The Minnehaha station was one of two post offices destroyed.
"To avoid even the appearance of any impact on election mail," the postmaster general says any further operational changes will be postponed
USPS is looking for a temporary site while it rebuilds its post office that was burned in the riots.
Three Minneapolis post offices burned during the recent civil unrest.
Residents of Kerkhoven will have to travel three miles to their nearest post office.
The location's services will be temporarily relocated on Monday.
Operations have been moved to Belle Plain until the office reopens.