Bryn Mawr (pronounced ; from Welsh for "great hill") is a
census-designated place (CDP) in Radnor Township, Delaware County, Pennsylvania,
Haverford Township, Delaware County, Pennsylvania and
Lower Merion Township, Montgomery County, Pennsylvania, just west of
Philadelphia along Lancaster Avenue (
US-30) and the border with
Delaware County. Bryn Mawr is located toward the center of what is known as the
Main Line, a group of affluent Philadelphia suburban villages stretching from the city limits to
Malvern. As of the
2010 census, it had a population of 3,779. Bryn Mawr is home to
Bryn Mawr College.