American Association of Retired Persons (AARP), oldest and largest advocacy group for senior citizens in the United States. AARP is a private, nonprofit organization dedicated to helping older Americans achieve lives of independence, dignity, and purpose. AARP's motto is: “To Serve, Not to Be Served.”
AARP, founded in 1958 by Dr. Ethel Percy Andrus, a retired educator, has more than 30 million members and more than 4000 chapters throughout the United States. Its headquarters are in Washington, D.C. Membership is open to all persons over the age of 50, whether working or retired