Kendall County, Illinois
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]
History
[edit | edit source]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.
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Early settlement and Native American presence
[edit | edit source]Before European settlers arrived, the land that would become Kendall County was inhabited by several Native American tribes, including the Potawatomi, Fox, and Kickapoo. These tribes lived in semi-permanent villages along the Fox River and relied on hunting, fishing, and agriculture for their sustenance. The presence of these indigenous peoples influenced the early European settlers' interactions and land use practices.
Pioneer life and establishment of towns
[edit | edit source]The first European-American settlers arrived in the 1820s, primarily from New England and New York. They were attracted to the region's fertile soil and abundant waterways. These pioneers faced numerous challenges, including harsh winters, prairie fires, and conflicts with Native American tribes. Despite these obstacles, they established homesteads, farms, and small communities. Towns like Newark, Lisbon, and Plattville began to take shape, serving as centers of commerce and social activity for the burgeoning population.
Role in the Underground Railroad
[edit | edit source]Kendall County played a significant role in the Underground Railroad, a network of secret routes and safe houses used by enslaved African Americans to escape to free states and Canada. Abolitionist sentiments ran strong in the area, and many residents actively participated in assisting runaway slaves. Notable figures like the Lewis and Sackett families in Oswego provided shelter and support to freedom seekers, risking their own safety in the process.
Civil War and military contributions
[edit | edit source]During the American Civil War, Kendall County made substantial contributions to the Union cause. Hundreds of local men enlisted in the Union Army, serving in regiments such as the 36th Illinois Volunteer Infantry Regiment and the 104th Illinois Volunteer Infantry Regiment. Additionally, Kendall County residents organized relief efforts, raised funds, and supported families of soldiers serving on the front lines.
Industrialization and economic growth
[edit | edit source]The late 19th and early 20th centuries witnessed the rapid industrialization of Kendall County. The construction of railroads, particularly the Chicago, Burlington and Quincy Railroad, spurred economic development by facilitating the transportation of goods and materials. Industrial centers emerged in towns like Yorkville, Plano, and Sandwich, where factories, mills, and foundries produced agricultural implements, machinery, and other goods.
Impact of agriculture
[edit | edit source]Agriculture remained the backbone of Kendall County's economy well into the 20th century. The county's rich soil and favorable climate made it ideal for farming, especially for corn, soybeans, and dairy products. Family-owned farms and agricultural cooperatives played a crucial role in sustaining rural communities and providing food and commodities to urban markets.
Suburbanization and population growth
[edit | edit source]Following World War II, Kendall County experienced a population boom as suburbanization swept across the United States. Improved transportation infrastructure, including the construction of Interstate 88 and Interstate 55, facilitated commuting to nearby urban centers like Chicago. Subdivisions and housing developments sprang up throughout the county, catering to the needs of a growing population seeking the tranquility of suburban life.
