Jefferson County, Illinois Population 2019

Jefferson County, Illinois's estimated population is 38,111 with a growth rate of -0.36% in the past year according to the most recent United States census data. Jefferson County, Illinois is the 36th largest county in Illinois.

Year Population Growth Growth Rate
201837,820-291-0.76%
201738,111-136-0.36%
201638,247-43-0.11%
201538,290-87-0.23%
201438,377-270-0.70%
201338,647-11-0.03%
201238,658-91-0.23%
201138,749-10-0.03%
201038,7591,7394.70%
199037,0204681.28%
198036,5525,10616.24%
197031,446-869-2.69%
196032,315-3,577-9.97%
195035,8921,5174.41%
194034,3753,34110.77%
193031,0342,5548.97%
192028,480-631-2.17%
191029,1119783.48%
190028,1335,54324.54%
189022,5901,9049.20%
188020,6862,82215.80%
187017,8644,89937.79%
186012,9654,85659.88%
18508,1092,34740.73%
18405,7623,207125.52%
18302,5551,864269.75%
18206910.00%

Jefferson County, Illinois Population Growth

Population Data via

Population by Race

Race Population
White33,597
Black or African American3,277
Two or More Races903
Asian439
Some Other Race106
American Indian and Alaska Native36

Jefferson County, Illinois Population Pyramid 2019

Jefferson County, Illinois Median Age

40.9


Total

39.7


Male

42.6


Female

Jefferson County, Illinois Adults

There are 29,893 adults, (6,845 of whom are seniors) in Jefferson County, Illinois.

Jefferson County, Illinois Age Dependency

66.4

Age Dependency Ratio

29.7

Old Age Dependency Ratio

36.7

Child Dependency Ratio

Jefferson County, Illinois Sex Ratio

Female

18,667

48.67%

Male

19,691

51.33%

Jefferson County, Illinois Households and Families

Jefferson County, Illinois Renter vs Owner Occupied by Household Type

Jefferson County, Illinois Household Types

Type Owner Renter
Married92%8%
Male78.8%21.2%
All73.3%26.7%
Non Family57.5%42.5%
Female44.1%55.9%

73.3%

Rate of Home Ownership

Type Count Average Size Owned
All15,2442.3573.3
Married7,2243.0192
Non Family5,4771.1457.5
Female1,7703.0644.1
Male7733.0678.8

2.93

Average Family Size

2.35

Average Household Size

6.2%

Unmarried (Opposite Sex)

0.1%

Unmarried (Same Sex)

Jefferson County, Illinois Education

Education Attained Count Percentage
Less Than 9th Grade1,2594.70%
9th to 12th Grade2,6719.98%
High School Graduate8,43331.51%
Some College6,88325.72%
Associates Degree3,19611.94%
Bachelors Degree2,5789.63%
Graduate Degree1,7406.50%

Jefferson County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White23,71020,5413,838
Black2,0211,456187
Hispanic47433720
Asian302277215
Multiple Races25120344
Other Race473411
Native American303014

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 71.19%.

Name Average Male Female
Overall$32,903$42,289$25,725
Less Than High School$16,185$23,365$13,803
High School Grad$25,077$31,395$20,414
Some College$35,522$46,184$25,895
Bachelors Degree$43,556$59,113$35,641
Graduate Degree$59,857$79,375$52,333

$32,903

Average Earnings

$42,289

Average Male

$25,725

Average Female

Jefferson County, Illinois Language

Jefferson County, Illinois Language by Age

Jefferson County, Illinois Language

96.20% of Jefferson County, Illinois residents speak only English, while 3.80% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.90% of the population.

Jefferson County, Illinois Poverty

Jefferson County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
White31,5125,38117.08%
Black2,28979134.56%
Multiple88337041.90%
Hispanic63127343.26%
Other941718.09%
Native28621.43%

18.88%

Overall Poverty Rate

16.50%

Male Poverty Rate

21.13%

Female Poverty Rate

Poverty in Jefferson County, Illinois

The race most likely to be in poverty in Jefferson County, Illinois is Hispanic, with 43.26% below the poverty level.

The race least likely to be in poverty in Jefferson County, Illinois is White, with 17.08% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.18%. Among those working part-time, it was 23.79%, and for those that did not work, the poverty rate was 22.26%.

Name Poverty
Less Than High School30.78%
High School16.75%
Some College12.33%
Bachelors or Greater4.01%
Name Poverty
Female Unemployed48.61%
Male Unemployed27.98%
Female Employed11.84%
Male Employed7.22%

Jefferson County, Illinois Income

Jefferson County, Illinois Income by Household Type

Name Median Mean
Households$46,109$61,838
Families$58,818$75,158
Married Families$71,795$87,799
Non Families$24,599$35,494

Jefferson County, Illinois Marital Status

Jefferson County, Illinois Marital Status

Marriage Rates

49.1%

Overall Marriage Rate

48.2%

Male Marriage Rate

50.0%

Female Marriage Rate

Jefferson County, Illinois Married by Age and Sex

Jefferson County, Illinois Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Jefferson County, Illinois Marital Status by Race

Jefferson County, Illinois Veterans

2,967

Number of Veterans

2,749

Male Veterans

218

Female Veterans

War Veterans
Vietnam1,188
First Gulf War595
Second Gulf War312
Korea286
World War II139

Jefferson County, Illinois Veterans by Race

Name Veterans % of Total
White2,81110.55%
Black1064.27%
2 or More237.12%
Hispanic192.91%
Asian185.73%
Indian618.75%
Other33.45%

Jefferson County, Illinois Veterans by Education

7.75%

Veteran Poverty Rate

39.99%

Veteran Disability Rate

Jefferson County, Illinois Employment Status

56.7%

Labor Force Participation

51.9%

Employment Rate

8.5%

Unemployment Rate

Population of Cities in Jefferson County, Illinois

City 2010 Census 2016 Estimated Growth Growth Rate
Mount Vernon1528615137-149-0.97%
Centralia 1303412572-462-3.54%
Ina23382335-3-0.13%
Woodlawn69669600.00%
Bluford688673-15-2.18%
Dix45945900.00%
Waltonville43443400.00%
Bonnie397384-13-3.27%
Belle Rive36136100.00%
Nason23623600.00%
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990