Erwinna (pronounced // ər-WIN-nə) is an unincorporated community in Tinicum Township, Bucks County, Pennsylvania, United States, with a zip code of 18920. It is located approximately 40 miles north of Center City Philadelphia and has an area code of 610.
It is named after Colonel Arthur Erwin (also "Irwin"), who was a leader in the Bucks County Militia. A concise biography of him has been created by the DAR Chapter bearing his name. Colonel Erwin is said to have supplied many of boats that were used by George Washington and the Continental Army to cross the Delaware on the night of December 25, 1776, en route to the Battle of Trenton the following morning.
- (letter from George Washington to Brig. General William Maxwell, Dec. 8, 1776
- (George Washington to Col. Arthur Erwin, Dec. 9, 1776
- "National Register Information System". National Register of Historic Places. National Park Service. 2010-07-09.
||Bridgeton Township, Nockamixon Township||Uhlerstown||Kingwood Township, New Jersey|
|Revere||Kingwood Township, New Jersey|
|Ottsville||Tinicum||Barbertown, New Jersey|