 hrs sleep	31.1%
Fair or poor health	14.7%
Poor mental health	12.8%
Poor physical health	10.3%
No health insurance	10.2%
Visited doctor (checkup)	77.5%
Visited dentist	62.9%
Cholesterol screening	89.8%
Teeth loss	15.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	3,382	8.4%

Disability	%
Any disability	16.9%
Under 18	4.7%
18–64 years	14.4%
65 and over	38.3%

Health insurance coverage

Type	%
Private insurance	70.6%
Public insurance	38.5%
Uninsured under 19	3.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	47,463	94.4%
Spanish	221	0.5%
Other Indo-European	102	0.2%
Asian & Pacific Islander	47	0.1%
Other languages	66	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	49,645	98.5%
Born in same state	49,323	98.0%
Born in different state	37,389	74.1%
Foreign born	322	0.7%
Naturalized citizen	772	1.5%
Not a US citizen	540	77.4%

Ancestry

Ancestry	Count	%
Italian	5,340	10.6%
French	4,644	9.2%
Arab	3,271	6.5%
English	568	1.1%
Polish	298	0.6%

Ancestry	Count	%
Irish	112	0.2%
Dutch	104	0.2%
German	98	0.2%
Norwegian	10	0%

Technology access

Metric	% of households
Computer access	42.6%
Internet access	89.8%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Quincy, IL have?

Quincy, IL has two ZIP codes: 62301 and 62305. Each ZIP code serves a distinct delivery area within the city and surrounding region.