Laughing Jacobs Falls is a waterfall on Laughing Jacobs Creek in King County, Washington, in the Puget Lowland region, with a total height of about 20 feet. It lies about 1.5 miles west of Klahanie and roughly 5.6 miles south of Sammamish as the crow flies.
At 20 feet it is on the modest side for Washington, where the typical waterfall with a recorded height stands around 82 feet; it ranks 851st of 941. The water comes down as a cascade, descending over a series of rock steps rather than in a single drop.
The Puget Lowland is a glacially shaped basin of low hills, lakes and wetlands between the Olympics and the Cascades, once covered by Douglas fir and western red cedar and now the most settled part of Washington. Streams here run through terraces of glacial till and outwash, with waterfalls where creeks cut through the deposits.
There are 236 recorded waterfalls in King County. Doughty Falls, a 10-foot horsetail waterfall, is about 4.5 miles away. Coal Creek Falls, a 28-foot horsetail waterfall, is about 4.6 miles away. North Fork Falls, a 24-foot veiling horsetail waterfall, is about 4.7 miles away.
Laughing Jacobs Falls is located at 47.5656° N, 122.0391° W. The listing is based on the World Waterfall Database, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The exact position has not yet been verified on aerial imagery, so treat the map pin as approximate. Details on trails, parking and access have not been documented for this waterfall yet.