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Kendall County at the time of its creation in 1841
Geography
[edit | edit source]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]
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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
[edit | edit source]Template:Climate chart 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
[edit | edit source]
Interstate 80- File:US 30.svg U.S. Highway 30
- File:US 34.svg U.S. Highway 34
- File:US 52.svg U.S. Highway 52
- File:Illinois 25.svg Illinois Route 25
- File:Illinois 31.svg Illinois Route 31
- File:Illinois 47.svg Illinois Route 47
- File:Illinois 71.svg Illinois Route 71
- File:Illinois 126.svg Illinois Route 126
Adjacent counties
[edit | edit source]- DeKalb County - northwest
- Kane County - north
- DuPage County - northeast
- Will County - east
- Grundy County - south
- LaSalle County - southwest
Demographics
[edit | edit source]
2020 census
[edit | edit source]As of the 2020 census, the county had a population of 131,869. The median age was 35.8 years. 28.8% of residents were under the age of 18 and 10.9% of residents were 65 years of age or older. For every 100 females there were 96.8 males, and for every 100 females age 18 and over there were 94.0 males age 18 and over.[7][8]
The racial makeup of the county was 68.4% White, 7.6% Black or African American, 0.6% American Indian and Alaska Native, 3.6% Asian, <0.1% Native Hawaiian and Pacific Islander, 8.1% from some other race, and 11.7% from two or more races. Hispanic or Latino residents of any race comprised 20.6% of the population.[8]
88.6% of residents lived in urban areas, while 11.4% lived in rural areas.[9]
There were 43,534 households in the county, of which 45.3% had children under the age of 18 living in them. Of all households, 62.1% were married-couple households, 11.9% were households with a male householder and no spouse or partner present, and 19.7% were households with a female householder and no spouse or partner present. About 17.0% of all households were made up of individuals and 6.7% had someone living alone who was 65 years of age or older.[7]
There were 45,008 housing units, of which 3.3% were vacant. Among occupied housing units, 83.1% were owner-occupied and 16.9% were renter-occupied. The homeowner vacancy rate was 1.3% and the rental vacancy rate was 5.6%.[7]
Racial and ethnic composition
[edit | edit source]| Race / Ethnicity (NH = Non-Hispanic) | Pop 1980[10] | Pop 1990[11] | Pop 2000[12] | Pop 2010[13] | Pop 2020[14] | % 1980 | % 1990 | % 2000 | % 2010 | % 2020 |
|---|---|---|---|---|---|---|---|---|---|---|
| White alone (NH) | 35,652 | 37,134 | 48,677 | 85,156 | 84,690 | 95.83% | 94.22% | 89.24% | 74.22% | 64.22% |
| Black or African American alone (NH) | 180 | 205 | 693 | 6,343 | 9,693 | 0.48% | 0.52% | 1.27% | 5.53% | 7.35% |
| Native American or Alaska Native alone (NH) | 44 | 46 | 84 | 129 | 117 | 0.12% | 0.12% | 0.15% | 0.11% | 0.09% |
| Asian alone (NH) | 141 | 210 | 479 | 3,403 | 4,625 | 0.38% | 0.53% | 0.88% | 2.97% | 3.51% |
| Native Hawaiian or Pacific Islander alone (NH) | x [15] | x [16] | 11 | 28 | 10 | x | x | 0.02% | 0.02% | 0.01% |
| Other race alone (NH) | 61 | 13 | 45 | 91 | 487 | 0.16% | 0.03% | 0.08% | 0.08% | 0.37% |
| Mixed race or Multiracial (NH) | x [17] | x [18] | 469 | 1,688 | 5,120 | x | x | 0.86% | 1.47% | 3.88% |
| Hispanic or Latino (any race) | 1,124 | 1,805 | 4,086 | 17,898 | 27,127 | 3.02% | 4.58% | 7.49% | 15.60% | 20.57% |
| Total | 37,202 | 39,413 | 54,544 | 114,736 | 131,869 | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% |
2010 census
[edit | edit source]As of the 2010 United States census, 114,736 people, 38,022 households, and 30,067 families were residing in the county.[19] 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.[19] 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.[20]
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.[19]
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.[21]
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.[22] The reason for this growth is heavy suburbanization from the metropolitan Chicago area.
Communities
[edit | edit source]Cities
[edit | edit source]Villages
[edit | edit source]- Lisbon
- Millbrook
- Millington (mostly)
- Minooka (mostly)
- Montgomery (part)
- Newark
- Oswego (mostly)
- Plainfield (part)
- Plattville
Census-designated place
[edit | edit source]Other unincorporated communities
[edit | edit source]Townships
[edit | edit source]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.[23]
Government
[edit | edit source]County board members run in two districts. All other officers run county-wide:
- County board members (District 1): Ruben Rodriguez, Scott Gengler, Brian DeBolt, Seth Wormley, Jason Peterson;
- County board members (District 2): Elizabeth Flowers, Brooke Shanley, Zach Bachman, Matt Kellogg, Dan Koukol;
- County board chairman – Matt Kellogg
- Forest preserve president – Brian DeBolt
- Circuit court clerk – Matthew G. Prochaska
- Coroner – Jacquie Purcell
- County clerk and recorder – Debbie Gillette
- Sheriff – Dwight Baird
- State's attorney – Eric Weis
- Treasurer – Jill Ferko
Politics
[edit | edit source]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.
