Walton Family Foundation Is State's Richest Nonprofit by Alicia Stogner Posted 9/22/2003 12:00 am Updated 5 years ago The Walton Family Foundation Inc. in Bentonville continues to dominate the state's largest nonprofit organizations. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access stories older than 15 days. Purchase Now Already have archive access? Login to view this article.