Wynnefield is named for Thomas Wynne (1627-1692 who immigrated from Caerwys, North Wales and became the personal physician to William Penn. Thomas Wynne was one of a large group of Quakers who settled Philadelphia. His family house, Wynnestay, remains standing in Wynnefield on Woodbine Avenue. Today's Wynnefield is one of Philadelphia's most widely recognized neighborhood names. The neighborhood is known for its many beautiful single homes, its active community organization, and its racial diversity. A portion of St. Joseph's University is located within the boundaries of this neighborhood, and commercial development exists in three areas: on City Avenue, along 54th Street, and near the intersection of Bryn Mawr and Wynnefield Avenues. Wynnefield is defined by City Avenue and Fairmount Park, and the Bala Golf Club and Cardinal Avenue. It's population is about 16,000. The value of single family homes is above the norm for West Philadelphia in all sections of Wynnefield, but there is considerable variation in housing values within this diverse neighborhood. Residential development is greater in the row home vicinity of 54th & Berks than in the area near City Avenue where large, stately detached homes exist similar to those in the smaller adjoining neighborhoods of Overbrook Farms and Green Hill Farms. Wynnefield is a highly desirable place to live in Philadelphia.