| Official Name: | Berlin Township |
| Settlement Type: | Township |
| Image Map1: | Map of Illinois highlighting Bureau County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Bureau County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Bureau |
| Established Title: | Established |
| Established Date: | November 6, 1849 |
| Area Total Sq Mi: | 36.56 |
| Area Land Sq Mi: | 36.56 |
| Area Water Sq Mi: | 0 |
| Area Water Percent: | 0 |
| Population As Of: | 2020 |
| Population Total: | 659 |
| Population Density Sq Mi: | auto |
| Elevation M: | 224 |
| Elevation Ft: | 735 |
| Coordinates: | 41.4464°N -89.3358°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 61312, 61323, 61330, 61337, 61356 |
| Blank Name: | FIPS code |
| Blank Info: | 17-011-05430 |
| Unit Pref: | Imperial |
Berlin Township is one of twenty-five townships in Bureau County, Illinois, United States. As of the census, its population was 659 and it contained 297 housing units.[1]
According to the census, the township has a total area of, all land.[2]
The township contains Malden Cemetery.
As of the 2020 census there were 659 people, 289 households, and 200 families residing in the township. The population density was 18.03PD/sqmi. There were 297 housing units at an average density of 8.12/sqmi. The racial makeup of the township was 94.23% White, 1.06% African American, 0.30% Native American, 0.00% Asian, 0.00% Pacific Islander, 1.97% from other races, and 2.43% from two or more races. Hispanic or Latino of any race were 5.01% of the population.
There were 289 households, out of which 33.90% had children under the age of 18 living with them, 53.29% were married couples living together, 10.38% had a female householder with no spouse present, and 30.80% were non-families. 24.90% 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 2.51 and the average family size was 2.89.
The township's age distribution consisted of 24.4% under the age of 18, 6.7% from 18 to 24, 26.8% from 25 to 44, 25% from 45 to 64, and 16.9% who were 65 years of age or older. The median age was 37.2 years. For every 100 females, there were 96.2 males. For every 100 females age 18 and over, there were 114.5 males.
The median income for a household in the township was $66,806, and the median income for a family was $76,964. Males had a median income of $51,250 versus $18,958 for females. The per capita income for the township was $28,651. About 15.5% of families and 18.0% of the population were below the poverty line, including 37.3% of those under age 18 and 6.5% of those age 65 or over.