Minnehaha is a census-designated place (CDP) in Clark County, Washington, United States. The population was 9,771 at the 2010 census, up from 7,689 at the 2000 census.

Minnehaha is located in southwestern Clark County at 45°39′N 122°37′W / 45.650°N 122.617°W / 45.650; -122.617 (45.656, -122.622). It is bordered on the west, south, and east by the city of Vancouver and upon the north by Walnut Grove.

According to the United States Census Bureau, the Minnehaha CDP has a total area of 2.2 square miles (5.8 km²), of which 0.01 square miles (0.02 km²), or 0.26%, is water.

As of the census of 2000, there were 7,689 people, 2,795 households, and 2,031 families residing in the CDP. The population density was 3,464.1 people per square mile (1,337.3/km²). There were 2,907 housing units at an average density of 1,309.7/sq mi (505.6/km²). The racial makeup of the CDP was 88.28% White, 2.20% African American, 0.95% Native American, 2.81% Asian, 0.62% Pacific Islander, 2.09% from extra races, and 3.04% from two or more races. Hispanic or Latino of any race were 4.10% of the population. 15.0% were of German, 13.2% English, 8.2% American and 7.8% Irish ancestry according to Census 2000.

There were 2,795 households, out of which 36.2% had children under the age of 18 living later them, 57.1% were married couples vibrant together, 11.0% had a female householder with no husband present, and 27.3% were non-families. 20.9% of whatever households were made occurring of individuals, and 7.7% had someone perky alone who was 65 years of age or older. The average household size was 2.75 and the average family size was 3.18.