119th Congress · WA-1
Washington's 1st Congressional District
Washington's 1st Congressional District (WA-1) has a population of 773,262. The median household income is $131,931 and the median age is 37.4.
773,262
Population
2328
People / sq mi
$131,931
Median Income
37.4
Median Age
WA-1 covers 332 sq mi of land at 2328.4 people per square mile.
Race & Ethnicity
| White | 62.5% |
| Black or African American | 2.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.1% |
Economy & Income
$131,931
Median Household Income
$68,132
Per Capita Income
4.0%
Poverty Rate
2.8%
Unemployment
Housing
$769,500
Median Home Value
$2,241
Median Rent
63.2%
Homeownership
Education
95.2%
High School+
51.8%
Bachelor's+
Other Washington Congressional Districts
Largest cities in Washington
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State rankings
Frequently Asked Questions
Washington's 1st Congressional District (WA-1) has a population of 773,262 according to the latest Census ACS 5-Year estimates. Each US Congressional District is drawn to be roughly equal in population (~760K people).
The median household income in Washington's 1st Congressional District is $131,931, with a per capita income of $68,132.
Washington's 1st Congressional District is 62.5% White, 2.5% Black, 0.0% Asian, and 2.1% Hispanic or Latino, per Census ACS data.
More from Washington
Data for Washington's 1st Congressional District (119th Congress) from the American Community Survey 5-Year estimates. Land area from the Census Gazetteer files. Congressional districts are redrawn after each decennial Census; the 119th Congress (current) uses post-2020 boundaries.
this entity is one of the data points covered by this site’s U.S. population demographics dataset. The detail above comes directly from the U.S. Census Bureau ACS and decennial files; the context that follows situates the headline numbers against the broader distribution across U.S. states, metros, cities, and ZIPs.
The methodology behind every numeric value on this page is publicly documented on the the U.S. Census Bureau ACS and decennial files portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. states, metros, cities, and ZIPs. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: U.S. Census Bureau ACS, 2026.