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Jefferson County Population and Races

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As of 2010-2014, the total population of Jefferson County is 38,716, which is 3.32% less than it was in 2000. The population growth rate is much lower than the state average rate of 3.62% and is much lower than the national average rate of 11.61%. The Jefferson County population density is 66.32 people per square mile, which is much lower than the state average density of 222.21 people per square mile and is lower than the national average density of 82.73 people per square mile. The most prevalent race in Jefferson County is white, which represent 87.73% of the total population. The average Jefferson County education level is lower than the state average and is lower than the national average.

Topics:Population GrowthPopulation DensityPopulation by RacesPopulation by First AncestryPopulation by GenderPopulation by AgeEducationSchool EnrollmentHousehold and FamilyMarital StatusPlace of Birth and CitizenshipLanguage

Population in 2010-2014: 38,716. #37

Population Growth Since 2000, #64

Jefferson County

Population Density, #38

Jefferson County
66.32 per square mile
222.21 per square mile
82.73 per square mile

Population by Races

White:33,966 (87.73%, #77)
Black:2,959 (7.64%, #26)
Hispanic:857 (2.21%, #51)
Asian:383 (0.99%, #26)
Native (American Indian, Alaska Native, Hawaiian Native, etc.):76 (0.20%, #48)
One Race, Other:210 (0.54%, see rank)
Two or More Races:1,122 (2.90%, see rank)

*Based on 2010-2014 data. View historical race data.

Population by First Ancestry

29,618 (76.50%) out of the total population of 38,716 reported first ancestry.

 Jefferson County% of the Total PopulationIllinoisU.S.
Arab250.06%, see rank0.71%0.56%
Czech790.20%, see rank0.92%0.47%
Danish130.03%, see rank0.38%0.42%
Dutch9412.43%, see rank1.37%1.40%
English4,66312.04%, see rank5.90%8.02%
French1,1913.08%, see rank2.13%3.34%
German9,09423.49%, see rank19.07%15.03%
Greek1120.29%, see rank0.76%0.41%
Hungarian690.18%, see rank0.40%0.46%
Irish5,28413.65%, see rank12.00%10.80%
Italian7251.87%, see rank6.14%5.52%
Norwegian1150.30%, see rank1.25%1.42%
Polish1,3193.41%, see rank7.22%3.01%
Portuguese30.01%, see rank0.08%0.44%
Russian620.16%, see rank0.97%0.92%
Scotch-Irish3330.86%, see rank0.59%0.99%
Scottish6851.77%, see rank1.16%1.72%
Subsaharan African1490.38%, see rank0.64%0.95%
Swedish3971.03%, see rank2.13%1.27%
Swiss390.10%, see rank0.27%0.30%
Ukrainian760.20%, see rank0.40%0.31%
American4,12610.66%, see rank5.00%7.12%
Welsh2120.55%, see rank0.37%0.57%

*Based on 2010-2014 data. View historical first ancestry data.

Population by Gender

Male: 19,898 (51.39%, see rank)
Females: 18,818 (48.61%, see rank)

Jefferson County
Male: 51.39%
Female: 48.61%
Male: 49.06%
Female: 50.94%
Male: 49.19%
Female: 50.81%

*Based on 2010-2014 data. View historical gender data.

Population by Age

Median Age (see rank)
Jefferson County
40.90 years old
37.00 years old
37.40 years old

Median Age, Male (see rank)
Jefferson County
39.20 years old
35.70 years old
36.10 years old

Median Age, Female (see rank)
Jefferson County
43.10 years old
38.40 years old
38.80 years old

 Jefferson County% of the Total PopulationIllinoisU.S.
Under 5 years2,4286.27%, see rank6.30%6.36%
5 to 9 years2,2875.91%, see rank6.58%6.51%
10 to 14 years2,3336.03%, see rank6.71%6.59%
15 to 19 years2,3466.06%, see rank6.94%6.85%
20 to 24 years2,3696.12%, see rank6.95%7.13%
25 to 34 years4,82512.46%, see rank13.84%13.47%
35 to 44 years4,75512.28%, see rank13.20%12.96%
45 to 54 years5,62414.53%, see rank14.17%14.09%
55 to 64 years5,22513.50%, see rank12.13%12.29%
65 to 74 years3,5189.09%, see rank7.18%7.64%
75 to 84 2,1205.48%, see rank4.10%4.25%
85 years and over8862.29%, see rank1.90%1.85%

*Based on 2010-2014 data. View historical age data.

