Delta is a borough in York County, Pennsylvania, United States, and one of the southernmost communities in Pennsylvania. The population was 728 at the 2010 census. It is served by the South Eastern School District which provides a public education. According to the United States Census Bureau, the borough has a total area of 0.3 square miles (0.78 km2), all of it land.
History and landmarks:
Delta is at the heart of the Peach Bottom Slate Region. At the Crystal Palace Exposition of 1850, Peach Bottom slate was judged the finest in the World. Most of Delta's houses still have beautiful slate roofs, and remnants of the original blue-black slate sidewalks still exist throughout the borough. Until 1978, Delta was served by the Maryland and Pennsylvania Railroad at milepost 43.8. The slate quarry was a major freight customer until 1971. The Rehoboth Welsh Chapel in Delta is a non-denominational Christian church that holds services in Welsh and English. Its Welsh choir has won a prize at the highly competitive Royal National Eisteddfod of Wales. The Delta Historic District was listed on the National Register of Historic Places in 1983.