Kendall County, Illinois

County in Illinois, United States

U.S. county in Illinois

Kendall County

U.S. county

Kendall County Courthouse

Kendall County Courthouse

Map of Illinois highlighting Kendall County

Location within the U.S. state of Illinois

Illinois's location within the U.S.

Country|  United States
State|  Illinois
Founded| 1841
Named for| Amos Kendall
Seat| Yorkville
Largest village| Oswego
Area

• Total| 322 sq mi (830 km2)
• Land| 320 sq mi (800 km2)
• Water| 2.0 sq mi (5 km2)  0.61%
Population

(2020)

• Total| 131,869
• Estimate

(2019)

| 128,990
Time zone| UTC−6 (Central)
• Summer (DST)| UTC−5 (CDT)
Congressional districts| 11th, 14th
Website| www.co.kendall.il.us
File:Kendallmoraine.jpgTerminal moraines, such as this one in central Kendall County, rise dramatically from the surrounding plain.

Kendall County is a county in the U.S. state of Illinois, within the Chicago metropolitan area. According to the 2020 census, it has a population of 131,869.[1] Its county seat is Yorkville,[2] and its most populous municipality is Oswego.

Kendall County is part of the Chicago metropolitan area and was the fastest-growing county in the United States between 2000 and 2010.[3]

## Contents

* 1 History
* 2 Geography
* 2.1 Climate and weather
* 2.2 Major highways
* 2.3 Adjacent counties
* 3 Demographics
* 4 Communities
* 4.1 Cities
* 4.2 Villages
* 4.3 Census-designated place
* 4.4 Other unincorporated communities
* 4.5 Townships
* 5 Government
* 5.1 Politics
* 5.2 Property values
* 6 Education
* 7 In popular culture
* 8 See also
* 9 Notes
* 10 References
* 11 External links

## History

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Kendall County was formed in 1841 out of LaSalle and Kane Counties.

The county is named after Amos Kendall,[4] who was the editor of the Frankfort, Kentucky, newspaper, and went on to be an important advisor to President Andrew Jackson. Kendall became the U.S. Postmaster General in 1835.

* Kendall County at the time of its creation in 1841

Kendall County at the time of its creation in 1841

## Geography

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According to the U.S. Census Bureau, the county has an area of 322 square miles (830 km2), of which 320 square miles (830 km2) are land and 2.0 square miles (5.2 km2) (0.6%) are covered by water.[5]

Kendall County is a small but rapidly growing county that has the majority of its population in the northeast, and along the Fox River (the only river in the county), which runs through the county's northwestern section. Many new subdivisions have been constructed in this county, which has produced considerable population growth. Southern Kendall still remains largely agricultural. Kendall County has two primary ranges of low-lying hills formed by what is known as an end moraine. Ransom, the more predominant of the two moraines, runs through the west and north-central part of the county. This moraine has created elevations over 800 feet (240 m), in contrast to elevations in southern Kendall County that drop to the lower 500-foot (150 m) range. Minooka, the other major end moraine ridge in Kendall County, runs along its entire eastern border with Will County. The two moraines intersect at almost a right angle in the township of Oswego. The county's only designated state park is Silver Springs State Fish and Wildlife Area.

### Climate and weather

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Yorkville, Illinois

Climate chart (explanation)

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1.6

1.5

2.6

3.9

3.9

4.3

4.4

4.4

3.5

2.7

3.2

2.4

Average max. and min. temperatures in °F
Precipitation totals in inches
Source: The Weather Channel[6]
| Metric conversion

−12

110

112

111

Average max. and min. temperatures in °C
Precipitation totals in mm

In recent years, average temperatures in the county seat of Yorkville have ranged from a low of 10 °F (−12 °C) in January to a high of 84 °F (29 °C) in July, although a record low of −26 °F (−32 °C) was recorded in January 1985 and a record high of 111 °F (44 °C) was recorded in July 1936. Average monthly precipitation ranged from 1.52 inches (39 mm) in February to 4.39 inches (112 mm) in July.[6]

### Major highways

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* Interstate 80
* U.S. Highway 30
* U.S. Highway 34
* U.S. Highway 52
* File:Illinois 25.svg Illinois Route 25
* File:Illinois 31.svg Illinois Route 31
* Illinois Route 47
* File:Illinois 71.svg Illinois Route 71
* File:Illinois 126.svg Illinois Route 126

