National Historic Register properties in Union county/parish, South Carolina

• Buffalo Mill Historic District (Buffalo)
• Hillside (Carlisle)
• Woodland Plantation (Carlisle)
• Musgrove's Mill Historic Battle Site (Cross Anchor)
• Padgett's Creek Baptist Church (Cross Keys)
• McWhirter House (Jonesville)
• Means House (Jonesville)
• Battle of Blackstock's Historic Site (Union)
• Cedar Bluff (Union)
• Clinton Chapel AME Zion Church (Union)
• Corinth Baptist Church (Union)
• Cross Keys House (Union)
• Culp House (Union)
• Dawkins, Judge Thomas, House (Union)
• East Main Street-Douglass Heights Historic District (Union)
• Episcopal Church of the Nativity (Union)
• Fair Forest Hotel (Union)
• Gist, Nathaniel, House (Union)
• Herndon Terrace (Union)
• Jeter, Gov. Thomas B., House (Union)
• Meng House (Union)
• Merridun (Union)
• Pinckneyville (Union)
• Rose Hill (Union)
• Sims High School (Union)
• South Street-South Church Street Historic District (Union)
• South Street-South Church Street Historic District (Boundary Increase) (Union)
• Union Community Hospital (Union)
• Union County Jail (Union)
• Union Downtown Historic District (Union)
• Union Downtown Historic District (Boundary Increase) (Union)
• Union High School-Main Street Grammar School (Union)
• Central Graded School (Unlon)