Jenner, also known as Jenner-by-the-Sea, is a small coastal town and census-designated place (CDP) in Sonoma County, California, United States, with a population of 122 per the 2020 Census.

Working as a miner, he designed a pump that could raise water one hundred feet (30 m) high.

Traveling by ship from the Great Lakes to Panama, it crossed the Isthmus and sailed up the Pacific Coast.

Charles K. Jenner would go on to be a prominent attorney in early Seattle, arguing several cases in front of the U.S. Supreme Court.

[5] Stillwater Cove Regional Park, located 16 miles (26 km) north of Jenner, features picnic facilities, beach access, and a historic one-room schoolhouse.

[6] Jenner received media attention in 2004 after the bodies of Lindsay Cutshall and Jason S. Allen were discovered on Fish Head Beach just north of town.

There were 158 housing units at an average density of 65.9 per square mile (25.4/km2), of which 66.3% were owner-occupied and 33.8% were occupied by renters.

Summers are often overcast, the sun blocked by marine layer clouds that keep it cool, humid, and often drizzly in the night and morning hours.