New Bethlehem is a borough in Clarion County, Pennsylvania, United States. The population was 979 at the 2020 census. The borough is situated at the southwestern corner of the Pennsylvania Wilds Conservation Landscape. Its main street, PA Route 28-66, is a major thoroughfare between the Pittsburgh metropolitan region and northce…New Bethlehem is a borough in Clarion County, Pennsylvania, United States. The population was 979 at the 2020 census. The borough is situated at the southwestern corner of the Pennsylvania Wilds Conservation Landscape. Its main street, PA Route 28-66, is a major thoroughfare between the Pittsburgh metropolitan region and northcentral Pennsylvania. The designated tourism agency for Clarion County is Discover Clarion County