United States › Illinois › Winnebago County COUNTY · 2000 CENSUS
Winnebago County Illinois · 278,418 residents · 513 sq mi
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The short version
Winnebago County is a county of 278,418 people in Illinois. About 19% of adults have finished a four-year degree. The typical home is worth $90,900, having risen by half since 1990. The population has held roughly steady since 1990. Households earn $43,886 at the median, near the US median.
At a glance
Average income
near the US median
US median: $42,589
Mid-age
median age 35.9
US median: 35.2
Less educated
19% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01
Population & growth from 33.5 in 1990
US average: 35.2
Population, 1990 – 2024
249K 261K 274K 287K 300K 1990 2000 2010 2020 2024 Winnebago County Age distribution, 2000
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Section 02
Income & economy $43,886
+6%inflation adjusted, since 1990
from $31,336 in 1990
US average: $42,589
from $14,516 in 1990
US average: $21,522
from 10.1% in 1990
US average: 12.4%
$90,900
+15%inflation adjusted, since 1990
from $59,900 in 1990
US average: $120,530
$514
+3%inflation adjusted, since 1990
from $377 in 1990
US average: $602
from 68.0% in 1990
30.0% rent
Section 04
Race & ethnicity 1990
White, non-Hispanic 87.9%(222,425)
Hispanic / Latino 2.8%(7,050)
2000
White, non-Hispanic 79.3%(220,817)
Hispanic / Latino 6.9%(19,206)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Detailed origin tables are available for 2024; showing 2024 data.
Hispanic origin
+ 7 more hispanic origin groups with data Asian origin
+ 1 more asian origin group with data Ancestry
+ 46 more ancestry groups with data from 16.7% in 1990
US average: 24.4%
High school or higher
from 76.3% in 1990
US average: 80.3%
from 5.2% in 1990
US average: 8.8%
Section 06
Commute & transportation from 17.0 min in 1990
US average: 17.6
Section 07
Work & employment No data for the years selected.
Section 08
People & community No data for the years selected.
Marital status
Men 15+
Never married 27.9%(29,170)
Women 15+
Never married 22.3%(25,102)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 12.7% in 2013
US average: 8.4%
from 53.2% in 2020
US average: 54.8%
Direct-purchase
from 13.5% in 2020
US average: 13.8%
from 19.9% in 2020
US average: 18.4%
from 25.9% in 2020
US average: 20.9%
VA health care
from 2.1% in 2020
US average: 2.2%
Any private
from 64.5% in 2020
US average: 67.1%
Any public
from 43.5% 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) 19.5%(2,555)
Gulf War (1990s) 16.1%(2,110)
Share of the 13,120 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 Winnebago County Head to head
Compare Winnebago County to nearby counties WINNEBAGO COUNTY VS
Boone County
Income $84,571 +93%
Home value $216,900 +139%
Population 53,568 −81%
SEE FULL COMPARISON →
WINNEBAGO COUNTY VS
Ogle County
Income $82,132 +87%
Home value $189,200 +108%
Population 51,399 −82%
SEE FULL COMPARISON →
WINNEBAGO COUNTY VS
Rock County
Income $75,673 +72%
Home value $231,600 +155%
Population 166,472 −41%
SEE FULL COMPARISON →
WINNEBAGO COUNTY VS
Stephenson County
Income $64,043 +46%
Home value $134,900 +48%
Population 43,220 −85%
SEE FULL COMPARISON →
Frequently asked
How many people live in Winnebago County, Illinois? Winnebago County, Illinois has about 278,418 residents according to the 2000 Census.
What is the median household income in Winnebago County, Illinois? The typical household in Winnebago County, Illinois earns about $43,886 a year. Half of households make more than that, and half make less.
Is Winnebago County, Illinois expensive? In Winnebago County, Illinois, the median home is worth about $90,900, and the typical rent is about $514 a month.
How educated are people in Winnebago County, Illinois? About 19.4% of adults age 25 and over in Winnebago County, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Winnebago County, Illinois? About 9.6% of people in Winnebago County, Illinois live below the federal poverty line.
Has Winnebago County, Illinois grown since 1990? Yes, Winnebago County, Illinois has grown since 1990. The population has added about 25,505 residents, a change of about 10 percent over that period.
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