Education for the 25 Years and Over

 Jefferson CountyIllinoisU.S.
Total 25 Years and Over Population26,953, 100%8,560,555209,056,129
Less Than High School3,748, 13.91%, see rank12.41%13.67%
High School Graduate9,104, 33.78%, see rank27.01%27.95%
Some College or Associate Degree9,811, 36.40%, see rank28.70%29.09%
Bachelor Degree2,733, 10.14%, see rank19.72%18.27%
Master, Doctorate, or Professional Degree1,557, 5.78%, see rank12.17%11.01%
USA.com Education Index#12.98, see rank13.7213.54
# Higher USA.com Education Index means more educated population.

*Based on 2010-2014 data. View historical education level data.

School Enrollment

 Jefferson County IllinoisU.S.
Total PublicPrivatePublicPrivatePublicPrivate
Nursery School, Preschool, Kindergarten1,33690.27%9.73%71.39%28.61%71.30%28.70%
Elementary School (Grades 1-8)3,52589.16%, see rank10.84%, see rank88.78%11.22%89.86%10.14%
High School (Grades 9-12)1,86393.29%, see rank6.71%, see rank90.75%9.25%90.60%9.40%
College1,94192.43%, see rank7.57%, see rank73.17%26.83%78.37%21.63%
Graduate School22261.26%, see rank38.74%, see rank48.20%51.80%58.86%41.14%

*Based on 2010-2014 data. View historical school enrollment data.

Household and Family

 Jefferson CountyIllinoisU.S.
Total Households15,289, 100%4,778,633116,211,092
Average Household Size2.40, see rank2.632.63
1 Person Households4,716, 30.85%, see rank28.68%27.57%
2 or More Person Households10,573, 69.15%, see rank71.32%72.43%
Family Households (Families)9,853, 64.45%, see rank65.52%66.22%
Average Family Size3.08, see rank3.363.32
Married-Couple Family7,522, 49.20%, see rank48.22%48.42%
Nonfamily Households5,436, 35.55%, see rank34.48%33.78%

*Based on 2010-2014 data. View historical household and family data.

Marital Status of 15 Years and Over

 Jefferson County%IllinoisU.S.
15 Years and Over Total31,668see rank10,347,484252,974,135
Males, 15 Years and Over16,284100%, see rank5,027,649123,281,364
Never Married5,16231.70%, see rank37.51%35.77%
Married8,38251.47%, see rank51.36%52.04%
Widowed4592.82%, see rank2.51%2.57%
Divorced2,28114.01%, see rank8.63%9.62%
Females, 15 Years and Over15,384100%, see rank5,319,835129,692,771
Never Married3,26321.21%, see rank31.52%29.48%
Married8,26453.72%, see rank48.23%49.19%
Widowed1,81111.77%, see rank9.25%9.16%
Divorced2,04613.30%, see rank10.99%12.16%

*Based on 2010-2014 data. View historical marital status data.

Place of Birth and Citizenship

 Jefferson County%IllinoisU.S.
Native38,13298.49%, see rank86.11%86.93%
Born in the State of Residence30,80779.57%, see rank67.04%58.73%
Born in Different State7,24418.71%, see rank18.03%26.78%
Born in Puerto Rico, U.S. Island Areas,
or Born Abroad to American Parent(s)
810.21%, see rank1.05%1.42%
Foreign Born5841.51%, see rank13.89%13.07%
Foreign Born with U.S. Citizenship2880.74%, see rank6.52%5.99%
Foreign Born without U.S. Citizenship2960.76%, see rank7.37%7.09%
Born In Europe1020.26%, see rank2.94%1.53%
Born In Asia2810.73%, see rank3.90%3.82%
Born In Africa710.18%, see rank0.41%0.55%
Born In Oceania00.00%, see rank0.03%0.07%
Born In Latin America1260.33%, see rank6.47%6.83%
Born In Northern America40.01%, see rank0.14%0.26%

*Based on 2010-2014 data. View historical place of birth and citizenship data.

Language Spoken at Home

 Jefferson County%IllinoisU.S.
English14,73996.40%, see rank78.40%79.39%
Spanish2771.81%, see rank11.07%11.75%
Other Indo-European Languages2041.33%, see rank6.60%4.52%
Asian and Pacific Islander Languages460.30%, see rank2.95%3.36%
Other230.15%, see rank0.98%0.99%

*Based on 2010-2014 data. View historical language spoken at home data.

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