### Adjacent counties

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* DeKalb County \- northwest
* Kane County \- north
* DuPage County \- northeast
* Will County \- east
* Grundy County \- south
* LaSalle County \- west

## Demographics

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Historical population

Census | Pop. |  | %±
1850| 7,730| | —
1860| 13,074| | 69.1%
1870| 12,399| | −5.2%
1880| 13,083| | 5.5%
1890| 12,106| | −7.5%
1900| 11,467| | −5.3%
1910| 10,777| | −6.0%
1920| 10,074| | −6.5%
1930| 10,555| | 4.8%
1940| 11,105| | 5.2%
1950| 12,115| | 9.1%
1960| 17,540| | 44.8%
1970| 26,374| | 50.4%
1980| 37,202| | 41.1%
1990| 39,413| | 5.9%
2000| 54,544| | 38.4%
2010| 114,736| | 110.4%
2020| 131,869| | 14.9%
U.S. Decennial Census[7]
1790-1960[8] 1900-1990[9]
1990-2000[10] 2010-2019[11]

File:USA Kendall County, Illinois age pyramid.svg2000 census age pyramid for Kendall County

As of the 2010 United States Census, 114,736 people, 38,022 households, and 30,067 families were residing in the county.[12] The population density was 358.2 inhabitants per square mile (138.3/km2). The 40,321 housing units averaged 125.9 per square mile (48.6/km2).[5] The racial makeup of the county was 83.6% White, 5.7% African American, 3.0% Asian, 0.3% Native American, 5.0% from other races, and 2.3% from two or more races. Those of Hispanic or Latino origin made up 15.6% of the population.[12] In terms of ancestry, 28.0% were German, 16.0% were Irish, 9.5% were Polish, 9.4% were Italian, 7.5% were English, and 3.2% were American.[13]

Of the 38,022 households, 47.9% had children under the age of 18 living with them, 65.8% were married couples living together, 9.2% had a female householder with no husband present, 20.9% were not families, and 16.4% of all households were made up of individuals. The average household size was 3.01, and the average family size was 3.41. The median age was 32.9 years.[12]

The county's median household income was $79,897 and its median family income was $87,309. Males had a median income of $64,048 versus $42,679 for females. The county's per capita income was $30,565. About 2.9% of families and 3.9% of the population were below the poverty line, including 4.6% of those under age 18 and 3.4% of those age 65 or over.[14]

Kendall County was listed as the fastest-growing county in the US from 2000 to 2009, experiencing a population growth rate of 110.4% in this period.[15] The reason for this growth is heavy suburbanization from the metropolitan Chicago area.

## Communities

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### Cities

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* Aurora (part)
* Joliet (part)
* Plano
* Sandwich (part)
* Yorkville (mostly)

### Villages

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* Lisbon
* Millbrook
* Millington (mostly)
* Minooka (mostly)
* Montgomery (part)
* Newark
* Oswego
* Plainfield (part)
* Plattville

### Census-designated place

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* Boulder Hill

### Other unincorporated communities

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* Ament Corners
* Bristol
* Fox
* Helmar
* Little Rock

### Townships

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The county is an 18-mile (29 km) square, which is divided up into 9 townships. Each township is divided into 36 one-mile-square sections, except that the Fox River is used as a township border, resulting in Bristol being the smallest township with the extra area being assigned to Oswego and Kendall Townships. Two exceptions to the section grid reflect Indian land grants under the Treaty of Prairie du Chien in 1829: the Mo-Ah-Way Reservation in Oswego Township and the Waish-Kee-shaw Reservation in Na-Au-Say Township. These areas were eventually sold to European settlers.[16]

* Big Grove Township
* Bristol Township
* Fox Township
* Kendall Township
* Lisbon Township
* Little Rock Township
* Na-au-say Township
* Oswego Township
* Seward Township

## Government

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County board members run in two districts. All other officers run county-wide:

