Logan Township is located in southern Clinton County and is bordered to the south by Centre County. According to the United States Census Bureau, the township has a total area of 24.2 square miles (62.8 km2), of which 24.2 square miles (62.6 km2) is land and 0.08 square miles (0.2 km2), or 0.32%, is water.[4]
There were 265 households, out of which 35.8% had children under the age of eighteen living with them; 69.4% were married couples living together, 7.5% had a female householder with no husband present, and 18.5% were non-families. 15.1% of all households were made up of individuals, and 9.1% had someone living alone who was sixty-five years of age or older.
The average household size was 2.92 and the average family size was 3.20.
Within the township, the population was spread out, with 28.8% of residents who were under the age of eighteen, 9.1% who were aged eighteen to twenty-four, 27.0% who were aged twenty-five to forty-four, 20.4% from forty-five to sixty-four, and 14.6% who were sixty-five years of age or older. The median age was thirty-six years.
For every one hundred females, there were 100.8 males. For every one hundred females who were aged eighteen or older, there were 99.3 males.
The median income for a household in the township was $31,389, and the median income for a family was $34,688. Males had a median income of $28,250 compared with that of $19,167 for females.
Approximately 7.1% of families and 11.9% of the population were living below the poverty line, including 19.4% of those who were under the age of eighteen and 1.8% of those who were aged sixty-five or older.