Stephenson County, Illinois Population 2018

Stephenson County, Illinois's estimated population is 45,054 with a growth rate of -2.66% 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
201745,054-1,229-2.66%
201646,2837431.63%
201645,540-130-0.28%
201545,670-594-1.28%
201446,264-403-0.86%
201346,667-217-0.46%
201246,884-432-0.91%
201147,316-290-0.61%
201047,606-446-0.93%
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%

Stephenson County, Illinois Population Growth

Population Data via

Population by Race

Race Population
White39,890
Black or African American4,310
Two or More Races1,390
Asian388
Some Other Race280
American Indian and Alaska Native25

Race Data via US Census (2016 ACS 5-Year Survey)

Stephenson County, Illinois Population Pyramid 2018

0%2%4%6%8% Male Population0%2%4%6%8% Female Population80757065605550454035302520151050

Data via US Census (2016 ACS 5-Year Survey): Table S0101

Stephenson County, Illinois Median Age

44.6


Total

43.9


Male

45.6


Female

Stephenson County, Illinois Adults

There are 36,240 adults, (9,534 of which are seniors) in Stephenson County, Illinois.

Stephenson County, Illinois Age Dependency

73.2

Age Dependency Ratio

35.6

Old Age Dependency Ratio

37.6

Child Dependency Ratio

Stephenson County, Illinois Sex Ratio

Female

23,900

51.64%

Male

22,383

48.36%

Stephenson County, Illinois Households and Families

Stephenson County, Illinois Renter vs Owner Occupied by Household Type

Stephenson County, Illinois Household Types

Type Owner Renter
Married87.9%12.1%
All69.6%30.4%
Male57.4%42.6%
Non Family56.1%43.9%
Female42.9%57.1%

69.6%

Rate of Home Ownership

Stephenson County, Illinois Households by Type

Type Count Average Size Owned
All19,5732.3269.6
Married9,2322.8487.9
Non Family7,0561.1756.1
Female2,3333.3442.9
Male9523.3557.4

2.88

Average Family Size

2.32

Average Household Size

7.3%

Unmarried (Opposite Sex)

0.3%

Unmarried (Same Sex)

Stephenson County, Illinois Households

Stephenson County, Illinois Education

Stephenson County, Illinois Educational Attainment by Sex (over 25)

Education Attained Count Percentage
Less Than 9th Grade8842.71%
9th to 12th Grade2,1396.57%
High School Graduate11,45935.18%
Some College8,95927.50%
Associates Degree3,31610.18%
Bachelors Degree3,75211.52%
Graduate Degree2,0676.35%

Stephenson County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White28,80226,5705,387
Black2,5591,972192
Hispanic72257957
Multiple Races36432447
Asian214183131
Other Race16710436
Native American2517

The highest rate of high school graduation is among white people with a rate of 92.25%.

The highest rate of bachelors degrees is among white people with a rate of 61.21%.

Stephenson County, Illinois Earnings by Educational Attainment

Name Average Male Female
Overall$30,731$37,041$25,919
Less Than High School$16,875$19,893$14,000
High School Grad$27,055$32,844$21,172
Some College$30,041$38,874$25,341
Bachelors Degree$46,088$51,921$38,995
Graduate Degree$56,942$68,594$52,200

$30,731

Average Earnings

$37,041

Average Male

$25,919

Average Female

Stephenson County, Illinois Language

Stephenson County, Illinois Language by Age

Stephenson County, Illinois Language

96.68% of Stephenson County, Illinois residents speak only English, while 3.32% speak other languages. The largest non-English language is Spanish, which is spoken by 2.17% of the population.

Stephenson County, Illinois Poverty

Stephenson County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
White38,0614,78512.57%
Black4,2241,50835.70%
Multiple1,37048935.69%
Hispanic1,55948230.92%
Other2634015.21%
Asian38882.06%

15.86%

Overall Poverty Rate

14.49%

Male Poverty Rate

17.15%

Female Poverty Rate

Poverty in Stephenson County, Illinois

The race most likely to be in poverty in Stephenson County, Illinois is Black, with 35.70% below the poverty level.

The race least likely to be in poverty in Stephenson County, Illinois is Asian, with 2.06% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.09%. Among those working part-time, it was 16.83%, and for those that did not work, the poverty rate was 22.94%.

Stephenson County, Illinois Poverty Rate by Education

Name Poverty
Less Than High School26.56%
High School15.44%
Some College9.63%
Bachelors or Greater3.63%

Stephenson County, Illinois Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed50.49%
Male Unemployed38.54%
Female Employed9.16%
Male Employed5.84%

Stephenson County, Illinois Income

Stephenson County, Illinois Income by Household Type

Name Median Mean
Households$45,624$56,796
Families$56,673$68,147
Married Families$68,886$78,085
Non Families$24,651$34,751

Stephenson County, Illinois Marital Status

Stephenson County, Illinois Marital Status

Marriage Rates

51.7%

Overall Marriage Rate

54.1%

Male Marriage Rate

49.5%

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 55To64, while the female age group most likely to be married is 55To64.

Stephenson County, Illinois Marital Status by Race

Stephenson County, Illinois Veterans

Stephenson County, Illinois Veterans by War

3,492

Number of Veterans

3,191

Male Veterans

301

Female Veterans

Name Veterans
Vietnam1,357
Korea502
First Gulf War320
Second Gulf War294
World War II249

Stephenson County, Illinois Veterans by Age

Name Veterans
75+1,124
65 to 74863
55 to 64778
35 to 54538
18 to 34189

Stephenson County, Illinois Veterans by Race

Name Veterans % of Total
White3,26910.17%
Black1615.23%
2 or More275.37%
Indian1560.00%
Asian124.63%
Hispanic91.00%
Other83.88%

Stephenson County, Illinois Veterans by Education

11.61%

Veteran Poverty Rate

33.69%

Veteran Disability Rate

Stephenson County, Illinois Employment Status

Stephenson County, Illinois Employment by Age

63.3%

Labor Force Participation

57.8%

Employment Rate

8.5%

Unemployment Rate

Stephenson County, Illinois Employment by Race

Stephenson County, Illinois Employment by Education

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%
Data Sources
  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