I’ve read about underreporting of occupancy, to get a cheaper loan. Getting the Assessor records is the only way to know for sure.
SD had many more speculators than other parts of the country. If the average for the country is 35%, then Omaha NE is 5%, Kansas City is 5%, and SD and Phoenix and FL are 40% or more. Again, we need assessor records to be sure. You ask the Assessor for a list of homeowners whose mailing address differs from the property address. Some County Assessors provide it – not sure if ours does so.