United States › Illinois › Stephenson County COUNTY · 2010 ACS
Stephenson County Illinois · 47,711 residents · 564 sq mi
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The short version
Stephenson County is a county of 47,711 people in Illinois. At a median age of 43.1, this is an older place than the country as a whole. Median home value sits at $103,300. 17% of adults hold a bachelor's degree or higher. The foreign-born share is 2%. That trails the Illinois median by roughly 22%.
At a glance
Lower income
below the US median
US median: $52,703
Older
median age 43.1
US median: 37.2
Less educated
17% hold a bachelor's degree
US average: 28%
Stable housing
home values roughly flat, inflation adjusted
US median home: $225,659
Section 01
Population & growth from 38.5 in 2000
US average: 37.2
Population, 1990 – 2024
43K 45K 46K 48K 50K 1990 2000 2010 2020 2024 Stephenson County Age distribution, 2010
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Section 02
Income & economy $43,304
−15%inflation adjusted, since 2000
from $40,366 in 2000
US average: $52,703
from $19,794 in 2000
US average: $27,286
Households earning $100K+
from 24.1% in 2009
US average: 33.3%
from 9.0% in 2000
US average: 13.8%
Workforce by industry, 2010
Public administration 5.4%
Agriculture, forestry, fishing 4.1%
Professional, scientific, technical 3.7%
Transportation & warehousing 2%
Arts, entertainment, food 1.4%
Education & health services 0.3%
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$103,300
+1%inflation adjusted, since 2000
from $80,400 in 2000
US average: $225,659
$573
+5%inflation adjusted, since 2000
from $433 in 2000
US average: $853
from 74.8% in 2000
28.1% rent
from 11.9% in 2009
US average: 12.1%
from 2.35 people in 2009
US average: 2.60
from 24.1% in 2009
US average: 30.9%
from 44.6% in 2009
US average: 46.8%
from 2.4 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 88.6%(43,404)
Hispanic / Latino 1.5%(747)
2010
White, non-Hispanic 85.1%(40,612)
Hispanic / Latino 2.9%(1,406)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 28 more ancestry groups with data from 15.6% in 2000
US average: 27.9%
High school or higher
from 84.1% in 2000
US average: 84.9%
from 5.0% in 2000
US average: 10.2%
Section 06
Commute & transportation from 13.8 min in 2000
US average: 25.2
from 78.2% in 2009
US average: 76.2%
from 11.0% in 2009
US average: 10.4%
from 1.2% in 2009
US average: 4.7%
from 4.7% in 2009
US average: 4.1%
from 3.8% in 2009
US average: 2.8%
from 0.5% in 2009
US average: 0.5%
from 8.0% in 2009
US average: 8.7%
Section 07
Work & employment from 11.4% in 2009
US average: 12.9%
from 28.7% in 2009
US average: 35.2%
Section 08
People & community from 1.7% in 2009
US average: 12.8%
from 12.7% in 2009
US average: 9.9%
Marital status (2024)
Men 15+
Never married 32.7%(5,697)
Women 15+
Never married 27.3%(5,108)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 10.7% in 2013
US average: 8.4%
from 47.6% in 2020
US average: 54.8%
Direct-purchase
from 16.6% in 2020
US average: 13.8%
from 24.6% in 2020
US average: 18.4%
from 24.9% in 2020
US average: 20.9%
VA health care
from 2.7% in 2020
US average: 2.2%
Any private
from 62.0% in 2020
US average: 67.1%
Any public
from 47.4% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 11.6%(297)
Gulf War (1990s) 21.7%(557)
Share of the 2,567 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Stephenson County Head to head
Compare Stephenson County to nearby counties STEPHENSON COUNTY VS
Green County
Income $82,852 +91%
Home value $250,200 +142%
Population 37,227 −14%
SEE FULL COMPARISON →
STEPHENSON COUNTY VS
Carroll County
Income $60,758 +40%
Home value $114,500 +11%
Population 15,419 −64%
SEE FULL COMPARISON →
STEPHENSON COUNTY VS
Winnebago County
Income $65,837 +52%
Home value $164,500 +59%
Population 283,674 +556%
SEE FULL COMPARISON →
STEPHENSON COUNTY VS
Ogle County
Income $82,132 +90%
Home value $189,200 +83%
Population 51,399 +19%
SEE FULL COMPARISON →
Frequently asked
How many people live in Stephenson County, Illinois? Stephenson County, Illinois has about 47,711 residents according to the 2010 American Community Survey.
What is the median household income in Stephenson County, Illinois? The typical household in Stephenson County, Illinois earns about $43,304 a year. Half of households make more than that, and half make less.
Is Stephenson County, Illinois expensive? In Stephenson County, Illinois, the median home is worth about $103,300, and the typical rent is about $573 a month.
How educated are people in Stephenson County, Illinois? About 17.2% of adults age 25 and over in Stephenson County, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Stephenson County, Illinois? About 14.8% of people in Stephenson County, Illinois live below the federal poverty line.
Has Stephenson County, Illinois grown since 1990? Yes, Stephenson County, Illinois has shrunk since 1990. The population has lost about 341 residents, a change of about -1 percent over that period.
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