- 1Oregon State FairSalem, OregonEst. 1861August
Every year, Salem hosts the Oregon State Fair, which is the state's premier annual event, drawing hundreds of thousands of visitors to the Willamette Valley capital for eleven days of world-class entertainment, agriculture, and celebration. Dating to 1861, it ranks among Oregon's oldest agricultural fairs.
- 2Lane County FairEugene, OregonEst. 1884July
The Lane County Fair, based in Eugene, is a five-day Willamette Valley celebration drawing southern valley families for livestock competition, entertainment, and community gathering each July.
- 3Washington County FairHillsboro, OregonEst. 1951July
Hillsboro is home to the Washington County Fair, which is one of Oregon's largest county fairs, drawing hundreds of thousands of visitors from the Portland metro for ten days of livestock competition, entertainment, and family fun. The fair began in 1951 and has remained a community tradition ever since.