Other pages about the topic: Population

Population forecasts and projections

Urban growth area maps

Population density by county

Growth Management Act population projections for counties: 2000 to 2025

Unincorporated fire protection district maps

Growth Management Act population projections for counties: 2000 to 2030

Group quarters population change by county: 2000 to 2010

Group Quarters Population Change by County for 2000 to 2010 for Washington Counties

Source: U.S. Census Bureau, Census 2000 Summary File 1 and 2010 Census Advance Group Quarters Summary File Data.

Population density by census block

Percent change in group quarters population by county: 2000 to 2010

Percent Change in Group Quarters Population by County for 2000 to 2010 for Washington Counties

Source: U.S. Census Bureau, Census 2000 Summary File 1 and 2010 Census Advance Group Quarters Summary File Data.

Historical estimates of April 1 population and housing for the state, counties, and cities

Intercensal estimates

Intercensal estimates are estimates that are bracketed on both sides by decennial census or state-certified special census counts. As such, they yield a more consistent series than postcensal estimates which only reference the prior census point. (Last updated March 21, 2024)

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