Mount Carroll is a city in Carroll County, Illinois, United States. It is the Carroll County seat. The population was 1,717 at the 2010 census and as of 2018, the population had changed to an estimated 1,587. Due to its elevation and northwesterly location, Mount Carroll is subject to unusually cold winter weather. From 1930 to 1999, Mount Carroll held the record for the lowest temperature ever recorded in Illinois,, recorded on January 22, 1930. The record was beaten by Congerville in 1999, by one degree Fahrenheit. 20 years later, on January 31, 2019 during an extreme cold snap, Mount Carroll regained the title of coldest city in Illinois when a new Illinois state record low temperature of was officially recorded.
History
Mount Carroll began life as a mill town around 1841. In 1843, a referendum moved the county seat from nearby Savanna to Mount Carroll. The town was incorporated in 1855 and became a city in 1867; the first mayor was Nathaniel Halderman, a prominent local businessman and co-founder of the mill. Shimer College was established in Mt. Carroll in 1853, but mounting debts forced a move to Waukegan in 1979 and subsequently to Chicago in 2006. The campus now is home to several organizations, most notably the Campbell Center for Historic Preservation Studies. Political scientist Robert Keohane grew up in Mt. Carroll before attending Shimer.
Geography
Mount Carroll is located slightly northwest of the center of Carroll County at . U.S. Route 52 passes through the southern part of the city, leading east to Lanark and west to Savanna on the Mississippi River. According to the 2010 census, Mount Carroll has a total area of, all land.
As of the census of 2000, there were 1,832 people, 765 households, and 501 families residing in the city. The population density was 963.5 people per square mile. There were 855 housing units at an average density of 449.7 per square mile. The racial makeup of the city was 98.53% White, 0.16% African American, 0.27% Native American, 0.27% Asian, 0.33% from other races, and 0.44% from two or more races. Hispanic or Latino of any race were 1.31% of the population. There were 765 households out of which 29.0% had children under the age of 18 living with them, 54.4% were married couples living together, 8.0% had a female householder with no husband present, and 34.5% were non-families. 31.4% of all households were made up of individuals and 17.0% had someone living alone who was 65 years of age or older. The average household size was 2.35 and the average family size was 2.94. In the city, the population was spread out with 24.4% under the age of 18, 7.9% from 18 to 24, 26.0% from 25 to 44, 21.9% from 45 to 64, and 19.7% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 95.9 males. For every 100 females age 18 and over, there were 88.7 males. The median income for a household in the city was $34,861, and the median income for a family was $40,511. Males had a median income of $29,292 versus $22,212 for females. The per capita income for the city was $16,455. About 5.1% of families and 8.5% of the population were below the poverty line, including 12.5% of those under age 18 and 4.3% of those age 65 or over.
Notable people
Samuel James Campbell, banker and philanthropist, born in Mount Carroll
Felix A. Kremer, Wisconsin State Assemblyman, born in Mount Carroll
John L. Griffith, college coach, first commissioner of the Big Ten Conference
Howard Kyle, noted actor, Union School class of 1879 valedictorian
Suzanna W. Miles, archaeologist, anthropologist, ethnohistorian and Mayanist, born in Mount Carroll