The Broadway–Phelps Park Historic District is located in Decorah, Iowa, United States.

The original boundaries of the historic district is composed of seven blocks of a residential area and the city's oldest park.

Contributing properties include five churches, three government buildings (including the Winneshiek County Courthouse), a museum, brick kiln, a carriage house, and 36 private residences.

Contributing sites include the city park square and the river bluff.

[3] The Ellsworth-Porter House is individually listed on the National Register of Historic Places.