Knox County, IL Demographic Data
Knox County, IL Summary
Knox County is located in Illinois
- Population: 52,612
- Area: 719.81 sq. miles
- Land Area: 716.40 sq. miles
- Water Area: 3.42 sq. miles
- Population Density: 73.09 people per sq. mile
- Elevation: 652.23 ft
- Time Zone: Central Standard Time (GMT -6)
- Daylight Savings: Yes
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Knox County, IL Gender Breakdown
Gender
Number
Percent
National Avg
Female
25,572
49%
50.8
Male
26,180
51%
49.2
Total Population
51,752
323,128,000
Knox County, IL Age Breakdown
Age Group
Number
Percent
National Avg
Under 5 Years
2,668
5.2%
6.1
5 to 9 Years
2,606
5.0%
6.3
10 to 14 Years
3,219
6.2%
6.4
15 to 19 Years
3,349
6.5%
6.7
20 to 24 Years
3,850
7.4%
6.9
25 to 34 Years
5,831
11.3%
13.7
35 to 44 Years
5,896
11.4%
12.6
45 to 54 Years
6,770
13.1%
13.2
55 to 59 Years
3,867
7.5%
6.7
60 to 64 Years
3,562
6.9%
6.1
65 to 74 Years
5,462
10.6%
8.9
75 to 84 Years
3,231
6.2%
4.4
85 Years and Over
1,441
2.8%
1.9
Age Statistics
Number
Percent
National Avg
18 Years and over
41,451
80.1%
77.2
Female
20,687
49.9%
51.3
Male
20,764
50.1%
48.7
21 Years and over
39,181
75.7%
73.1
62 Years and over
12,194
23.6%
18.8
65 Years and over
10,134
19.6%
15.2
Female
5,688
56.1%
55.8
Male
4,446
43.9%
44.2
Median Age (years)
42
0.0%
0.0
Knox County, IL Race Breakdown
Race
Number
Percent
National Avg
One Race
50,999
98.5%
96.8
White
44,825
86.6%
72.6
Black or African American
4,400
8.5%
12.7
American Indian and Alaska Native
119
0.2%
0.8
Asian
558
1.1%
5.4
Asian Indian
117
0.2%
1.2
Chinese
131
0.3%
1.3
Filipino
221
0.4%
0.9
Japanese
2
0.0%
0.2
Korean
24
0.0%
0.4
Vietnamese
14
0.0%
0.6
Other Asian
49
0.1%
0.8
Native Hawaiian and Other Pacific Islander
0
0.0%
0.2
Native Hawaiian
0
0.0%
0.1
Guamanian or Chamorro
0
0.0%
0.0
Samoan
0
0.0%
0.0
Other Pacific Islander
0
0.0%
0.1
Some Other Race
1,097
2.1%
5.1
Two or More Races
753
1.5%
3.2
Hispanic Statistics
Number
Percent
National Avg
Hispanic or Latino (of any race)
2,778
5.4%
17.8
Mexican
2,349
4.5%
11.2
Puerto Rican
163
0.3%
1.7
Cuban
53
0.1%
0.7
Other Hispanic or Latino
213
0.4%
4.2
Not Hispanic or Latino
48,974
94.6%
82.2
Knox County, IL Educational Attainment
Education Level
Number
Percent
National Avg
Less than 9th grade
1,104
3.1%
5.4
9th to 12th grade, no diploma
3,224
8.9%
7.2
High school graduate (includes equivalent)
13,228
36.7%
27.2
Some college, no degree
8,239
22.8%
20.6
Associate's Degree
3,749
10.4%
8.4
Bachelor's Degree
4,148
11.5%
19.3
Graduate or professional degree
2,368
6.6%
11.9
Education Summary
Number
Percent
National Avg
< High School Graduate
4,328
12.0%
12.6
High School Graduate or Higher
31,732
88.0%
87.4
Bachelor's Degree or Higher
6,516
18.1%
31.2
Knox County, IL Marital Status
Marital Status
Number
Percent
National Avg
Never Married
14,118
32.6%
33.7%
Now Married
18,688
43.2%
47.5
Divorced
6,190
14.3%
11.0%
Separated
693
1.6%
2.0
Widowed
3,570
8.3
5.8%
Knox County, IL Language Spoken at Home
Language
Number
Percent
National Avg
English Only
46,504
94.7%
78.4%
Languages other than english
2,580
5.3%
21.6%
Spanish
1,361
2.8%
13.3%
Other indo-european languages
601
1.2%
3.7%
Asian and Pacific islander languages
357
0.7%
3.5%
Other Languages
261
0.5%
1.1%
Knox County, IL Household Income
