Across all the websites hosting 1940 census records, a total of 24 states now have free, searchable name indexes for this census.

FamilySearch has released two more searchable state indexes, Oklahoma and South Dakota. All the states searchable on FamilySearch and its volunteer 1940 Census Community Project partners findmypast.com and Archives.com are:

• Alaska
• Arizona
• Colorado
• Delaware
• Florida
• Hawaii
• Idaho
• Kansas
• Louisiana
• Mississippi
• Montana
• Nevada
• New Hampshire
• Oklahoma
• Oregon
• South Dakota
• Utah
• Vermont
• Virginia
• Wyoming

On Ancestry.com, Delaware, Maine, Nevada, New York and Washington DC are searchable by name.

MyHeritage.com has Rhode Island and part of New York indexed.