| Official Name: | Cottonwood Township |
| Settlement Type: | Township |
| Image Map1: | Map of Illinois highlighting Cumberland County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Cumberland County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Cumberland |
| Established Title: | Established |
| Established Date: | November 6, 1860 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 32.74 |
| Area Land Sq Mi: | 32.73 |
| Area Water Sq Mi: | 0.01 |
| Area Water Percent: | 0.04 |
| Population As Of: | 2020 |
| Population Total: | 485 |
| Population Density Sq Mi: | auto |
| Elevation M: | 196 |
| Elevation Ft: | 643 |
| Coordinates: | 39.35°N -103°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 62428, 62440, 62468, 62469 |
| Blank Name: | FIPS code |
| Blank Info: | 17-035-16587 |
Cottonwood Township is one of eight townships in Cumberland County, Illinois, USA. As of the 2020 census, its population was 485 and it contained 223 housing units.[1]
According to the 2021 census gazetteer files, Cottonwood Township has a total area of 32.74sqmi, of which 32.73sqmi (or 99.96%) is land and 0.01sqmi (or 0.04%) is water.[2] The Embarras River defines the township's eastern border.
The township contains these three cemeteries: Haggins, Hutton and Tippett.
As of the 2020 census there were 485 people, 156 households, and 94 families residing in the township. The population density was 14.81PD/sqmi. There were 223 housing units at an average density of 6.81/sqmi. The racial makeup of the township was 96.49% White, 0.00% African American, 0.21% Native American, 0.21% Asian, 0.00% Pacific Islander, 0.00% from other races, and 3.09% from two or more races. Hispanic or Latino of any race were 0.82% of the population.
There were 156 households, out of which 33.30% had children under the age of 18 living with them, 60.26% were married couples living together, 0.00% had a female householder with no spouse present, and 39.74% were non-families. 31.40% of all households were made up of individuals, and 12.80% had someone living alone who was 65 years of age or older. The average household size was 2.95 and the average family size was 3.60.
The township's age distribution consisted of 23.9% under the age of 18, 2.2% from 18 to 24, 16.9% from 25 to 44, 38.3% from 45 to 64, and 18.7% who were 65 years of age or older. The median age was 48.7 years. For every 100 females, there were 251.1 males. For every 100 females age 18 and over, there were 186.9 males.
The median income for a household in the township was $67,188, and the median income for a family was $96,855. Males had a median income of $32,344 versus $27,368 for females. The per capita income for the township was $31,765.No families and 13.0% of the population were below the poverty line, including none of those under age 18 and 46.5% of those age 65 or over.