- HISTORIC SITES
- Fort Walla Walla Historic District
- George Ludwigs House
- John F. Boyer House
- Kirkman House
- Miles C. Moore House
- Norman Francis Butler House
- Osterman House
- Small-Elliott House
- Waitsburg Historic District
- Whitman Mission National Historic Site
- William Perry Bruce House
Photo: Norman Francis Butler House, ca. 1882, 207 East Cherry Street, Walla Walla, Washington. Listed on the National Register of Historic Places in 1992. Photographed by User:Phbludwig (own work), 2012, [cc-by-3.0 (creativecommons.org/licenses/by/3.0)], via Wikimedia Commons, accessed November, 2014.
The Walla Walla County Courthouse is located at 315 West Main Street, Walla Walla, WA 99362; phone: 509-524-2780.
Native Americans (Umatilla, Walla Walla, and Cayuse Tribes) were the first people in recorded history to live in Walla Walla County. Lewis and Clark explored the area between 1804 and 1806. Missionary settlements were established around 1836. The City of Walla Walla was settled in 1859 and became the County Seat on November 7, 1859. The County and its cities contain numerous historic and cultural resources that reflect the unique heritage of this area. 
- Walla Walla County Community Development Department, various preparers, Integrated Comprehensive Plan and EIS, Volume I: Comprehensive Plan, update, 2007 & 2009, www.wwjcda, accessed November, 2014.