| Official Name: | DeKalb Township |
| Settlement Type: | Township |
| Unit Pref: | Imperial |
| Image Map1: | Dekalb County Illinois.png |
| Mapsize1: | 150px |
| Map Caption1: | DeKalb County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | DeKalb |
| Leader Title: | Supervisor |
| Leader Name: | Mary Hess [1] |
| Leader Title1: | Highway Commissioner |
| Leader Name1: | Craig Smith |
| Leader Title2: | Assessor |
| Leader Name2: | Rich Dyer |
| Leader Title3: | Town Clerk |
| Leader Name3: | Andrew Tillotson |
| Established Title: | Established |
| Established Date: | November 20, 1850 |
| Area Total Sq Mi: | 35.32 |
| Area Land Sq Mi: | 35.07 |
| Area Water Sq Mi: | 0.24 |
| Area Water Percent: | 0.69 |
| Population As Of: | 2020 |
| Population Total: | 42667 |
| Population Density Sq Mi: | auto |
| Elevation M: | 264 |
| Elevation Ft: | 866 |
| Coordinates: | 41.9369°N -88.7722°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 60111, 60115, 60150, 60178 |
| Blank Name: | FIPS code |
| Blank Info: | 17-037-19174 |
DeKalb Township is one of nineteen townships in DeKalb County, Illinois, USA. As of the 2020 census, its population was 42,667 and it contained 18,004 housing units.[2] DeKalb Township was originally named Orange Township, but was renamed on November 20, 1850.
According to the 2021 census gazetteer files, DeKalb Township has a total area of 35.32sqmi, of which 35.07sqmi (or 99.31%) is land and 0.24sqmi (or 0.69%) is water.[3]
As of the 2020 census there were 42,677 people, 17,138 households, and 8,391 families residing in the township. The population density was 1208.43PD/sqmi. There were 18,004 housing units at an average density of 509.8/sqmi. The racial makeup of the township was 58.85% White, 18.09% African American, 0.78% Native American, 3.89% Asian, 0.04% Pacific Islander, 8.24% from other races, and 10.11% from two or more races. Hispanic or Latino of any race were 18.12% of the population.
There were 17,138 households, out of which 25.50% had children under the age of 18 living with them, 31.86% were married couples living together, 13.20% had a female householder with no spouse present, and 51.04% were non-families. 35.80% of all households were made up of individuals, and 7.90% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 3.20.
The township's age distribution consisted of 18.4% under the age of 18, 30.2% from 18 to 24, 24.6% from 25 to 44, 17.3% from 45 to 64, and 9.5% who were 65 years of age or older. The median age was 25.6 years. For every 100 females, there were 96.7 males. For every 100 females age 18 and over, there were 98.2 males.
The median income for a household in the township was $43,783, and the median income for a family was $66,530. Males had a median income of $32,492 versus $19,099 for females. The per capita income for the township was $24,956. About 16.7% of families and 25.7% of the population were below the poverty line, including 32.8% of those under age 18 and 6.2% of those age 65 or over.