Girl Scouts of Southwest Indiana was organized as Raintree Council on September 10, 1957. Girl Scouts of the USA officially chartered it, in March 1958, to provide Girl Scout program in Vanderburgh, Warrick, Spencer, Perry, Posey, and Gibson Counties. In November 1961, White County, Illinois, joined Raintree Council. In September 1962, the council officially extended its jurisdiction to include all of the counties presently being served, adding Martin, Pike, Daviess, and Dubois Counties in Indiana. In 2007, White County, Illinois transferred to Shagbark Council, and in 2008, Knox County, in Indiana, was added to Raintree Council. In June, 2010, Raintree Council’s corporate name was changed to Girl Scouts of Southwest Indiana.
In Girl Scouts, girls discover the fun, friendship, and power of girls together. Through enriching experiences, such as extraordinary field trips, sports skill-building clinics, community service projects, cultural exchanges, and environmental stewardships, girls grow courageous and strong. Girl Scouting helps girls develop their full individual potential; relate to others with increasing understanding, skill, and respect; develop values to guide their actions and provide the foundation for sound decision-making; and contribute to the improvement of society through their abilities, leadership skills, and cooperation with others.