National Historic Register properties in Decorah, Iowa

• Birdsall Lime Kiln
• Broadway-Phelps Park Historic District
• Broadway-Phelps Park Historic District
• Broadway-Phelps Park Historic District (Boundary Increase)
• Clarksville Diner
• Cooley-Whitney House
• Decorah Commercial Historic District
• Decorah East Side Elementary and Middle School
• Decorah Hospital
• Decorah Ice Cave
• Decorah Municipal Bathhouse and Swimming Pool
• Decorah Woolen Mill
• Ellsworth-Porter House
• Highlandville School
• Horn House
• Jacobson Farm
• Koren Library
• Locust School
• Luther College Campus Historic District
• Luther College Farm
• Miller, Norris, House
• Milwaukee and St. Paul Railway Combination Depot
• Painter-Bernatz Mill
• Steyer Bridge
• Steyer Opera House
• Ten Mile Creek Bridge
• Washington Prairie Methodist Church