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COUNTY

Kendall County

Illinois · 145,470 residents (2025 est.) · 320 sq mi
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Part of the Chicago metro area
The short version

Kendall County is home to 137,675 people in Illinois. Since 2000 the county has more than doubled, up 83,131 people. 84% of homes are owner-occupied. That puts it in the top 1% of US counties for household income. That is roughly 34% ahead of the Illinois median. Households take in $111,601 a year at the median, 36% more than the country as a whole.

At a glance
Wealthier
median household income $111,601, above the US median
US median: $82,259
Younger
median age 36.3
US median: 38.9
Average education
37% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Unique to this place

What stands out about Kendall County

What changed most since 1990

  • Population39,413 → 137,675 (+249%)US over the same years: +35%
  • White share94.7% → 62.0% (−32.6 pts)US over the same years: −17.8 pts
  • Hispanic share4.3% → 22.4% (+18.1 pts)US over the same years: +9.9 pts

Among the 102 counties in Illinois

  • 2nd in household income$111,601
  • 9th in share with a bachelor's degree36.9%
  • 5th in home value$322,400
  • 8th in diversity score69.5
Section 01

Population & growth

Total population
137,675
+152%since 2000
from 54,544 in 2000
145,470 in 2025 (Census Bureau estimate)
1990 – 2025
Population density
430 / sq mi
+152%since 2000
from 170 / sq mi in 2000
US average: 281
Median age
36.3
+6%since 2000
from 34.1 in 2000
US average: 38.9
Land area
320 sq mi
Population, 1990 – 2024
30K59K89K118K148K19902000201020202024Kendall County
2024138K
1990201020202024
Age distribution, 2024
Under 56.1%(8,389)
US avg: 5.6%
5 to 98%(10,960)
US avg: 6%
10 to 147.7%(10,662)
US avg: 6.4%
15 to 198%(10,972)
US avg: 6.6%
20 to 245.9%(8,084)
US avg: 6.5%
25 to 3412.5%(17,142)
US avg: 13.7%
35 to 4415.9%(21,845)
US avg: 13.2%
45 to 5414.4%(19,821)
US avg: 12.2%
55 to 6410.4%(14,334)
US avg: 12.7%
65 to 747.1%(9,767)
US avg: 10.2%
75 to 843.2%(4,422)
US avg: 5.1%
85 and over0.9%(1,277)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$111,601
−5%inflation adjusted, since 2000
from $64,625 in 2000
US average: $82,259
1990 – 2024
Per capita income
$44,141
+75%since 2000
from $25,188 in 2000
US average: $44,673
Households earning $100K+
70.3%
+16.6 ptssince 2009
from 53.6% in 2009
US average: 53.3%
Poverty rate
5.4%
+2.4 ptssince 2000
from 3.0% in 2000
US average: 12.5%
Income inequality (Gini)
0.361
+9%since 2010
from 0.332 in 2010
US average: 0.476
Workforce by industry, 2024
Information13%
US avg: 10.8%
Retail trade9.5%
US avg: 9.9%
Finance & insurance8.7%
US avg: 5.9%
Professional, scientific, technical7%
US avg: 5.1%
Wholesale trade6.6%
US avg: 6.9%
Other services5.9%
US avg: 6.7%
Public administration4.9%
US avg: 4.8%
Transportation & warehousing2.7%
US avg: 2.2%
Arts, entertainment, food1.7%
US avg: 1.9%
Education & health services1.7%
US avg: 0.9%
Agriculture, forestry, fishing0.6%
US avg: 1.6%
Construction0.6%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$322,400
+13%inflation adjusted, since 2000
from $156,100 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$1,781
+36%inflation adjusted, since 2000
from $720 in 2000
US average: $1,442
Owner-occupied
84.0%
−0.1 ptssince 2000
from 84.1% in 2000
16.0% rent
Vacancy rate
2.6%
−3.8 ptssince 2009
from 6.4% in 2009
US average: 10.0%
Persons per household
3.03 people
−2%since 2009
from 3.09 people in 2009
US average: 2.54
Owner cost-burdened
24.1%
−14.0 ptssince 2009
from 38.1% in 2009
US average: 22.9%
Renter cost-burdened
51.2%
+8.2 ptssince 2009
from 43.0% in 2009
US average: 47.4%
Afford Score
2.9
−8%since 2009
from 3.2 in 2009
1990 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Gentrification Score
19
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04

