Stephenson County, Illinois Population 2020

Stephenson County, Illinois's estimated population is 44,981 with a growth rate of -1.13% in the past year according to the most recent United States census data. Stephenson County, Illinois is the 33rd largest county in Illinois.

Year Population Growth Growth Rate
201844,753-228-0.51%
201744,981-516-1.13%
201645,497-171-0.37%
201545,668-599-1.29%
201446,267-405-0.87%
201346,672-214-0.46%
201246,886-433-0.92%
201147,319-288-0.60%
201047,607-445-0.93%
199048,052-1,484-3.00%
198049,5366751.38%
197048,8612,6545.74%
196046,2074,61211.09%
195041,5959492.33%
194040,6465821.45%
193040,0642,3216.15%
192037,7439222.50%
191036,8211,8885.40%
190034,9333,59511.47%
189031,338-625-1.96%
188031,9631,3554.43%
187030,6085,49621.89%
186025,11213,446115.26%
185011,6668,866316.64%
18402,8000.00%

How Many People Live in Stephenson County, Illinois?

44,981

Population by Race

Race Population Percentage
White39,05985.97%
Black or African American4,4699.84%
Two or More Races1,2842.83%
Asian3660.81%
Some Other Race2030.45%
American Indian and Alaska Native520.11%

Stephenson County, Illinois Population Pyramid 2020

Stephenson County, Illinois Median Age

45.1


Total

44.2


Male

46.6


Female

Stephenson County, Illinois Adults

There are 35,609 adults, (9,737 of whom are seniors) in Stephenson County, Illinois.

Stephenson County, Illinois Age Dependency

75.6

Age Dependency Ratio

37.6

Old Age Dependency Ratio

38

Child Dependency Ratio

Stephenson County, Illinois Sex Ratio

Female

23,447

51.61%

Male

21,986

48.39%

Stephenson County, Illinois Households and Families

Stephenson County, Illinois Renter vs Owner Occupied by Household Type

Stephenson County, Illinois Household Types

Type Owner Renter
Married90.6%9.4%
All68.7%31.3%
Male55.9%44.1%
Non Family51.4%48.6%
Female37.8%62.2%

68.7%

Rate of Home Ownership

Type Count Average Size Owned
All19,6092.2868.7
Married9,3512.8290.6
Non Family6,8601.1451.4
Female2,3683.0837.8
Male1,0303.0255.9

2.8

Average Family Size

2.28

Average Household Size

6.5%

Unmarried (Opposite Sex)

0.1%

Unmarried (Same Sex)

Stephenson County, Illinois Education

Education Attained Count Percentage
Less Than 9th Grade6982.18%
9th to 12th Grade1,5714.91%
High School Graduate11,50835.98%
Some College8,67627.13%
Associates Degree3,36810.53%
Bachelors Degree4,16913.04%
Graduate Degree1,9906.22%

Stephenson County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White28,23726,6225,699
Black2,4972,085179
Hispanic731548106
Multiple Races29329344
Asian233185121
Other Race1145123
Native American1818

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 51.93%.

Name Average Male Female
Overall$32,229$41,930$26,070
Less Than High School$19,745$28,258$15,259
High School Grad$27,500$38,509$19,915
Some College$31,286$41,644$26,078
Bachelors Degree$42,989$52,959$37,546
Graduate Degree$66,520$70,685$61,510

$32,229

Average Earnings

$41,930

Average Male

$26,070

Average Female

Stephenson County, Illinois Language

Stephenson County, Illinois Language by Age

Stephenson County, Illinois Language

96.55% of Stephenson County, Illinois residents speak only English, while 3.45% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.22% of the population.

Stephenson County, Illinois Poverty

Stephenson County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
White36,9404,20911.39%
Black4,3861,28829.37%
Hispanic1,71349829.07%
Multiple1,24640032.10%
Asian3665615.30%
Other1992613.07%

14.44%

Overall Poverty Rate

13.70%

Male Poverty Rate

15.13%

Female Poverty Rate

Poverty in Stephenson County, Illinois

The race most likely to be in poverty in Stephenson County, Illinois is Multiple, with 32.10% below the poverty level.

The race least likely to be in poverty in Stephenson County, Illinois is White, with 11.39% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.07%. Among those working part-time, it was 16.79%, and for those that did not work, the poverty rate was 20.78%.

Name Poverty
Less Than High School25.21%
High School14.42%
Some College7.83%
Bachelors or Greater4.09%

Stephenson County, Illinois Income

Stephenson County, Illinois Income by Household Type

Name Median Mean
Households$48,016$62,446
Families$60,944$75,172
Married Families$72,672-
Non Families$24,908$36,383

Stephenson County, Illinois Marital Status

Stephenson County, Illinois Marital Status

Marriage Rates

52.4%

Overall Marriage Rate

55.2%

Male Marriage Rate

49.9%

Female Marriage Rate

Stephenson County, Illinois Married by Age and Sex

Stephenson County, Illinois Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.

Stephenson County, Illinois Marital Status by Race

Stephenson County, Illinois Veterans

3,268

Number of Veterans

2,932

Male Veterans

336

Female Veterans

War Veterans
Vietnam1,252
Korea507
First Gulf War428
Second Gulf War303
World War II153

Stephenson County, Illinois Veterans by Race

Name Veterans % of Total
White3,0459.64%
Black2016.47%
Other106.49%
Hispanic90.90%
Asian93.49%
Indian316.67%

Stephenson County, Illinois Veterans by Education

10.21%

Veteran Poverty Rate

33.74%

Veteran Disability Rate

Stephenson County, Illinois Employment Status

62.3%

Labor Force Participation

57.7%

Employment Rate

7.1%

Unemployment Rate

Stephenson County, Illinois Place of Birth

Origin of Non Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

72.29%

Born in Illinois

97.75%

Native Born

2.25%

Foreign Born

1.10%

Non Citizen

Place of Birth

97.75% of Stephenson County, Illinois residents were born in the United States, with 72.29% having been born in Illinois. 1.10% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Population of Cities in Stephenson County, Illinois

City 2010 Census 2016 Estimated Growth Growth Rate
Freeport2563724392-1245-4.86%
Lena29122800-112-3.85%
Pearl City838802-36-4.30%
Orangeville793753-40-5.04%
Cedarville741716-25-3.37%
Davis677639-38-5.61%
Dakota506475-31-6.13%
German Valley463449-14-3.02%
Winslow338329-9-2.66%
Rock City315307-8-2.54%
Ridott164158-6-3.66%
  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