IL Demographic Statistics

Updated June 5, 2020 | Infoplease Staff

Number

Percent

Total population12,419,293100.0
SEX AND AGE
Male6,080,33649.0
Female6,338,95751.0
Under 5 years876,5497.1
5 to 9 years929,8587.5
10 to 14 years905,0977.3
15 to 19 years894,0027.2
20 to 24 years850,8436.9
25 to 34 years1,811,67414.6
35 to 44 years1,983,87016.0
45 to 54 years1,626,74213.1
55 to 59 years577,7474.7
60 to 64 years462,8863.7
65 to 74 years772,2476.2
75 to 84 years535,7474.3
85 years and over192,0311.5
Median age (years)34.7(X)
18 years and over9,173,84273.9
Male
4,417,90435.6
Female
4,755,93838.3
21 years and over8,634,45569.5
62 years and over1,767,52514.2
65 years and over1,500,02512.1
Male
601,6114.8
Female
898,4147.2
RACE
One race12,184,27798.1
White
9,125,47173.5
Black or African American
1,876,87515.1
American Indian and Alaska Native
31,0060.2
Asian
423,6033.4
Asian Indian
124,7231.0
Chinese
76,7250.6
Filipino
86,2980.7
Japanese
20,3790.2
Korean
51,4530.4
Vietnamese
19,1010.2

Other Asian 1

44,9240.4
Native Hawaiian and Other Pacific Islander
4,6100.0
Native Hawaiian
1,0030.0
Guamanian or Chamorro
9880.0
Samoan
1,0620.0

Other Pacific Islander 2

1,5570.0
Some other race
722,7125.8
Two or more races235,0161.9

Race alone or in combination with one or more other races 3

White9,322,83175.1
Black or African American1,937,67115.6
American Indian and Alaska Native73,1610.6
Asian473,6493.8
Native Hawaiian and Other Pacific Islander11,8480.1
Some other race847,3696.8
HISPANIC OR LATINO AND RACE
Total population12,419,293100.0
Hispanic or Latino (of any race)1,530,26212.3
Mexican
1,144,3909.2
Puerto Rican
157,8511.3
Cuban
18,4380.1
Other Hispanic or Latino
209,5831.7
Not Hispanic or Latino10,889,03187.7
White alone
8,424,14067.8
RELATIONSHIP
Total population12,419,293100.0
In households12,097,51297.4
Householder
4,591,77937.0
Spouse
2,353,89219.0
Child
3,814,98830.7
Own child under 18 years
2,884,03623.2
Other relatives
758,5636.1
Under 18 years
288,8272.3
Nonrelatives
578,2904.7
Unmarried partner
219,5461.8
In group quarters321,7812.6
Institutionalized population
174,7271.4
Noninstitutionalized population
147,0541.2
HOUSEHOLDS BY TYPE
Total households4,591,779100.0
Family households (families)3,105,51367.6
With own children under 18 years
1,514,56133.0
Married-couple family
2,353,89251.3
With own children under 18 years
1,113,58224.3
Female householder, no husband present
563,71812.3
With own children under 18 years
315,9576.9
Nonfamily households1,486,26632.4
Householder living alone
1,229,80726.8
Householder 65 years and over
438,6939.6
Households with individuals under 18 years1,663,87836.2
Households with individuals 65 years and over1,064,91923.2
Average household size2.63(X)
Average family size3.23(X)
HOUSING OCCUPANCY
Total housing units4,885,615100.0
Occupied housing units4,591,77994.0
Vacant housing units293,8366.0
For seasonal, recreational, or occasional use
29,7120.6
Homeowner vacancy rate (percent)1.5(X)
Rental vacancy rate (percent)6.2(X)
HOUSING TENURE
Occupied housing units4,591,779100.0
Owner-occupied housing units3,088,88467.3
Renter-occupied housing units1,502,89532.7
Average household size of owner-occupied unit2.76(X)
Average household size of renter-occupied unit2.37(X)
(X) Not applicable
1 Other Asian alone, or two or more Asian categories.
2 Other Pacific Islander alone, or two or more Native Hawaiian and Other Pacific Islander categories.
3 In combination with one or more other races listed. The six numbers may add to more than the total population and the six percentages may add to more than 100 percent because individuals may report more than one race.
Source: U.S. Census Bureau, Census 2000 Summary File 1, Matrices P1, P3, P4, P8, P9, P12, P13, P,17, P18, P19, P20, P23, P27, P28, P33, PCT5, PCT8, PCT11, PCT15, H1, H3, H4, H5, H11, and H12.

Sources +

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