Pumpkin Patches & Halloween Attractions in Puget Sound, WA

From Whatcom County and the Fraser Valley down to Olympia, Puget Sound has the largest cluster of pumpkin patches on the map, most of them family farms. The biggest concentrations are in the Snohomish and Snoqualmie valleys (Snohomish, Duvall, Carnation, Fall City) and around Puyallup and Kent. Most farms that have posted 2026 dates open in mid-to-late September and run through October 31, and many add corn mazes, u-pick apples, or farm trains. For haunted houses, look to Buckley, Mountlake Terrace, and Stanwood, which mostly run Friday and Saturday nights in October.