Oley Township is a township in Berks County, Pennsylvania, United States. As of the 2010 census, the township had a population of 3,620. Oley Township was originally formed in 1740 as a part of Philadelphia County, before Berks County was formed in 1752. The entire township was listed as a historic district by the National Register of Historic Pla…Oley Township is a township in Berks County, Pennsylvania, United States. As of the 2010 census, the township had a population of 3,620. Oley Township was originally formed in 1740 as a part of Philadelphia County, before Berks County was formed in 1752. The entire township was listed as a historic district by the National Register of Historic Places in 1983. Oley is a Native American name purported to mean "a hollow". Daniel Boone was born in Oley Township November 2, 1734.