Sarah Helmick State Recreation Site, also known as Helmick Park, is a state park located south of Monmouth, in Polk County, Oregon, United States. It is located on the floodplain of the Luckiamute River and is forested by Bigleaf Maple, Douglas-fir, and Black Cottonwood trees, among other varieties. The park is named for Sarah Helmick, a pioneer to Oregon in 1845 who donated the original land. Sarah Helmick State Recreation Site is the first state park established in Oregon. It was listed on the National Register of Historic Places in 2022.