The Minnehaha station was one of two post offices destroyed.
At least 20 sorting machines could be decommissioned soon, a lawsuit claims.
"To avoid even the appearance of any impact on election mail," the postmaster general says any further operational changes will be postponed
Minnesota Secretary of State Steve Simon: 'Don't wait until October' to request ballot
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.
The 56-year-old is facing charges of 1st-degree assault.
Operations have been moved to Belle Plain until the office reopens.