Ridgefield is a city in northern Clark County, Washington, United States.

[6] Located within the Portland metropolitan area, Ridgefield is notable for the significant Native American history and connection to the Lewis and Clark Expedition.

It is also the headquarters of the Ridgefield National Wildlife Refuge, a primary reserve for migrating waterfowl on the Pacific Flyway, and the home of the Ridgefield High School "Spudders" (reflecting the area's potato-farming heritage).

The area has important ties to the Lewis and Clark Expedition of 1804–1806, being close to the Chinookan town of Cathlapotle, then a settlement of 700–800 people, with at least 14 substantial plank houses.

[7] The community's ties to the Chinookan people was commemorated by the construction of a replica of a Cathlapotle plank house at the nearby Ridgefield National Wildlife Refuge, which was dedicated March 29, 2005.

[8][citation needed] Ridgefield was an important trading center as early as the 1860s with its key location near the mouth of the Columbia River, and the city was officially incorporated on August 26, 1909.

The Ridgefield Veterans Memorial is adjacent to Community Park.

[11] The current city manager is Steve Stuart, a former county commissioner who was hired in 2014.

[14] Judy Chipman was appointed Mayor Pro Tem also in January 2025.

[8][15] As of the 2020 census, there were 10,319 people, 3,432 households, and 2,784 families residing in the city.

[20] As of the 2010 census, there were 4,763 people, 1,591 households, and 1,258 families living in the city.

As of the 2000 census, there were 2,147 people, 739 households, and 557 families living in the city.