National Historic Register properties in Washington county/parish, Ohio

• Waernicke-Hille House And Store (Archer's Fork)
• Shinn Covered Bridge (Bartlett)
• Ames, Charles Rice, House (Belpre)
• Spencer's Landing (Belpre)
• Stone, Capt. Jonathan, House (Belpre)
• Coal Run Historic District (Coal Run)
• Mason House (Coal Run)
• Hune Covered Bridge (Dart)
• Root Covered Bridge (Decaturville)
• Curtis, Walter, House (Little Hocking)
• Sawyer-Curtis House (Little Hocking)
• Sprague, Jonathan, House (Lowell)
• Vaugh-Stacy-Evans Farm Historic District (Lowell)
• Barker, Col. Joseph, House (Marietta)
• Becker Lumber and Manufacturing Company (Marietta)
• Cisler Terrace (Marietta)
• Erwin Hall, Marietta College (Marietta)
• First Unitarian Church Of Marietta (Marietta)
• Harmar Historic District (Marietta)
• Harmar Historic District (Boundary Increase) (Marietta)
• Hildreth Covered Bridge (Marietta)
• Kaiser, John, House (Marietta)
• Marietta Historic District (Marietta)
• Marietta Historic District (Boundary Decrease) (Marietta)
• Marietta Historic District (Boundary Increase) (Marietta)
• MISSISSIPPI III (Marietta)
• Mound Cemetery Mound (Marietta)
• Ohio Company Land Office (Marietta)
• Putnam, Rufus, House (Marietta)
• Rinard Covered Bridge (Marietta)
• St. Mary's School, Old (Marietta)
• Wilcox-Mills House (Marietta)
• W.P. SNYDER, JR. (steamboat) (Marietta)
• Barker, Judge Joseph, Jr., House (Newport)
• Hune, William, Farm (Reno)
• Bell Covered Bridge (Vincent)
• Deming, Col. Simeon, House (Watertown)
• Harra Covered Bridge (Watertown)
• Watertown Historic District (Watertown)