Towamensing Township is in southeastern Carbon County and is bordered by Monroe County to the east. According to the United States Census Bureau, the township has a total area of, of which is land and, or 6.15%, is water. It is drained by Aquashicola Creek and Pohopoco Creek into the Lehigh River. The township's northern boundary runs along the base of Call Mountain. Its villages include Forest Inn, Jonesville, Stemlersville, and Trachsville. U.S. Route 209 crosses it east-to-west on the south side of Beltzville Lake.
The township has a humid continental climate and the hardiness zone is 6a. Average monthly temperatures in Forest Inn range from in 27.0 °F in January to 71.2 °F in July.
Demographics
As of the census of 2000, there were 3,475 people, 1,275 households, and 1,003 families residing in the township. The population density was 128.6 people per square mile. There were 1,458 housing units at an average density of 54.0/sq mi. The racial makeup of the township was 98.65% White, 0.43% African American, 0.09% Native American, 0.23% Asian, 0.17% from other races, and 0.43% from two or more races. Hispanic or Latino of any race were 1.24% of the population. There were 1,275 households, out of which 34.4% had children under the age of 18 living with them, 69.3% were married couplesliving together, 5.2% had a female householder with no husband present, and 21.3% were non-families. 15.8% of all households were made up of individuals, and 6.2% had someone living alone who was 65 years of age or older. The average household size was 2.71 and the average family size was 3.03. In the township the population was spread out, with 24.1% under the age of 18, 5.6% from 18 to 24, 30.9% from 25 to 44, 26.1% from 45 to 64, and 13.3% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 100.4 males. For every 100 females age 18 and over, there were 100.1 males. The median income for a household in the township was $49,524, and the median income for a family was $51,135. Males had a median income of $36,638 versus $21,103 for females. The per capita income for the township was $19,629. About 4.5% of families and 4.7% of the population were below the poverty line, including 5.6% of those under age 18 and 6.7% of those age 65 or over.
