Minn. Stat. § 365A.10: COORDINATION OF DISTRICTS.

If a county establishes a subordinate service district in part of a town under enabling law for counties, a town may not establish a subordinate service district to provide the same service in the part of the town served by the county. If a town establishes a subordinate service district in part of the town under this chapter or other law, a county may not establish a subordinate service district to provide the same service in the part of the town served by the town.