The township is in the north of the county with Lake Michigan to the west, Van Buren County to the north, Coloma Charter Township to the east, Bainbridge Township to the southeast, and Benton Charter Township to the south.
Charles Lamb and his wife came to the area from Vermont in 1839 to become the first white settler. The township was officially organized on March 25, 1846.
There are no incorporated municipalities within the township. The unincorporated communities of Riverside and Lake Michigan Beach (also known as "Hagar Shores") are within the township.
The Paw Paw River runs through the township.
There were 1,639 households out of which 29.1% had children under the age of 18 living with them, 53.5% were married couples living together, 8.8% had a female householder with no husband present, and 33.8% were non-families. 27.5% of all households were made up of individuals and 9.0% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 2.94.
In the township the population was spread out with 23.8% under the age of 18, 8.1% from 18 to 24, 30.4% from 25 to 44, 25.2% from 45 to 64, and 12.6% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 97.5 males. For every 100 females age 18 and over, there were 97.1 males.
The median income for a household in the township was $38,614, and the median income for a family was $47,768. Males had a median income of $34,890 versus $23,924 for females. The per capita income for the township was $19,710. About 6.5% of families and 8.0% of the population were below the poverty line, including 6.1% of those under age 18 and 4.6% of those age 65 or over.