| Official Name: | Savanna Township |
| Settlement Type: | Township |
| Image Map1: | Map of Illinois highlighting Carroll County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Carroll County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Carroll |
| Leader Title: | Supervisor |
| Leader Name: | Ruth Carey |
| Area Total Sq Mi: | 20.92 |
| Area Land Sq Mi: | 13.35 |
| Area Water Sq Mi: | 7.57 |
| Area Water Percent: | 36.19 |
| Population As Of: | 2020 |
| Population Total: | 3432 |
| Population Density Sq Mi: | auto |
| Elevation M: | 180 |
| Elevation Ft: | 591 |
| Coordinates: | 42.0689°N -90.1275°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 61074 61285 |
| Blank Name: | FIPS code |
| Blank Info: | 17-015-67834 |
| Unit Pref: | Imperial |
Savanna Township is one of twelve townships in Carroll County, Illinois, USA. As of the 2020 census, its population was 3,432 and it contained 1,919 housing units.[1]
According to the 2010 census, the township has a total area of, of which (or 63.81%) is land and (or 36.19%) is water.[2]
(This list is based on USGS data and may include former settlements.)
The township contains these two cemeteries: Saint Johns and Savanna.
As of the 2020 census there were 3,432 people, 1,780 households, and 855 families residing in the township. The population density was 164.05PD/sqmi. There were 1,919 housing units at an average density of 91.73/sqmi. The racial makeup of the township was 88.69% White, 1.66% African American, 0.52% Native American, 0.17% Asian, 0.06% Pacific Islander, 2.97% from other races, and 5.91% from two or more races. Hispanic or Latino of any race were 8.07% of the population.
There were 1,780 households, out of which 18.60% had children under the age of 18 living with them, 40.45% were married couples living together, 6.52% had a female householder with no spouse present, and 51.97% were non-families. 45.70% of all households were made up of individuals, and 21.20% had someone living alone who was 65 years of age or older. The average household size was 1.91 and the average family size was 2.73.
The township's age distribution consisted of 18.8% under the age of 18, 3.6% from 18 to 24, 24.3% from 25 to 44, 27.8% from 45 to 64, and 25.5% who were 65 years of age or older. The median age was 48.5 years. For every 100 females, there were 83.4 males. For every 100 females age 18 and over, there were 86.0 males.
The median income for a household in the township was $32,750, and the median income for a family was $53,205. Males had a median income of $41,230 versus $16,295 for females. The per capita income for the township was $27,342. About 13.6% of families and 13.1% of the population were below the poverty line, including 5.1% of those under age 18 and 15.3% of those age 65 or over.