Walton Family Foundation Is State's Largest Nonprofit by Mark Friedman Posted 9/17/2001 12:00 am Updated 4 years ago The Walton Family Foundation topped the list of largest nonprofit organizations in the state with nearly $1 billion in assets. 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.