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 in 2016.
Joe Biden won the county with a majority in 2020. Kamala Harris in 2024 became the first Democratic presidential nominee to carry the county despite losing the 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.[lower-alpha 1]
| Year | Republican | Democratic | Third party | |||
|---|---|---|---|---|---|---|
| No. | % | No. | % | No. | % | |
| 1892 | 1,691 | 59.46% | 848 | 29.82% | 305 | 10.72% |
| 1896 | 2,128 | 71.51% | 774 | 26.01% | 74 | 2.49% |
| 1900 | 2,121 | 72.04% | 713 | 24.22% | 110 | 3.74% |
| 1904 | 2,120 | 78.84% | 423 | 15.73% | 146 | 5.43% |
| 1908 | 1,948 | 73.87% | 556 | 21.08% | 133 | 5.04% |
| 1912 | 534 | 20.14% | 531 | 20.03% | 1,586 | 59.83% |
| 1916 | 3,316 | 75.38% | 1,008 | 22.91% | 75 | 1.70% |
| 1920 | 3,459 | 87.99% | 439 | 11.17% | 33 | 0.84% |
| 1924 | 3,513 | 79.68% | 432 | 9.80% | 464 | 10.52% |
| 1928 | 3,589 | 75.53% | 1,154 | 24.28% | 9 | 0.19% |
| 1932 | 2,749 | 52.77% | 2,398 | 46.04% | 62 | 1.19% |
| 1936 | 3,138 | 54.86% | 2,374 | 41.50% | 208 | 3.64% |
| 1940 | 4,200 | 67.79% | 1,978 | 31.92% | 18 | 0.29% |
| 1944 | 4,022 | 70.55% | 1,673 | 29.35% | 6 | 0.11% |
| 1948 | 3,925 | 71.77% | 1,517 | 27.74% | 27 | 0.49% |
| 1952 | 4,982 | 77.11% | 1,476 | 22.84% | 3 | 0.05% |
| 1956 | 5,057 | 78.15% | 1,407 | 21.74% | 7 | 0.11% |
| 1960 | 5,975 | 72.62% | 2,242 | 27.25% | 11 | 0.13% |
| 1964 | 5,710 | 62.47% | 3,430 | 37.53% | 0 | 0.00% |
| 1968 | 7,184 | 70.45% | 2,228 | 21.85% | 786 | 7.71% |
| 1972 | 9,373 | 78.65% | 2,525 | 21.19% | 19 | 0.16% |
| 1976 | 9,011 | 67.50% | 4,202 | 31.48% | 136 | 1.02% |
| 1980 | 10,028 | 69.99% | 3,143 | 21.94% | 1,156 | 8.07% |
| 1984 | 10,872 | 73.81% | 3,789 | 25.72% | 69 | 0.47% |
| 1988 | 10,653 | 70.62% | 4,347 | 28.82% | 84 | 0.56% |
| 1992 | 8,521 | 46.29% | 5,423 | 29.46% | 4,462 | 24.24% |
| 1996 | 8,958 | 50.69% | 6,499 | 36.78% | 2,215 | 12.53% |
| 2000 | 13,688 | 60.12% | 8,444 | 37.09% | 637 | 2.80% |
| 2004 | 19,776 | 60.80% | 12,497 | 38.42% | 254 | 0.78% |
| 2008 | 21,380 | 45.75% | 24,742 | 52.95% | 609 | 1.30% |
| 2012 | 24,047 | 50.71% | 22,471 | 47.39% | 900 | 1.90% |
| 2016 | 24,961 | 46.18% | 24,884 | 46.03% | 4,210 | 7.79% |
| 2020 | 29,492 | 45.93% | 33,168 | 51.66% | 1,545 | 2.41% |
| 2024 | 31,970 | 48.04% | 32,977 | 49.55% | 1,602 | 2.41% |
| 2016 | 1 | 33.33% | 1 | 33.33% | 1 | 33.33% |
Property values
[edit | edit source]Kendall County was the fastest growing county in the US, more than doubling in population between the 2000 and 2010 censuses.[25]
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.[25]
Education
[edit | edit source]K-12 school districts include:[26]
Secondary school districts include:[26]
Elementary school districts include:[26]
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.[27]
In popular culture
[edit | edit source]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
[edit | edit source]Notes
[edit | edit source]- ↑ 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
[edit | edit source]- Specific
- ↑ "U.S. Census Bureau QuickFacts: Kendall County, Illinois". www.census.gov. Retrieved August 29, 2021.
