National Historic Register properties in Boulder, Colorado

• Arnett-Fullen House
• Barker, Hannah, House
• Boulder County Courthouse
• Boulder County Courthouse
• Boulder County Poor Farm
• Boulder Creek Bridge
• Carnegie Library
• Chautauqua Auditorium
• Colorado Chautauqua
• Columbia Cemetery
• Downtown Boulder Historic District
• First Baptist Church of Boulder
• Fox Mine Office
• Fox Stone Barn
• Highland School
• Holmes, David Hull, House
• Hotel Boulderado
• McKenzie Well
• Mount St. Gertrude Academy
• Norlin Quadrangle Historic District
• Northern Colorado Power Company Substation
• Squires-Tourtellot House
• Swedish Evangelical Lutheran Church of Ryssby
• US Post Office-Boulder Main
• Walker Ranch Historic District
• Walker Ranch Historic District (Boundary Increase)
• Weiser, Martha, House
• Williams, Wilbur, House
• Woodward-Baird House