Gibson Township was formed from the north part of Clifford Township on November 24, 1813.[3] The new township was named for district president judge Honorable John B. Gibson.[4]
The Gibson Village Historic District consists of about 32 buildings located at routes 848 and 547.[5]
According to the United States Census Bureau, the township has a total area of 32.14 square miles (83.2 km2), of which 31.9 square miles (83 km2) is land and 0.24 square miles (0.62 km2) (0.75%) is water.
As of the census[17] of 2010, there were 1,221 people, 481 households, and 351 families residing in the township. The population density was 38.3 people per square mile (14.8 people/km2). There were 644 housing units at an average density of 20.2 per square mile (7.8/km2). The racial makeup of the township was 97.8% White, 0.4% African American, 0.1% Asian, 0.2% from other races, and 1.5% from two or more races. Hispanic or Latino of any race were 2.2% of the population.
There were 481 households, out of which 27.4% had children under the age of 18 living with them, 61.7% were married couples living together, 5.4% had a female householder with no husband present, and 27% were non-families. 22.9% of all households were made up of individuals, and 10.8% had someone living alone who was 65 years of age or older. The average household size was 2.54 and the average family size was 2.94.
In the township the population was spread out, with 21.7% under the age of 18, 61.3% from 18 to 64, and 17% who were 65 years of age or older. The median age was 46 years.
The median income for a household in the township was $46,154, and the median income for a family was $51,146. Males had a median income of $43,750 versus $31,359 for females. The per capita income for the township was $20,202. About 7.2% of families and 10.5% of the population were below the poverty line, including 14.5% of those under age 18 and 11.1% of those age 65 or over.