Mount Vista is a census-designated place (CDP) in Clark County, Washington, United States. It includes the Vancouver campus of Washington State University. The population of Mount Vista was 7,850 at the 2010 census, up from 5,770 at the 2000 census.

Based on per capita income, one of the more reliable measures of affluence, Mount Vista ranks 66th of 614 areas in the acknowledge of Washington to be ranked.

Mount Vista is located in southwestern Clark County at 45°44′1″N 122°38′30″W / 45.73361°N 122.64167°W / 45.73361; -122.64167 (45.733638, -122.641595). It is bordered to the west by Interstate 5, to the southwest by the community of Salmon Creek, and to the southeast by Barberton. It is 9 miles (14 km) north of downtown Vancouver.

According to the United States Census Bureau, the Mount Vista CDP has a total area of 5.3 square miles (13.6 km²), all of it land.

As of the census of 2000, there were 5,770 people, 2,215 households, and 1,705 families residing in the CDP. The population density was 1,103.8 people per square mile (426.0/km²). There were 2,347 housing units at an average density of 449.0/sq mi (173.3/km²). The racial makeup of the CDP was 93.08% White, 0.99% African American, 0.43% Native American, 2.82% Asian, 0.14% Pacific Islander, 0.47% from extra races, and 2.06% from two or more races. Hispanic or Latino of any race were 2.46% of the population. 21.9% were of German, 11.7% English, 9.4% American, 7.0% Norwegian and 5.5% Irish ancestry according to Census 2000.