Household Income
Number
Percent
National Avg
Less than $10,000
1,811
8.6%
6.7
$10,000 to $14,999
1,510
7.1%
4.8
$15,000 to $24,999
3,169
15.0%
9.7
$25,000 to $34,999
2,691
12.7%
9.5
$35,000 to $49,999
3,405
16.1%
13.0
$50,000 to $74,999
3,695
17.5%
17.7
$75,000 to $99,999
2,182
10.3%
12.3
$100,000 to $149,000
1,939
9.2%
14.0
$150,000 to $199,999
445
2.1%
5.8
$200,000 or more
299
1.4%
6.4
Median household income
40,605
57,617
Per capita income
22,939
31,128
Knox County, IL Employment Breakdown
Industry
Number
Percent
National Avg
Agriculture, forestry, fishing, hunting and mining
538
2.5%
1.7
Arts, entertainment, recreation, accommodation and food services
1,563
7.3%
9.8
Construction
1,045
4.9%
6.4
Educational services, health care and social assistance
6,465
30.3%
23.0
Finance, insurance, real estate, rental, and leasing
824
3.9%
6.6
Information
298
1.4%
2.1
Manufacturing
2,421
11.3%
10.1
Other services except public administration
971
4.5%
4.9
Professional, scientific, management, administrative and waste management services
1,103
5.2%
11.4
Public administration
733
3.4%
4.6
Retail trade
2,905
13.6%
11.5
Transportation, warehousing and utilities
1,727
8.1%
5.2
Wholesale trade
750
3.5%
2.7
Occupation
Number
Percent
National Avg
Construction, extraction, maintenance, and repair occupations
1,869
8.8%
8.8%
Management, professional, and related occupations
6,488
30.4%
37.6%
Production, transportation, and material moving occupations
4,005
18.8%
12.2%
Sales and office occupations
4,723
22.1%
23.3%
Service occupations
4,258
20.0%
18.1%
Knox County, IL Commute Statistics
Commute Type
Number
Percent
National Avg
Workers 16 Years and over
21,138
Car, truck, or van - drove alone
17,570
83.1%
76.3
Car, truck, or van - carpooled
1,696
8.0%
9.0
Public transportation (excluding taxicab)
136
0.6%
5.1
Walked
930
4.4%
2.7
Other means
270
1.3%
1.8
Worked at home
536
2.5%
5.0
Mean travel time to work (Minutes)
17.8
26.6
Knox County, IL Vehicles per Household
Vehicles per Household
Number
Percent
National Avg
None
2,029
9.6%
8.7
1 vehicles
8,036
38.0%
33.2
2 vehicles
7,811
36.9%
37.1
3 or more
3,270
15.5%
21.0
Knox County, IL Housing Occupancy
Housing Occupancy
Number
Percent
National Avg
Total Housing Units
Occupied Housing Units
21,146
88.4%
87.6
Owner Occupied
13,829
65.4%
63.1
Renter Occupied
7,317
34.6%
36.9
Vacant Housing Units
2,762
11.6%
12.4
Homeowner Vacancy Rate
2
0.0%
0.0
Rental Vacancy Rate
5
0.0%
0.0
Average household size of owner-occupied unit
2.4
0.0%
2.7
Average household size of renter-occupied unit
2.1
0.0%
2.5
Knox County, IL Rooms per Residence
Rooms per Residence
Number
Percent
National Avg
Total Housing Units
23,908
1 room
728
3.0%
2.4
2 rooms
239
1.0%
2.7
3 rooms
1,796
7.5%
9.1
4 rooms
3,766
15.8%
16.5
5 rooms
5,272
22.1%
19.8
6 rooms
4,786
20.0%
17.8
7 rooms
2,787
11.7%
12.0
8 rooms
2,090
8.7%
8.6
9 rooms or more
2,444
10.2%
11.1
Median Rooms
6
0.0
Knox County, IL Structure Type Statistics
Structure Type
Number
Percent
National Avg
Total Housing Units
23,908
1-unit, detached
18,107
75.7%
61.5
1-unit, attached
380
1.6%
5.9
2-units
808
3.4%
3.6
3 or 4 units
764
3.2%
4.4
5 to 9 units
952
4.0%
4.8
10 to 19 units
564
2.4%
4.4
20 or more units
1,360
5.7%
9.0
Mobile home
973
4.1%
6.2
Boat, RV, van, etc.
