Riverbend is an unincorporated community and census-designated place (CDP) in King County, Washington, United States.

Riverbend is located in east-central King County in the valley of the South Fork of the Snoqualmie River.

Riverbend is served by Exit 32 on I-90, which leads west 31 miles (50 km) to downtown Seattle and east over Snoqualmie Pass 80 miles (130 km) to Ellensburg.

The racial makeup of the CDP was 94.48% White, 0.27% African American, 0.54% Native American, 1.75% Asian, 0.18% Pacific Islander, 1.26% from other races, and 1.52% from two or more races.

[3] Of the 775 households 48.0% had children under the age of 18 living with them, 68.6% were married couples living together, 7.4% had a female householder with no husband present, and 21.0% were non-families.