National Historic Register properties in Armstrong county/parish, Pennsylvania

• Drake Log Cabin (Apollo)
• Bradys Bend Iron Company Furnaces (Bradys Bend)
• St. Stephen's Church (Bradys Bend)
• St. Patrick's Roman Catholic Church (Cowansville)
• Marshall, Thomas, House (Dayton)
• Bridge between Madison and Mahoning Townships (Deanville)
• Ford City Armory (Ford City)
• Allegheny River Locka and Dam No. 5 (Freeport)
• Allegheny River Lock and Dam No. 6 (Freeport)
• Allegheny River Lock and Dam No. 7 (Kittanning)
• Armstrong County Courthouse and Jail (Kittanning)
• Kittanning Passenger Station and Freight Depot (Kittanning)
• Colwell Cut Viaduct (Seminole)
• Allegheny River Lock and Dam No.8 (Templeton)
• Allegheny River Lock and Dam No. 9 (Widnoon)