* County Board Members: Judy Gilmour, Scott Gengler, Brian Debolt, Elizabeth Flowers, Robyn Vickers, Amy Cesich, Scott R. Gryder, Matt Kellogg, Dan Koukol;
* County Board Chairman – Scott R. Gryder
* Forest Preserve President – Judy Gilmour
* Clerk of the Circuit Court – Matthew G. Prochaska
* Coroner – Jacquie Purcell
* County Clerk and Recorder – Debbie Gillette
* Sheriff – Dwight Baird
* State's Attorney – Eric Weis
* Treasurer – Jill Ferko

### Politics

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For years, Kendall County was one of the most Republican counties in Illinois. Between the 1856 and 2004 elections, the only time Kendall County did not give a plurality to the GOP Presidential nominee was in 1912 when the Republican Party was mortally divided and Progressive Party candidate Theodore Roosevelt won 57.56% of the county's vote against conservative incumbent President William Howard Taft. Moreover, only one Democratic Presidential candidate – Franklin Delano Roosevelt in 1932 and 1936 – ever cracked 40% of Kendall County's vote during this span of 38 presidential elections. As a measure of how Republican the county was at the time, it gave Barry Goldwater 62 percent of the vote, his strongest showing in the state, even as Lyndon Johnson won the state and the nation in a landslide.

In 2008, Illinois native Barack Obama became the first Democrat to carry the county since Franklin Pierce in 1852. Obama did not repeat this feat against Mitt Romney in 2012, nor did Democrat Hillary Clinton defeat Donald Trump in 2016. Joe Biden won the county in the 2020 United States Presidential election.

Kendall County is one of only thirteen counties to have voted for Obama in 2008, Romney in 2012, Trump in 2016, and Biden in 2020.[a]

United States presidential election results for Kendall County, Illinois[17] Year  | Republican | Democratic | Third party

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No. | % | No. | % | No. | %
2020 | 29,492  | 46.10%  | 33,168  | 51.85% | 1,314  | 2.05%
2016 | 24,961  | 46.18% | 24,884  | 46.03%  | 4,210  | 7.79%
2012 | 24,047  | 50.71% | 22,471  | 47.39%  | 900  | 1.90%
2008 | 21,380  | 45.75%  | 24,742  | 52.95% | 609  | 1.30%
2004 | 19,776  | 60.80% | 12,497  | 38.42%  | 254  | 0.78%
2000 | 13,688  | 60.12% | 8,444  | 37.09%  | 637  | 2.80%
1996 | 8,958  | 50.69% | 6,499  | 36.78%  | 2,215  | 12.53%
1992 | 8,521  | 46.29% | 5,423  | 29.46%  | 4,462  | 24.24%
1988 | 10,653  | 70.62% | 4,347  | 28.82%  | 84  | 0.56%
1984 | 10,872  | 73.81% | 3,789  | 25.72%  | 69  | 0.47%
1980 | 10,028  | 69.99% | 3,143  | 21.94%  | 1,156  | 8.07%
1976 | 9,011  | 67.50% | 4,202  | 31.48%  | 136  | 1.02%
1972 | 9,373  | 78.65% | 2,525  | 21.19%  | 19  | 0.16%
1968 | 7,184  | 70.45% | 2,228  | 21.85%  | 786  | 7.71%
1964 | 5,710  | 62.47% | 3,430  | 37.53%  | 0  | 0.00%
1960 | 5,975  | 72.62% | 2,242  | 27.25%  | 11  | 0.13%
1956 | 5,057  | 78.15% | 1,407  | 21.74%  | 7  | 0.11%
1952 | 4,982  | 77.11% | 1,476  | 22.84%  | 3  | 0.05%
1948 | 3,925  | 71.77% | 1,517  | 27.74%  | 27  | 0.49%
1944 | 4,022  | 70.55% | 1,673  | 29.35%  | 6  | 0.11%
1940 | 4,200  | 67.79% | 1,978  | 31.92%  | 18  | 0.29%
1936 | 3,138  | 54.86% | 2,374  | 41.50%  | 208  | 3.64%
1932 | 2,749  | 52.77% | 2,398  | 46.04%  | 62  | 1.19%
1928 | 3,589  | 75.53% | 1,154  | 24.28%  | 9  | 0.19%
1924 | 3,513  | 79.68% | 432  | 9.80%  | 464  | 10.52%
1920 | 3,459  | 87.99% | 439  | 11.17%  | 33  | 0.84%
1916 | 3,316  | 75.38% | 1,008  | 22.91%  | 75  | 1.70%
1912 | 534  | 20.14%  | 531  | 20.03%  | 1,586  | 59.83%
1908 | 1,948  | 73.87% | 556  | 21.08%  | 133  | 5.04%
1904 | 2,120  | 78.84% | 423  | 15.73%  | 146  | 5.43%
1900 | 2,121  | 72.04% | 713  | 24.22%  | 110  | 3.74%
1896 | 2,128  | 71.51% | 774  | 26.01%  | 74  | 2.49%
1892 | 1,691  | 59.46% | 848  | 29.82%  | 305  | 10.72%

