There are 123 Gas Stations in Washington County, Oregon, serving a population of 572,071 people in an area of 725 square miles. There is 1 Gas Station per 4,650 people, and 1 Gas Station per 5 square miles.
In Oregon, Washington County is ranked 33rd of 36 counties in Gas Stations per capita, and 2nd of 36 counties in Gas Stations per square mile.