North Strabane Township is a township in Washington County, Pennsylvania, United States. The population was 15,691 at the 2020 census. The township is named after the town of Strabane in County Tyrone, Northern Ireland. The township borders the borough of Canonsburg, Pennsylvania to the north. North Strabane is a part of C…North Strabane Township is a township in Washington County, Pennsylvania, United States. The population was 15,691 at the 2020 census. The township is named after the town of Strabane in County Tyrone, Northern Ireland. The township borders the borough of Canonsburg, Pennsylvania to the north. North Strabane is a part of Canon-McMillan School District.