Kersey is an unincorporated community and census-designated place in Fox Township, Elk County, Pennsylvania, United States. As of the 2020 census the population was 797. The first permanent settlers of the county arrived in 1810 and founded Centreville at the headwaters of Little Toby Creek. Later that year, William Kersey built a gristmill and/or sawmill t…Kersey is an unincorporated community and census-designated place in Fox Township, Elk County, Pennsylvania, United States. As of the 2020 census the population was 797. The first permanent settlers of the county arrived in 1810 and founded Centreville at the headwaters of Little Toby Creek. Later that year, William Kersey built a gristmill and/or sawmill there, and the settlement was renamed "Kersey", though early sources sometimes refer to it as "Kersey's". At the time, the area was part of Clearfield County, as Elk County had not yet been formed. Early industries in the community were lumber and coal.