Race & ethnicity

2000
White, non-Hispanic89.2%(48,677)
Black1.3%(693)
Hispanic / Latino7.5%(4,086)
Asian0.9%(479)
Other0%
2024
White, non-Hispanic62%(85,403)
Black7.6%(10,449)
Hispanic / Latino22.4%(30,872)
Asian3.5%(4,839)
Other4.4%(6,112)
Diversity Score
69
+41%since 2009
from 49 in 2009
1990 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
18
−15%since 2020
from 21 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican18.7%(25,734)
Puerto Rican1.4%(1,967)
South American0.7%(1,032)
Peruvian0.2%(314)
Ecuadorian0.2%(310)
Cuban0.2%(263)
Panamanian0.2%(252)
Spaniard0.2%(247)
Colombian0.2%(237)
Dominican0.1%(157)
Guatemalan0.1%(136)
+ 7 more hispanic origin groups with data
Venezuelan0.1%(136)
Salvadoran0.1%(88)
Nicaraguan0.1%(82)
Honduran0%(66)
Argentine0%(21)
Bolivian0%(14)
Asian origin
Asian Indian1.6%(2,174)
Filipino0.8%(1,083)
Chinese0.4%(503)
Pakistani0.2%(294)
Korean0.2%(221)
Bangladeshi0.1%(131)
Nepalese0.1%(120)
Laotian0.1%(106)
Japanese0%(62)
Cambodian0%(31)
Taiwanese0%(26)
+ 3 more asian origin groups with data
Hmong0%(9)
Thai0%(6)
Burmese0%(2)
Pacific Islander origin
Ancestry
German19.4%(26,706)
Irish11.9%(16,387)
English6.5%(8,944)
Polish6.5%(8,904)
Italian6.1%(8,368)
American2%(2,706)
Norwegian1.9%(2,683)
Swedish1.9%(2,595)
French1.7%(2,303)
Czech1.1%(1,567)
Lithuanian1.1%(1,485)
Scottish1.1%(1,458)
+ 40 more ancestry groups with data
Russian1.1%(1,452)
Greek1%(1,348)
Romanian1%(1,343)
Dutch0.8%(1,072)
Hungarian0.4%(583)
Arab0.4%(566)
British0.4%(566)
Scotch-Irish0.4%(559)
Croatian0.3%(438)
Welsh0.3%(428)
Ukrainian0.3%(373)
Nigerian0.3%(356)
Danish0.3%(345)
Austrian0.2%(343)
Slovak0.2%(313)
Belgian0.2%(269)
Slovene0.2%(255)
Canadian0.1%(206)
Swiss0.1%(194)
West Indian0.1%(188)
Bulgarian0.1%(170)
Jamaican0.1%(132)
Turkish0.1%(114)
Iraqi0.1%(91)
Serbian0.1%(75)
Macedonian0.1%(69)
Finnish0%(61)
Lebanese0%(54)
Latvian0%(19)
Ethiopian0%(17)
Moroccan0%(16)
Brazilian0%(10)
Israeli0%(10)
Iranian0%(1)
Section 05

Education

Bachelor's degree or higher
36.9%
+11.7 ptssince 2000
from 25.3% in 2000
US average: 35.6%
High school or higher
94.0%
+4.1 ptssince 2000
from 89.9% in 2000
US average: 89.6%
Graduate degree
12.7%
+5.5 ptssince 2000
from 7.2% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
31.6 min
+44%since 2000
from 21.9 min in 2000
US average: 26.5
Drive alone to work
76.5%
−7.9 ptssince 2009
from 84.4% in 2009
US average: 68.9%
Carpooled to work
6.4%
−0.9 ptssince 2009
from 7.3% in 2009
US average: 8.5%
Public transit
1.0%
−2.0 ptssince 2009
from 3.0% in 2009
US average: 3.2%
Worked from home
14.7%
+10.7 ptssince 2009
from 4.1% in 2009
US average: 15.0%
Walked to work
0.6%
Unchangedsince 2009
from 0.6% in 2009
US average: 2.4%
Biked to work
0.0%
−0.2 ptssince 2009
from 0.2% in 2009
US average: 0.4%
No vehicle available
2.2%
−0.3 ptssince 2009
from 2.4% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
4.3%
−2.7 ptssince 2011
from 7.0% in 2011
US average: 5.2%
Labor force participation
72.7%
−3.4 ptssince 2011
from 76.0% in 2011
US average: 63.5%
Women 20-64 in the labor force
78.4%
+0.4 ptssince 2020
from 78.0% in 2020
US average: 74.6%
Self-employed
12.7%
+1.2 ptssince 2009
from 11.5% in 2009
US average: 13.1%
Management & professional
41.4%
+6.7 ptssince 2009
from 34.7% in 2009
US average: 42.5%
Section 08

