The Olathe Farmers' Market begins Wednesdays on June 3 from 3:00pm-until sold. The Olathe Farmers' Market on Wednesdays is held at 200 W Santa Fe Olathe, KS 66061. The Olathe Farmers' Market will be held Wednesdays from June 3 until September 30. The Olathe Farmers' Market is on Saturdays from April 25 through October 10 at Mahaffie Stagecoach Stop and Farm 1200 Kansas City Road, Olathe, KS 66061. For details click: www.olatheks.org/ParksRec/Quicklinks/Farmers.