| Official Name: | Kaskaskia Township |
| Settlement Type: | Township |
| Image Map1: | Map of Illinois highlighting Fayette County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Fayette County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Fayette |
| Established Title: | Established |
| Established Date: | November 9, 1859 |
| Area Total Sq Mi: | 34.34 |
| Area Land Sq Mi: | 34.30 |
| Area Water Sq Mi: | 0.04 |
| Area Water Percent: | 0.12 |
| Population As Of: | 2020 |
| Population Total: | 517 |
| Population Density Sq Mi: | auto |
| Elevation M: | 157 |
| Elevation Ft: | 515 |
| Coordinates: | 38.8658°N -89.0869°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 62471, 62885, 62892 |
| Blank Name: | FIPS code |
| Blank Info: | 17-051-39116 |
| Unit Pref: | Imperial |
Kaskaskia Township is one of twenty townships in Fayette County, Illinois, USA. As of the 2020 census, its population was 517 and it contained 241 housing units.[1]
According to the 2021 census gazetteer files, Kaskaskia Township has a total area of 34.34sqmi, of which 34.3sqmi (or 99.88%) is land and 0.04sqmi (or 0.12%) is water.[2]
The township contains these five cemeteries: Britton, Farmer, Heckethorn, Lee and McConnell.
As of the 2020 census there were 517 people, 170 households, and 84 families residing in the township. The population density was 15.05PD/sqmi. There were 241 housing units at an average density of 7.02/sqmi. The racial makeup of the township was 97.49% White, 0.39% African American, 0.19% Native American, 0.00% Asian, 0.00% Pacific Islander, 0.39% from other races, and 1.55% from two or more races. Hispanic or Latino of any race were 0.58% of the population.
There were 170 households, out of which 16.50% had children under the age of 18 living with them, 41.18% were married couples living together, 3.53% had a female householder with no spouse present, and 50.59% were non-families. 35.90% of all households were made up of individuals, and 17.10% had someone living alone who was 65 years of age or older. The average household size was 2.18 and the average family size was 3.04.
The township's age distribution consisted of 18.9% under the age of 18, 3.8% from 18 to 24, 28.4% from 25 to 44, 32.4% from 45 to 64, and 16.5% who were 65 years of age or older. The median age was 43.4 years. For every 100 females, there were 113.9 males. For every 100 females age 18 and over, there were 120.6 males.
The median income for a household in the township was $48,056, and the median income for a family was $60,000. Males had a median income of $50,682 versus $25,000 for females. The per capita income for the township was $25,854. About 17.9% of families and 26.8% of the population were below the poverty line, including 27.1% of those under age 18 and 24.6% of those age 65 or over.