The PLA was formed in 1985 and earned chapter status under the Lacrosse Foundation, predecessor of US Lacrosse, in 1992. Since that time, the PLA has grown into one of the largest and most successful chapters of US Lacrosse. In 1998, the United States Women's Lacrosse Association merged with and into US Lacrosse, and the USWLA's Philadelphia District, which supported and promoted women's lacrosse in the area, automatically became a part of the PLA. With this and other mergers, US Lacrosse and its chapters have helped consolidate numerous lacrosse constituencies and positioned America's truly native game to break through in the sports world of the 21st Century.
Lacrosse in the PLA's chapter area at all levels is thriving, dynamic and increasingly coordinated. The game is played at the youth level, in middle schools and high schools, at the college level, in post-collegiate clubs and, since 1986, professionally. Lacrosse and its celebrated history as the Creator's Game played by indigenous North Americans is also taught in physical education programs in lower, middle and upper schools in the state. In 1998, after making an impressive debut the previous year as an exhibition novelty, lacrosse became an official sport in the Keystone State Games—the annual summer sports festival that draws the finest youth and high school athletes in the Commonwealth to venues around Harrisburg for the chance to compete against the best in the state. Inclusion of lacrosse in the Keystone Games, which the PLA helped engineer, is just one of the many positive recent developments for the game in Pennsylvania. School boards, athletic directors, youth associations, indoor sports facilities and others are increasingly recognizing the growth and popularity of the "fastest game on two feet."