- ↑ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
- ↑ "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.
- ↑ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. pp. 173.
- ↑ 5.0 5.1 "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. Archived from the original on February 12, 2020. Retrieved July 12, 2015.
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedweather - ↑ 7.0 7.1 7.2 "2020 Decennial Census Demographic Profile (DP1)". United States Census Bureau. 2021. Retrieved December 25, 2025.
- ↑ 8.0 8.1 "2020 Decennial Census Redistricting Data (Public Law 94-171)". United States Census Bureau. 2021. Retrieved December 25, 2025.
- ↑ "2020 Decennial Census Demographic and Housing Characteristics (DHC)". United States Census Bureau. 2023. Retrieved December 25, 2025.
- ↑ "1980 Census of Population - General Population Characteristics - Illinois- Table 14 - Persons by Race and Table 16 (p. 18-28) - Total Persons and Spanish Origin Persons by Type of Spanish Origin and Race (p. 29-39)" (PDF). United States Census Bureau.
- ↑ "1990 Census of Population - General Population Characteristics - Illinois - Table 6 - Race and Hispanic Orogin" (PDF). United States Census Bureau.
- ↑ "P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – Kendall County, Illinois". United States Census Bureau.
- ↑ "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) – Kendall County, Illinois". United States Census Bureau.
- ↑ "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) – Kendall County, Illinois". United States Census Bureau.
- ↑ included in the Asian category in the 1980 Census
- ↑ included in the Asian category in the 1990 Census
- ↑ not an option in the 1980 Census
- ↑ not an option in the 1990 Census
- ↑ 19.0 19.1 19.2 "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.
- ↑ "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.
- ↑ "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.
- ↑ "2010 US Census Brief" (PDF). Archived (PDF) from the original on February 28, 2017. Retrieved May 8, 2012.
- ↑ "Place Names & Geographical Features of Kendall County - Kendall County ILGenWeb". kendallkin.org. Archived from the original on October 18, 2013.
- ↑ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Archived from the original on March 23, 2018.
- ↑ 25.0 25.1 "Analysis: Kendall County home prices wilt under growing property tax bills". Will County Gazette. April 9, 2017. Retrieved March 22, 2018.
- ↑ 26.0 26.1 26.2 Geography Division (December 22, 2020). 2020 CENSUS - SCHOOL DISTRICT REFERENCE MAP: Kendall County, IL (PDF) (Map). U.S. Census Bureau. Retrieved June 29, 2025. - Text list
- ↑ retrieved 2007-02-13 Archived December 8, 2006, 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.CS1 maint: extra text: authors list (link)
External links
[edit | edit source]- Official website Archived October 18, 2017, at the Wayback Machine
Template:Kendall County, Illinois Template:Chicagoland Template:Illinois Coordinates: 41°35′N 88°26′W / 41.59°N 88.43°W
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- Kendall County, Illinois
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