Bethlehem is a city in
Lehigh and
Northampton counties in the
Lehigh Valley region of the eastern portion of the
U.S. state of
Pennsylvania. As of the 2010 census, the city had a total population of 74,982, making it the seventh largest city in Pennsylvania, after
Philadelphia,
Pittsburgh,
Allentown,
Erie,
Reading, and
Scranton. Of this, 55,639 were in Northampton County, and 19,343 were in Lehigh County.