City

Quincy, IL

3 ZIP codes  ·  Adams County  ·  Illinois

👥50,064Population
💰$63,150Median HH Income▼ 17% below avg
🎂41.6Median Age
🏠$154,417Median Home Value▼ 45% below avg
🎓38.5%College Grads≈ Avg
📊3.9%Unemployment▼ 20% below avg
People & Population (ACS 2023 — weighted avg)
♂ Male 48.1% Female 51.9% ♀

Race & Ethnicity

White: 88.4%Hispanic: 2.1%Black: 4.5%Asian: 0.8%Other: 4%Race
White88.4%
Hispanic2.1%
Black4.5%
Asian0.8%
Other4.0%

Age Breakdown

Under 5
6%
5–17
16%
18–24
9%
25–44
24%
45–64
25%
65+
9%

Key Indicators

Median Age41.6 yrs
Avg HH Size2.24
Below Poverty13.5% ▲ 35% above avg
College Grads38.5% ≈ Avg
Unemployment3.9% ▼ 20% below avg
No HS Diploma107 (0.3%)
HS Graduate11,065 (33.9%)
Some College4,431 (13.6%)
Associates4,437 (13.6%)
Bachelors3,109 (9.5%)
Graduate Degree9,502 (29.1%)

Education

No HS: 0.3%HS Grad: 33.9%Some College: 13.6%Associates: 13.6%Bachelors: 9.5%Graduate: 29.1%Edu
No HS0.3%
HS Grad33.9%
Some College13.6%
Associates13.6%
Bachelors9.5%
Graduate29.1%
Housing & Income

Housing Tenure

Owner: 69.4%Renter: 30.6%Tenure
Owner69.4%
Renter30.6%

Home Value Distribution

Under $50k
9%
$50k–$100k
15%
$100k–$150k
23%
$150k–$200k
20%
$200k–$300k
19%
$300k–$500k
12%
Over $500k
2%

Financials

Median HH Income$63,150 ▼ 17% below avg
Median Home Value$154,417 ▼ 45% below avg
Home/Income Ratio2.4x (nat avg ~3.5x)
Median Rent$836/mo
Total Housing Units23,639
Vacant Units1,851

Income Distribution

Under $25k
20%
$25k–$50k
18%
$50k–$75k
20%
$75k–$100k
14%
$100k–$150k
15%
$150k–$200k
7%
Over $200k
6%
Employment & Commute

How People Get to Work

Drove Alone
89%
Public Transit
1%
Walked
3%
Work From Home
7%

Commute Time

Under 15 min
61%
15–30 min
28%
30–45 min
7%
Over 45 min
4%
Housing Stock

Year Built

Before 1940
4%
1940s–1950s
17%
1960s–1970s
10%
1980s–1990s
10%
2000+
58%
About Quincy, IL

Quincy is a city in Illinois, located in Adams County. The city spans 3 ZIP codes and is home to approximately 50,064 residents. It is a middle-aged city, with a median age of 41.55 years.

Economically, Quincy is a solidly middle-class community. The median household income of $63,150 is below the national average. Approximately 13.5% of residents live below the poverty line. The unemployment rate is 3.9%, below the national average.

The real estate market in Quincy is an affordable housing market. Median home values stand at $154,417, which is below the national average. Renters typically pay around $836 per month. Homeownership is high at 69.4%, typical of suburban and family-oriented communities.

The population of Quincy is moderately educated. 38.5% of adults hold a bachelor's degree or higher — near the national average. The community is primarily White (88.44%).

Quincy, IL offers residents a cost-conscious lifestyle within Illinois. Spread across 3 ZIP codes, the city's neighborhoods vary in character, density, and demographics — explore each ZIP code below for a detailed breakdown.

ZIP Codes in Quincy
ZIPPopulationMedian IncomeMedian HomeMedian RentUnemp.CollegeOwner Occ.
62301 30,987 $52,212 $124,200 $805 5.0% 34.1% 60.3%
62305 19,077 $80,918 $203,500 $887 2.3% 45.6% 84.2%