PlainZIP

Knoxville, IL · standard

ZIP Code 61448

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

3,823
35/sq mi
$82,500
Median income
$146,100
Median home value
24.0%
Bachelor's or higher

The verdict

Knoxville pairs an above-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.

Top 35%
household income, US ZIPs
24th pct
home value, US ZIPs
35
people per sq mi
87%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 61448 against every reporting US ZIP.

ZIP code 61448 is classified by USPS as a standard delivery area and covers roughly 109.2 square miles in Knoxville, Knox County, Illinois. The area is home to 3,823 residents, producing a population density of 35 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 61448 against Illinois and the nation.

On the economic side, the median household income for ZIP 61448 sits at $82,500 (3% above the Illinois average), while per-capita income is $35,509. The poverty rate stands at 8.9% and the unemployment rate at 4.7%. On housing, the median home value is $146,100 (24% below the state average) with median rent at $614 per month, and 86.6% of occupied units are owner-occupied, a direct signal of whether 61448 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 24.0% of adults hold a bachelor's degree or higher, the median age is 45.2, and the average commute is —. We also surface 9 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Knox County, so you can benchmark 61448 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 61448

Top 5 sectors by establishment count

Which industries have the most business establishments in ZIP 61448.

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 61448, Knoxville, 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

3,823

Population

109.2

Area (sq mi)

35

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 61448?

45.2

Median Age

45.8%

Male

54.2%

Female

0.9%

Foreign-Born

White 96.6%
African American 0.6%
Asian 0.1%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 2.8%
Hispanic or Latino 0.2%

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?

$82,500

Median Household Income

+3% vs state

$35,509

Per Capita Income

8.9%

Poverty Rate

4.7%

Unemployment Rate

How ZIP 61448 ranks nationally

Household income vs. every US ZIP code

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

$82,500 Top 35% higher than 65% 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 59.9%
Bachelor's Degree or Higher 24.0%

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

What does housing look like?

1,864

Total Housing Units

1,736

Occupied Units

128

Vacant Units

2.19

Avg Household Size

Occupancy Type

Owner 86.6%
Renter 13.4%

$146,100

Median Home Value

-24% vs state

$614

Median Rent

1971

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

+22.9%

YoY Change (2024)

181

HPI Index (2000 = 100)

+81%

Total Change Since 2000

Home values in ZIP 61448 have increased 22.9% over the past year (2024). Since 2000, this ZIP has seen +81% cumulative appreciation.

Year Annual Change HPI Index
2020 +4.0% 126
2021 +4.4% 131
2022 +9.2% 143
2023 +2.9% 147
2024 +22.9% 181

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 59 business establishments in ZIP 61448, employing approximately 312 people with a combined annual payroll of $10,403,000.

59

Businesses

312

Employees

$10.4M

Annual Payroll

7

Industry Sectors

Industry Establishments % of Total
Other services (except public administration) 12 20.3%
Construction 9 15.3%
Retail trade 7 11.9%
Health care and social assistance 7 11.9%
Accommodation and food services 7 11.9%
Finance and insurance 5 8.5%
Administrative and support and waste management and remediation services 3 5.1%

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 61448 vs 61430 →

ZIP 61448 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 61448 ranks #3 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 61448 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 61448 ranks #2 of 9 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
61430 East Galesburg, IL 828 3.4 mi
61436 Gilson, IL 951 5.2 mi
61428 Dahinda, IL 986 7.3 mi
61467 Oneida, IL 1,048 9.7 mi
61401 Galesburg, IL 34,788 7.2 mi
61488 Wataga, IL 1,120 7.8 mi
61439 Henderson, IL 269 8.7 mi
61485 Victoria, IL 560 9.8 mi
61410 Abingdon, IL 3,912 12.2 mi

More ZIP Codes in Knox County

61401 standard
Galesburg, IL
Pop: 34,788
61410 standard
Abingdon, IL
Pop: 3,912
61488 standard
Wataga, IL
Pop: 1,120
61572 standard
Yates City, IL
Pop: 1,068
61467 standard
Oneida, IL
Pop: 1,048
61428 standard
Dahinda, IL
Pop: 986

Related Areas

Knox County Knoxville, IL Illinois

Frequently Asked Questions

What county is ZIP code 61448 in? ▼
ZIP code 61448 (Knoxville) is located in Knox County, Illinois. Knox County contains multiple ZIP codes, see the full list at /counties/knox-il.
What is the population of ZIP code 61448? ▼
ZIP code 61448 in Knoxville, IL has a population of 3,823 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 61448? ▼
The median household income in ZIP 61448 is $82,500, which is 8% above the national average of $76,288.
What is the average home value in ZIP 61448? ▼
The median home value in ZIP 61448 is $146,100, which is 47% below the national average of $278,155.
What is the demographic makeup of ZIP 61448? ▼
The largest racial group in ZIP 61448 is White at 96.6%. Hispanic or Latino residents make up 0.2% of the population.
How many businesses are in ZIP code 61448? ▼
ZIP code 61448 has 59 business establishments employing approximately 312 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 61448? ▼
The top industries by establishment count in ZIP 61448 are: Other services (except public administration) (12), Construction (9), Retail trade (7). There are 7 industry sectors represented in total.
How have home values changed in ZIP code 61448? ▼
According to the FHFA House Price Index, home values in ZIP 61448 increased by 22.9% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 81%. 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 61448? ▼
In ZIP code 61448, 59.9% of residents aged 25+ have a high school diploma or higher, and 24.0% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 61448? ▼
In ZIP code 61448, approximately 86.6% of occupied housing units are owner-occupied and 13.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 61448? ▼
The poverty rate in ZIP code 61448 is 8.9% 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 Knoxville, 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.