The Duluth Transit Authority (DTA) is the public transit operator in the Twin Ports region of Minnesota and Wisconsin. DTA operates 15 bus routes throughout the region, serving Duluth, Minnesota; Superior, Wisconsin, and their surrounding suburbs. DTA was founded in 1969 by an act of the Minnesota Legislature, and as of 2024, provides over 2.3 million passenger trips per year. In 2009, the DTA was named Transit System of the Year by the Minnesota Public Transit Association.