At the time of his death in 1848, Astor was the wealthiest person in the United States, leaving an estate estimated to be worth at least $20 million.
U vreme njegove smrti 1848, Astor je bio najbogatiji čovek u Sjedinjenim Državama, ostavivši imovinu čija se vrednost procenjuje na najmanje 20 miliona tadašnjih dolara.