PlainZIP

Quincy, IL · standard

ZIP Code 62305

Adams County, Illinois — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

18,052
50/sq mi
$83,598
Median income
$213,600
Median home value
35.0%
Bachelor's or higher

The verdict

Quincy pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.

Top 34%
household income, US ZIPs
47th pct
home value, US ZIPs
50
people per sq mi
85%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 62305 against every reporting US ZIP.

ZIP code 62305 is classified by USPS as a standard delivery area and covers roughly 358.2 square miles in Quincy, Adams County, Illinois. The area is home to 18,052 residents, producing a population density of 50 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 62305 against Illinois and the nation.

On the economic side, the median household income for ZIP 62305 sits at $83,598 (4% above the Illinois average), while per-capita income is $45,435. The poverty rate stands at 7.2% and the unemployment rate at 1.8%. On housing, the median home value is $213,600 (11% above the state average) with median rent at $926 per month, and 84.7% of occupied units are owner-occupied, a direct signal of whether 62305 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 35.0% of adults hold a bachelor's degree or higher, the median age is 46.4, and the average commute is 15 minutes. We also surface 4 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Adams County, so you can benchmark 62305 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Top industries in ZIP 62305

Top 5 sectors by establishment count

Which industries have the most business establishments in ZIP 62305.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 62305, Quincy, IL · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.

Quick Facts

18,052

Population

358.2

Area (sq mi)

50

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 62305?

46.4

Median Age

47.5%

Male

52.5%

Female

0.8%

Foreign-Born

White 95.0%
African American 1.2%
Asian 0.4%
American Indian or Alaska Native 0.1%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 3.1%
Hispanic or Latino 1.3%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$83,598

Median Household Income

+4% vs state

$45,435

Per Capita Income

7.2%

Poverty Rate

1.8%

Unemployment Rate

15.1 min

Mean Commute Time

How ZIP 62305 ranks nationally

Household income vs. every US ZIP code

Median household income — the full national distribution, with this ZIP marked

$83,598 Top 34% higher than 66% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 64.6%
Bachelor's Degree or Higher 35.0%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

8,405

Total Housing Units

7,990

Occupied Units

415

Vacant Units

2.37

Avg Household Size

Occupancy Type

Owner 84.7%
Renter 15.3%

$213,600

Median Home Value

+11% vs state

$926

Median Rent

1980

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+1.5%

YoY Change (2024)

195

HPI Index (2000 = 100)

+95%

Total Change Since 2000

Home values in ZIP 62305 have increased 1.5% over the past year (2024). Since 2000, this ZIP has seen +95% cumulative appreciation.

Year Annual Change HPI Index
2020 +2.1% 154
2021 +6.9% 165
2022 +11.6% 184
2023 +4.8% 193
2024 +1.5% 195

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 477 business establishments in ZIP 62305, employing approximately 9,070 people with a combined annual payroll of $497,120,000.

477

Businesses

9,070

Employees

$497.1M

Annual Payroll

14

Industry Sectors

Industry Establishments % of Total
Retail trade 75 15.7%
Construction 74 15.5%
Other services (except public administration) 55 11.5%
Accommodation and food services 34 7.1%
Manufacturing 33 6.9%
Administrative and support and waste management and remediation services 33 6.9%
Health care and social assistance 33 6.9%
Professional, scientific, and technical services 28 5.9%
Wholesale trade 26 5.5%
Finance and insurance 26 5.5%
Real estate and rental and leasing 21 4.4%
Transportation and warehousing 15 3.1%
Arts, entertainment, and recreation 13 2.7%
Information 7 1.5%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 62305 vs 62301 →

ZIP 62305 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 62305 ranks #2 by population — useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 62305 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 62305 ranks #2 of 5 neighboring ZIPs — local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
62301 Quincy, IL 33,758 2.2 mi
62338 Fowler, IL 1,473 7.1 mi
62360 Payson, IL 1,656 9.0 mi
62359 Paloma, IL 166 10.3 mi

More ZIP Codes in Adams County

62301 standard
Quincy, IL
Pop: 33,758
62347 standard
Liberty, IL
Pop: 2,282
62320 standard
Camp Point, IL
Pop: 2,185
62351 standard
Mendon, IL
Pop: 1,856
62360 standard
Payson, IL
Pop: 1,656
62338 standard
Fowler, IL
Pop: 1,473

Related Areas

Adams County Quincy, IL Illinois

Frequently Asked Questions

What county is ZIP code 62305 in? ▼
ZIP code 62305 (Quincy) is located in Adams County, Illinois. Adams County contains multiple ZIP codes, see the full list at /counties/adams-il.
What is the population of ZIP code 62305? ▼
ZIP code 62305 in Quincy, IL has a population of 18,052 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 62305? ▼
The median household income in ZIP 62305 is $83,598, which is 10% above the national average of $76,288.
What is the average home value in ZIP 62305? ▼
The median home value in ZIP 62305 is $213,600, which is 23% below the national average of $278,155.
What is the demographic makeup of ZIP 62305? ▼
The largest racial group in ZIP 62305 is White at 95.0%. Hispanic or Latino residents make up 1.3% of the population.
How many businesses are in ZIP code 62305? ▼
ZIP code 62305 has 477 business establishments employing approximately 9,070 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 62305? ▼
The top industries by establishment count in ZIP 62305 are: Retail trade (75), Construction (74), Other services (except public administration) (55). There are 14 industry sectors represented in total.
How have home values changed in ZIP code 62305? ▼
According to the FHFA House Price Index, home values in ZIP 62305 increased by 1.5% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 95%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 62305? ▼
In ZIP code 62305, 64.6% of residents aged 25+ have a high school diploma or higher, and 35.0% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 62305? ▼
The mean commute time for workers in ZIP code 62305 is 15.1 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 62305? ▼
In ZIP code 62305, approximately 84.7% of occupied housing units are owner-occupied and 15.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 62305? ▼
The poverty rate in ZIP code 62305 is 7.2% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

ZIP Code Research Guides

Reading Census Demographics
How to interpret population, income, and education data from the Census Bureau.
Understanding ZIP Code Data
What ZIP codes are, how ZCTAs differ, and what the data reveals.
Best ZIP Codes for Families
Key factors to evaluate when choosing a family-friendly neighborhood.
ZIP Codes for Relocation
Data-driven tips for evaluating ZIP codes before a move.

Official Data Resources for Quincy, IL

Verify and explore additional data for this area using these official government sources.

U.S. Census Bureau
Official demographic, economic, and housing data from the American Community Survey.
HUD Fair Market Rents
Department of Housing and Urban Development rental cost estimates by metropolitan area.
FBI Uniform Crime Reports
Official crime statistics compiled from law enforcement agencies nationwide.
FHFA House Price Index
Federal Housing Finance Agency home value trends based on repeat sales and appraisals.

Read our methodology to see how this data is sourced, computed, and verified.