Columbia, Illinois

Climate

The climate in this area is characterized by hot, humid summers and generally cool winters. According to the Köppen Climate Classification system, Columbia, IL has a humid subtropical climate, abbreviated "Cfa" on climate maps.

Racial and ethnic composition

2020 census

As of the 2020 census, Columbia had a population of 10,999.^[11] The median age was 40.5 years. 24.3% of residents were under the age of 18 and 16.8% were 65 years of age or older. For every 100 females, there were 97.9 males, and for every 100 females age 18 and over, there were 93.1 males age 18 and over.^[12]

96.8% of residents lived in urban areas, while 3.2% lived in rural areas.^[13]

There were 4,315 households, of which 33.8% had children under the age of 18 living in them. Of all households, 58.3% were married-couple households, 13.8% were households with a male householder and no spouse or partner present, and 22.7% were households with a female householder and no spouse or partner present. About 24.4% of all households were made up of individuals and 11.8% had someone living alone who was 65 years of age or older.^[12]

There were 4,545 housing units, of which 5.1% were vacant. The homeowner vacancy rate was 1.0% and the rental vacancy rate was 6.4%.^[12]

2010 census

As of the census^[14] of 2010, there were 9,707 people. 3,792 households and 2,692 families reside in the city. The population density was 932.5 people per square mile. There were 3,977 housing units at an average density of 382 per square mile. The racial makeup of the city was 97.4% White, 0.4% African American, 0.1% Native American, 0.7% Asian, 0.6% from other races, and 0.9% from two or more races. Hispanic or Latino of any race were 2% of the population.

There were 3,792 households, out of which 32.9% had children under the age of 18 living with them, 59.1% were married couples living together, 8.6% had a female householder with no husband present, and 29.0% were non-families. 24.2% of all households were made up of individuals, and 10.9% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 3.03.

In the city, the age distribution of the population shows 25.0% under the age of 18, 5.3% from 20 to 24, 25.6% from 25 to 44, 27.9% from 45 to 64, and 14.3% who were 65 years of age or older. The median age was 39.6 years. For every 100 females, there were 94.4 males. For every 100 females age 18 and over, there were 89.7 males.

The median income for a household in the city was $67,333 and the median income for a family was $90,486. Males had a median income of $59,396 versus $43,594 for females. The per capita income for the city was $32,243. About 2.3% of families and 4.7% of the population were below the poverty line, including 1.7% of those under age 18 and 3.4% of those age 65 or over.

Highways

To get to places in other towns and cities, Columbians rely mostly on the four highways located nearby. Illinois Route 3 is the only highway that runs through the city. It connects Columbia with Dupo and Cahokia in the northwest and Waterloo and Red Bud from the southeast. Illinois Route 158 has its western terminus just south of the city off of Route 3 and connects Columbia with Millstadt.

Interstate 255 and U.S. Route 50 overlap in St. Louis and continue over the Jefferson Barracks Bridge to Columbia, where they overlap again with Route 3 in an area just north of the city.

Airport

There is a small airport, Sackman Field, on the western edge of town, named for the former Columbia schools music director, Uhl Sackman.

Public transportation

A public bus service, provided by MetroBus, arrives in the morning and evening in Columbia and Waterloo and transports people to the MetroLink station in East St. Louis.