Washington County Median Age Statistics

Washington County
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Slowly but surely, Americans are getting older. From 2000 to 2018, the U.S. median age rose from 35.3 to 38.2, according to Census data. This report explores how Washington County’s population’s age is changing—and how the data compares to the United States as a whole.

The American Community Survey (ACS), conducted by the U.S. Census Bureau, publishes detailed estimates on Washington County's median age each year, broken down further by demographics and other characteristics. Unlike the Census—which is an exact count of people and households every ten years—ACS statistics are estimated based on a representative survey sample. 

For locations with populations under 60,000, the ACS is only available in 5-year estimates, rather than single-year periods. The 5-year estimates provide greater geographical granularity but a less granular time period. 

How does Washington County median age compare to Oregon and the United States?

How does median age vary within Washington County?

How does median age vary by sex in Washington County?

How does median age among Washington County residents vary by their places of birth? 

How does median age in Washington County vary based on when, and from where, residents moved to their homes?

Geographic mobility is the Census' term for Americans' migration patterns—if, when, and from where people moved to new homes. Note that this chart's population does not include infants less than one year old.

How does median age vary by transportation to work in Washington County?

Based on ACS data about commuting, this chart only considers the population of workers—and excludes anyone 15 and younger.

About the Data

Data is from the U.S. Census Bureau's American Community Survey (ACS), 5-year estimates. The following tables are used:

Median Age trend and map: Table B01002

Median Age by Sex: Table B01002

Place of Birth: Table B06002

Geographic Mobility: Table B07002, population 1 year and older.

Transportation to Work: Table B08103, workers 16 years and older.

This report uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.