### Property values

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Kendall County was the fastest growing county in the US, more than doubling in population between the 2000 and 2010 censuses.[18]

All five Kendall County communities analyzed saw their real home prices fall dramatically from 2007 to 2015, from a low of 17 percent in Montgomery to a high of 44 percent in Plano. Minooka and Oswego both saw their home values fall 34 percent. In Yorkville, they fell 36 percent.[18]

## Education

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* Lisbon Community Consolidated School District 90
* Newark Community Consolidated School District 66
* Newark Community High School District 18
* Oswego Community Unit School District 308
* Plano Community Unit School District 88
* Yorkville Community Unit School District 115
* School District #101
* School District #201
* School District #202
* School District #429
* School District #430 (Sandwich Community School District #430)

The northern half of the county is in Community College District 516 and is served by Waubonsee Community College in Sugar Grove, Aurora, and Plano. The southern half is in Community College District 525 and is served by Joliet Junior College in Joliet.[19]

## In popular culture

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Locations within and around the City of Plano were stand-ins for Clark Kent's hometown of Smallville, Kansas in the 2013 film Man of Steel as well as the 2016 film Batman v. Superman: Dawn of Justice. Plano has also been used in the film Witless Protection, with both films having been filmed in Plano's historic downtown area. Filming has also taken place south of Plano at the Farnsworth House, a modern architectural landmark for documentaries and commercials.

## See also

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* National Register of Historic Places listings in Kendall County, Illinois

## Notes

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1. ^ The other twelve are Butte County, California; Teton County, Idaho; Kent County, Maryland; McLean County, Illinois; Tippecanoe County, Indiana; Kent County, Michigan; Leelanau County, Michigan; Carroll County, New Hampshire; Rockingham County, New Hampshire; Marion County, Oregon; Grand County, Utah; and Albany County, Wyoming.

## References

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Specific

1. ^ "U.S. Census Bureau QuickFacts: Kendall County, Illinois". www.census.gov. Retrieved August 29, 2021.
2. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
3. ^ "Population Distribution and Change: 2000 to 2010" (PDF). United States Census Bureau. March 2011. p. 9\. Archived (PDF) from the original on February 28, 2017. Retrieved March 26, 2011.
4. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. pp. 173.
5. ^ a b "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. Archived from the original on February 12, 2020. Retrieved July 12, 2015.
6. ^ a b "Monthly Averages for Yorkville, Illinois". The Weather Channel. Archived from the original on October 23, 2012. Retrieved January 27, 2011.
7. ^ "U.S. Decennial Census". United States Census Bureau. Archived from the original on April 26, 2015. Retrieved July 6, 2014.
8. ^ "Historical Census Browser". University of Virginia Library. Archived from the original on August 11, 2012. Retrieved July 6, 2014.
9. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Archived from the original on April 24, 2014. Retrieved July 6, 2014.
10. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Archived (PDF) from the original on December 18, 2014. Retrieved July 6, 2014.
11. ^ "State & County QuickFacts". United States Census Bureau. Archived from the original on June 6, 2011. Retrieved July 6, 2014.
12. ^ a b c "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved July 12, 2015.
13. ^ "DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved July 12, 2015.
14. ^ "DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved July 12, 2015.
15. ^ "2010 US Census Brief" (PDF). Archived (PDF) from the original on February 28, 2017. Retrieved May 8, 2012.
16. ^ "Place Names & Geographical Features of Kendall County - Kendall County ILGenWeb". kendallkin.org. Archived from the original on October 18, 2013.
17. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Archived from the original on March 23, 2018.
18. ^ a b "Analysis: Kendall County home prices wilt under growing property tax bills". Will County Gazette. April 9, 2017. Retrieved March 22, 2018.
19. ^ retrieved 2007-02-13 Archived 2006-12-08 at the Wayback Machine

