There are 159 Auto Parts & Accessories Stores in Washington County, Oregon, serving a population of 572,071 people in an area of 725 square miles. There is 1 Auto Parts & Accessories Store per 3,597 people, and 1 Auto Parts & Accessories Store per 4 square miles.
In Oregon, Washington County is ranked 31st of 36 counties in Auto Parts & Accessories Stores per capita, and 2nd of 36 counties in Auto Parts & Accessories Stores per square mile.