Horsham Township is a home rule municipality in Montgomery County, Pennsylvania, United States, 10 miles north of downtown Philadelphia. The township, incorporated in 1717, is one of the oldest original municipalities in Montgomery County. Although it retains the word "Township" in its official name, it has been governed by a Home Rule Charter since 1975 and is therefore not subject to the Pennsylvania Township Code. The population was 26,147 at the 2010 census. Horsham Township is made up of several community areas including Horsham (19044) and portions of the Hatboro (19040), Ambler (19002), Chalfont (18914) and North Wales (19454) ZIP codes.
