Population of Washington County, Oregon (County)

Map of Population by County Subdivision in Washington County

Map of Population by Tract in Washington County

Map of Population by Block Group in Washington County

Population by Place in Washington County

There are 28 places that are fully or partially contained within Washington County (20 fully and 8 partially). This section compares all 28 of those to each other.

Population by County Subdivision in Washington County

There are 6 county subdivisions in Washington County. This section compares all 6 of those to each other.

Population by County in the Portland Area

There are 7 counties in the Portland Area. This section compares Washington County to all of the counties in the Portland Area.

Population by County in Oregon

There are 36 counties in Oregon. This section compares Washington County to all of the counties in Oregon.

Population by County in the United States

There are 3,142 counties in the United States. This section compares Washington County to the 50 most populous counties in the United States. The least populous of the compared counties has a population of 941,618.

Definitions

This page reports on the population distribution in Washington County, both in terms of raw head counts, and in terms of population density per square mile.

• Population: count of all residents of the given entity at the time of the survey, excluding visitors
• Population Density: population divided by the total land area of the entity (i.e., excluding water areas contained in the entity)

For additional information about the data presented on this site, including our sources, please see the About Page.