People & community

Male
50.0%
−0.4 ptssince 2009
from 50.3% in 2009
Female
50.0%
+0.4 ptssince 2009
from 49.7% in 2009
Foreign born
11.4%
+3.1 ptssince 2009
from 8.3% in 2009
US average: 14.1%
Veterans
4.5%
−4.1 ptssince 2009
from 8.6% in 2009
US average: 6.2%
With a disability
8.2%
+1.8 ptssince 2012
from 6.4% in 2012
US average: 13.3%
Uninsured
4.0%
−3.7 ptssince 2013
from 7.7% in 2013
US average: 8.4%
Broadband at home
95.6%
+3.3 ptssince 2017
from 92.3% in 2017
US average: 91.0%
Computer in household
98.3%
+1.6 ptssince 2020
from 96.7% in 2020
US average: 95.5%
Same house as last year
91.6%
+2.9 ptssince 2020
from 88.7% in 2020
US average: 87.7%
English only at home
78.2%
−4.8 ptssince 2016
from 83.0% in 2016
US average: 77.7%
Spanish at home
15.3%
+3.5 ptssince 2016
from 11.7% in 2016
US average: 13.6%
Marital status
Men 15+
Never married34.2%(18,314)
Married56.1%(29,998)
Widowed1.7%(910)
Divorced8%(4,272)
Women 15+
Never married30%(16,278)
Married52.9%(28,657)
Widowed5.7%(3,098)
Divorced11.3%(6,137)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
4.0%
−3.7 ptssince 2013
from 7.7% in 2013
US average: 8.4%
Employer-based
71.8%
−3.0 ptssince 2020
from 74.8% in 2020
US average: 54.8%
Direct-purchase
12.0%
+1.7 ptssince 2020
from 10.3% in 2020
US average: 13.8%
Medicare
11.4%
+0.5 ptssince 2020
from 10.9% in 2020
US average: 18.4%
Medicaid
13.1%
+2.5 ptssince 2020
from 10.6% in 2020
US average: 20.9%
VA health care
1.5%
Unchangedsince 2020
from 1.5% in 2020
US average: 2.2%
Any private
81.9%
−1.6 ptssince 2020
from 83.5% in 2020
US average: 67.1%
Any public
23.9%
+2.7 ptssince 2020
from 21.2% 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)31.8%(1,444)
US avg: 26.4%
Gulf War (1990s)28.9%(1,311)
US avg: 24.3%
Vietnam era29.9%(1,358)
US avg: 33.1%
Korean War2.6%(117)
US avg: 4.5%
World War II0.7%(30)
US avg: 1%

Share of the 4,537 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.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time

Kendall County, decade by decade

Kendall County population, inflation-adjusted income and home value, education, and diversity by year
YearPopulationMedian household incomeMedian home valueBachelor's degree+Diversity score
199039,413$102,805$237,60717.8%12.8
200054,544$117,724$284,36025.3%24.7
2010114,736$114,937$357,19732.3%52.6
2020131,869$117,391$295,37435.9%67.3
2024137,675$111,601$322,40036.9%69.5

Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.

Drill deeper

Places similar to Kendall County

Napa County
Pop 132,949
Fayette County
Pop 125,156
Boone County
Pop 145,316
Carroll County
Pop 176,677
Places similar to Kendall County
Head to head

Compare Kendall County to nearby counties

KENDALL COUNTY VS
Grundy County
Income$92,235−17%
Home value$271,700−16%
Population54,052−63%
SEE FULL COMPARISON →
KENDALL COUNTY VS
Kane County
Income$103,163−8%
Home value$327,000+1%
Population525,757+261%
SEE FULL COMPARISON →
KENDALL COUNTY VS
Will County
Income$109,984−1%
Home value$319,600−1%
Population712,253+390%
SEE FULL COMPARISON →
KENDALL COUNTY VS
DuPage County
Income$112,096same
Home value$391,400+21%
Population934,298+542%
SEE FULL COMPARISON →
Frequently asked

How many people live in Kendall County, Illinois?

Kendall County, Illinois has about 137,675 residents according to the 2024 American Community Survey.

What is the median household income in Kendall County, Illinois?

The typical household in Kendall County, Illinois earns about $111,601 a year. Half of households make more than that, and half make less.

Is Kendall County, Illinois expensive?

In Kendall County, Illinois, the median home is worth about $322,400, and the typical rent is about $1,781 a month.

How educated are people in Kendall County, Illinois?

About 36.9% of adults age 25 and over in Kendall County, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Kendall County, Illinois?

About 5.4% of people in Kendall County, Illinois live below the federal poverty line.

Has Kendall County, Illinois grown since 1990?

Yes, Kendall County, Illinois has grown since 1990. The population has added about 98,262 residents, a change of about 249 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →