[3] The park is named for East Stanwood postmaster Marie Louise Wenberg, who led a fundraising effort that raised $1,500 to purchase 20 acres (8.1 ha) of waterfront property from C. D. Hillman for a public park.

The campaign was spurred by reports that a golf course was proposed to be constructed at the property by businessmen from Everett.

Wenberg Park was dedicated in 1939 and remained under county ownership until it was acquired by the state government in 1947.

[6] The park underwent $3 million in renovations in 2018 to improve access to the beach and boat launch area.

This Snohomish County, Washington state location article is a stub.