See also: Hanover Township, Pennsylvania (disambiguation). Hanover is a borough in York County, Pennsylvania, 19 miles (31 km) southwest of York and 54 miles (87 km) north-northwest of Baltimore, Maryland and is 5 miles (8.0 km) north of the Mason-Dixon line. The town is situated in a productive agricultural region. The population was 15,289 at the 2010 census.
Horsepower (hp) is a unit of measurement of power (the rate at which work is done).
horsepower (countable and uncountable, plural horsepowers or 1  ) A non-metric unit of power (symbol hp) with various definitions, for different applications. 2  A metric horsepower (symbol often PS from the German abbreviation), approximately equal to 735.5 watts. 3  Strength political horsepower.