0
0.0%
0.1
Knox County, IL Housing Age Statistics
Housing Age
Number
Percent
National Avg
1939 or earlier
8,408
35.2%
12.8%
1940 to 1949
1,755
7.3%
5.0%
1950 to 1959
3,210
13.4%
10.4%
1960 to 1969
2,619
11.0%
10.7%
1970 to 1979
3,763
15.7%
15.3%
1980 to 1989
1,320
5.5%
13.5%
1990 to 1999
1,326
5.5%
13.9%
2000 to 2009
1,256
5.3%
14.2%
2010 to 2013
226
0.9%
2.8%
2014 or later
25
0.1%
1.4%
Knox County, IL Household Heating
Heating Fuel Type
Number
Percent
National Avg
Utility Gas
14,670
69.4%
48.1
Bottled, tank, or LP gas
1,983
9.4%
4.7
Electricity
3,964
18.7%
38.7
Fuel oil, kerosene, etc.
18
0.1%
4.8
Coal or coke
0
0.0%
0.1
Wood
279
1.3%
1.9
Solar energy
0
0.0%
0.1
Other fuel
187
0.9%
0.5
No fuel used
45
0.2%
1.1
Knox County, IL Mortgage Statistics
Mortgage Payments
Number
Percent
National Avg
Housing units with a mortgage
6,924
47295100.0
$2,500 to $2,999
56
0.8%
7.0%
$3,000 or more
98
1.4%
10.3%
$2,000 to $2,499
276
4.0%
11.8%
Less than $500
371
5.4%
1.6%
$1,500 to $1,999
599
8.7%
20.1%
$1,000 to $1,499
1,798
26.0%
28.8%
$500 to $999
3,726
53.8%
20.4%
Mortgage Payment as % of Income
Number
Percent
National Avg
Less than 20.0%
3,711
54.0%
45.4%
20.0% to 24.9%
1,185
17.3%
15.7%
25.0% to 29.9%
637
9.3%
10.6%
30.0% to 34.9%
461
6.7%
7.0%
35.0% or more
873
12.7%
21.3%
Not Computed
57
0.0%
0.0%
Knox County, IL Rent Statistics
Rent Payment Amount
Number
Percent
National Avg
Occupied Units Paying Rent
6,780
41,631,300
$2,000 to $2,499
0
0.0%
4.4%
$2,500 to $2,999
14
0.2%
1.9%
$3,000 or more
30
0.4%
1.8%
$1,500 to $1,999
95
1.4%
11.9%
$1,000 to $1,499
383
5.6%
28.3%
Less than $500
2,147
31.7%
10.7%
$500 to $999
4,111
60.6%
41.0%
No Cash Rent
537
0.0%
2,206,240
Median (Dollars)
593
0.0%
981
Rent Payment as % of Income
Number
Percent
National Avg
Less than 15.0%
969
14.7%
13.1%
15.0% to 19.9%
831
12.6%
12.9%
20.0% to 24.9%
1,021
15.5%
12.8%
25.0% to 29.9%
790
12.0%
11.5%
30.0% to 34.9%
671
10.2%
9.0%
35.0% or more
2,292
34.9%
40.7%
Not Computed
743
0.0%
0.0%
Knox County, IL Property Value
Property Type
Number
Percent
National Avg
Specified Owner-Occupied Units
13,829
75,022,600
Less then $50,000
2,854
20.6%
7.3%
$50,000 to $99,999
5,922
42.8%
7.3%
$100,000 to $149,000
2,327
16.8%
14.1%
$150,000 to $199,000
1,127
8.1%
14.5%
$200,000 to $299,999
908
6.6%
19.2%
$300,000 to $499,999
502
3.6%
18.2%
$500,000 to $999,999
159
1.1%
10.5%
$1,000,000 or more
30
0.2%
3.1%
Median (Dollars)
80,100
205,000
