Knox County, Illinois

16 cities & places have their primary county here.

Population: 49,294
Median household income: $53,291
Median home value: $104,900

Home to 49,294 residents, Knox County is one of Illinois's counties. 16 cities and places have their primary county here. The median household income of $53,291 is below the Illinois median ($81,702).

Between 2019 and 2023, Knox County's population declined 2.4% from 50,508 to 49,294, while its median household income rose 20.8% from $44,129 to $53,291.

76.9% of homes are single-family detached houses. The typical home was built around 1956.

Demographics

ACS 2019–2023

Population: 49,294
Median age: 42.4 yrs
Median household income: $53,291
Median home value: $104,900
Median gross rent: $725
Housing units: 23,788
Homeownership rate: 69.8%
Bachelor's degree or higher: 20.3%
Unemployment rate: 4.5%

Trends

ACS 5-year · 2019–2023

Population

50,50849,294

Median household income

$44,129$53,291

Median home value

$83,000$104,900

Median gross rent

$634$725

Year	Population	Median household income	Median home value	Median gross rent
2019	50,508	$44,129	$83,000	$634
2020	50,052	$44,464	$83,700	$623
2021	50,193	$45,994	$86,300	$620
2022	49,751	$50,263	$96,800	$694
2023	49,294	$53,291	$104,900	$725

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 55.5%

5 to 1714.6%

18 to 249.8%

25 to 3411.1%

35 to 4411.7%

45 to 5411.6%

55 to 6413.6%

65 to 7412.6%

75 and over9.6%

	Count	Share
Under 5	2,728	5.5%
5 to 17	7,221	14.6%
18 to 24	4,811	9.8%
25 to 34	5,451	11.1%
35 to 44	5,756	11.7%
45 to 54	5,700	11.6%
55 to 64	6,709	13.6%
65 to 74	6,200	12.6%
75 and over	4,718	9.6%

Race & ethnicity

	Count	Share
White (non-Hispanic)	39,853	80.8%
Black or African American	3,810	7.7%
American Indian & Alaska Native	31	0.1%
Asian	501	1.0%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	135	0.3%
Two or more races	1,874	3.8%
Hispanic or Latino (any race)	3,090	6.3%

Educational attainment (age 25+)

No high school diploma10.7%

High school graduate34.9%

Some college or associate's34.1%

Bachelor's degree13.1%

Graduate or professional degree7.2%

	Count	Share
No high school diploma	3,689	10.7%
High school graduate	12,055	34.9%
Some college or associate's	11,781	34.1%
Bachelor's degree	4,527	13.1%
Graduate or professional degree	2,482	7.2%

Commute to work

Mean travel time to work: 21 min

Drove alone80.5%

Carpooled8.9%

Public transit0.5%

Walked3.6%

Bicycle0.2%

Worked from home5.7%

Other means0.6%

How workers get to work

	Count	Share
Drove alone	16,425	80.5%
Carpooled	1,807	8.9%
Public transit	112	0.5%
Walked	731	3.6%
Bicycle	37	0.2%
Worked from home	1,171	5.7%
Other means	128	0.6%

Travel time

	Count	Share
Under 15 min	9,348	48.6%
15 to 29 min	5,750	29.9%
30 to 44 min	1,849	9.6%
45 to 59 min	1,020	5.3%
60+ min	1,273	6.6%

Households

Average household size: 2.18
Poverty rate: 15.9% (7,220 of 45,526)

	Count	Share
Family households	11,573	55.7%
Nonfamily households	9,192	44.3%

Housing

Median year structure built: 1956

Occupancy

	Count	Share
Occupied	20,765	87.3%
Vacant	3,023	12.7%

Tenure (of occupied units)

	Count	Share
Owner-occupied	14,490	69.8%
Renter-occupied	6,275	30.2%

1-unit, detached76.9%

1-unit, attached0.9%

2 to 4 units7.6%

5 to 19 units6.1%

20 or more units4.3%

Mobile home & other4.2%

Units in structure

	Count	Share
1-unit, detached	18,301	76.9%
1-unit, attached	210	0.9%
2 to 4 units	1,806	7.6%
5 to 19 units	1,461	6.1%
20 or more units	1,013	4.3%
Mobile home & other	997	4.2%

Geography

County GEOID: 17095
State: Illinois
Land area: 716 sq mi
Water area: 3.44 sq mi
Center point: 40.9309, -90.2138

Cities & places

Compare with nearby counties

Other counties in Illinois

101