High Quality Content by WIKIPEDIA articles! The following is a list of covered bridges in Lancaster County, Pennsylvania USA. Lancaster County has the most covered bridges in Pennsylvania with 29 covered bridges. Parke County, Indiana has the most covered bridges of any county in the United States with 31 covered bridges All of the covered bridges in Lancaster County, except for the Hunsecker`s Mill Covered Bridge, Kurtz`s Mill Covered Bridge, and the Willow Hill Covered Bridge, are listed on the National Register of Historic Places. Most have been on the list since 1980. The WGCB numbering prefix for the county is 38-36