Banks is a city in Washington County, Oregon, United States, which is located in the Tualatin Valley.

[4] The community was named for John and Nancy Banks, who owned a nearby dairy farm.

According to the United States Census Bureau, the city has a total area of 0.37 square miles (0.96 km2), all land.

There were 580 housing units at an average density of 1,567.6 per square mile (605.3/km2).

14.3% of all households were made up of individuals, and 2.5% had someone living alone who was 65 years of age or older.

There were 492 housing units at an average density of 1,486.6 per square mile (574.0/km2).

17.7% of all households were made up of individuals, and 3.2% had someone living alone who was 65 years of age or older.