General

* Forstall, Richard L. (editor) (1996). Population of states and counties of the United States: 1790 to 1990 : from the twenty-one decennial censuses. United States Department of Commerce, Bureau of the Census, Population Division. ISBN 0-934213-48-8. `{{cite book}}`: `|first=` has generic name (help)

## External links

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* Official website

Places adjacent to Kendall County, Illinois

| DeKalb County | Kane County | DuPage County

|
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|  |
LaSalle County |

Kendall County, Illinois

| Will County
|  |
| Grundy County |

* v
* t
* e

Municipalities and communities of Kendall County, Illinois, United States

County seat: Yorkville

Cities|

* Aurora‡
* Joliet‡
* Plano
* Sandwich‡
* Yorkville

File:Map of Illinois highlighting Kendall County.svgMap of Illinois highlighting Kendall County

Villages|

* Lisbon
* Millbrook
* Millington‡
* Minooka‡
* Montgomery‡
* Newark
* Oswego‡
* Plainfield‡
* Plattville

Townships|

* Big Grove
* Bristol
* Fox
* Kendall
* Lisbon
* Little Rock
* Na-Au-Say
* Oswego
* Seward

CDP|

* Boulder Hill

Other
unincorporated
communities|

* Ament Corners
* Bristol
* Helmar
* Little Rock

Footnotes|

‡This populated place also has portions in an adjacent county or counties

* United States portal

* v
* t
* e

Chicago metropolitan area

Major city|

* Chicago

Cities
(over 30,000 in 2010)|

* Aurora
* Berwyn
* Calumet City
* Chicago Heights
* Crystal Lake
* DeKalb
* Des Plaines
* Elgin
* Elmhurst
* Evanston
* Gary
* Hammond
* Joliet
* Kenosha
* Naperville
* North Chicago
* Park Ridge
* Portage
* St. Charles
* Valparaiso
* Waukegan
* Wheaton

Towns and villages
(over 30,000 in 2010)|

* Addison
* Algonquin
* Arlington Heights
* Bartlett
* Bolingbrook
* Buffalo Grove
* Carol Stream
* Carpentersville
* Cicero
* Downers Grove
* Elk Grove Village
* Glendale Heights
* Glenview
* Gurnee
* Hanover Park
* Hoffman Estates
* Lombard
* Merrillville
* Mount Prospect
* Mundelein
* Northbrook
* Oak Lawn
* Oak Park
* Orland Park
* Oswego
* Palatine
* Plainfield
* Romeoville
* Schaumburg
* Skokie
* Streamwood
* Tinley Park
* Wheeling
* Woodridge

Counties|

* Cook
* DeKalb
* DuPage
* Grundy
* Jasper
* Kane
* Kendall
* Kenosha
* Lake, IL
* Lake, IN
* McHenry
* Newton
* Porter
* Will

Regions|

* Great Lakes
* Northern Illinois
* Northern Indiana

Sub-regions|

* Chicago Southland
* Eastern Ridges and Lowlands
* Fox Valley (Illinois)
* Golden Corridor
* Illinois Technology and Research Corridor
* North Shore (Chicago)
* Northwest Indiana

Illinois, United States

* v
* t
* e

State of Illinois

Springfield (capital)

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Regions|

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Municipalities|

* Alton/Granite City/Edwardsville
* Arlington Heights/Palatine
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* Belleville/East St. Louis/Collinsville/O'Fallon
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* Peoria/Pekin/East Peoria/Morton/Washington
* Pontiac
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* Rockford/Belvidere/Machesney Park/Loves Park
* St. Charles
* Schaumburg/Hoffman Estates/Elk Grove Village
* Springfield
* Sterling/Rock Falls
* Taylorville
* Waukegan/North Chicago/Gurnee
* Wheaton

Counties|

* Adams
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* Will
* Williamson
* Winnebago
* Woodford

Coordinates: 41°35′N 88°26′W﻿ / ﻿41.59°N 88.43°W﻿ / 41.59; -88.43
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