Clinton is a community and census-designated place (CDP) located on southern Whidbey Island in Island County, Washington, United States. The town was named after Clinton, Michigan. As of the 2010 census, the population was 928. However, the post office serves at least 2,500 people.

Whidbey Island is the largest of the islands composing Island County, Washington, in the United States, and the largest island in Washington state. Whidbey is about 30 miles (48 km) north of Seattle, and lies between the Olympic Peninsula and the I-5 corridor of western Washington. The island forms the northern boundary of Puget Sound. It is home to Naval Air Station Whidbey Island. The state parks and natural forests are home to numerous old growth trees.