where is orwigsburg, pa
Orwigsburg, Pennsylvania. Orwigsburg is a borough in Schuylkill County, Pennsylvania, United States. Named for its founder, Peter Orwig, from West Brunswick Township in 1823. The population was 3,061 at the 2013 census. Orwigsburg was the original county seat until the seat was moved to Pottsville in 1851.