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is a borough in York County, Pennsylvania, 19 miles (31 km) southwest of York and 54 miles (87 km) north-northwest of Baltimore, Maryland.
The town is situated in a productive agricultural region. The population was 14,535 at the 2000 census. The borough is served by a 717 area code and the Zip Codes of 17331-34. Hanover is named after the German city of Hannover.
Hanover is located at (39.807297, -76.984747). Hanover is five miles (8 km) north of the Mason-Dixon line.
According to the United States Census Bureau, the borough has a total area of 9.5 km² (3.7 mi²), all land.