There are 127 Tax Services in Washington County, Oregon, serving a population of 572,071 people in an area of 725 square miles. There is 1 Tax Service per 4,504 people, and 1 Tax Service per 5 square miles.
In Oregon, Washington County is ranked 23rd of 36 counties in Tax Services per capita, and 2nd of 36 counties in Tax Services per square mile.