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Sumner city, Washington Demographics & Population 2026

As of 2026, Sumner city, Washington has a total population of 10,674, the 122nd largest city in Washington, with a median household income of $98,376, which is 4% higher than the state average. The poverty rate is 7.1%.

Sumner city Quick Facts

Population 10,674
Median Household Income $98,376
Median Home Value $478,500
Poverty Rate 7.1%
Unemployment Rate 5.9%
Median Age 35.1 years
Homeownership Rate 49.8%
Affordability Ratio 4.9x
Bachelor's Degree or Higher 23.5%
High School Graduation Rate 91.2%
Diversity Index 41/100
Population 10,674 122nd of 631
Median Income $98,376 above average
Poverty Rate 7.1% 43% lower national
Median Home Value $478,500 above average

How Sumner city Compares

Economy & Housing

Employment

5.9% Unemployment Rate State: 5.0% | National: 5.2%
67.0% Labor Force Participation

Housing Overview

Owner 49.8%
Renter 50.2%
Affordability Index Moderate
4.9x home value to income ratio

People & Demographics

Diversity Index

41out of 100
Moderate Diversity

Moderate diversity with one or two groups making up the majority.

State average: 55 | National average: 60

Education

Sumner city Rankings in Washington

#122 Population of 631
#199 Median Income of 631
#337 Education of 631
#219 Home Value of 631

Cities Similar to Sumner city

These cities in the same state have comparable population and economic profiles.

CityPopulationMedian IncomeHome ValueBachelor's+Poverty
Mount Vista CDP10,635$101,189$526,20041.3%6.9%
Yelm city10,618$88,279$439,10026.1%5.4%
Fife city10,902$90,515$480,60028.0%11.5%
Fairwood CDP (Spokane County)10,439$84,911$435,20045.0%8.4%
Vashon CDP10,424$115,750$717,70051.9%9.3%

Population Overview

Sumner city is a small city located in Washington. The total population is 10,674. It ranks as the 122nd most populous out of 631 cities and towns in Washington.

Age Demographics

The median age in Sumner city is 35.1 years. This is 8% lower than the state median of 38.2 years.

Economy, Income & Housing

The median household income in Sumner city is $98,376. This is 4% higher than the state median of $94,952. Compared to the national median of $78,538, household income here is 25% higher. The poverty rate stands at 7.1%. This is 28% lower than the state poverty rate of 9.9%. The unemployment rate is 5.9%. This is 19% higher than the state rate of 5.0%. The median home value is $478,500. Housing costs are 8% lower than the state median of $519,800. The home-value-to-income ratio is 4.9x. 49.8% of occupied housing units are owner-occupied. This homeownership rate is 22% lower than the state average of 63.9%.

Race & Ethnicity

The largest racial or ethnic group in Sumner city is White (non-Hispanic), making up 73.9% of the population. Hispanic or Latino residents account for 17.5%. The Black or African American population (1.0%) is well below the state average of 3.8%. The Asian population (0.9%) is well below the state average of 9.3%.

Education

23.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 39% lower than the state rate of 38.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.2%.

Data Sources & Methodology

All demographic data for Sumner city, Washington is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Washington state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 631 Census-designated places in Washington. For official data, visit data.census.gov.

Free data download: Get all Washington city and county demographics as CSV. Download Cities CSV | Download Counties CSV

Frequently Asked Questions

What is the population of Sumner city, Washington?

Sumner city, Washington has a population of 10,674 according to the most recent U.S. Census ACS 5-Year Estimates.

What is the median household income in Sumner city, WA?

The median household income in Sumner city is $98,376, which is 25% higher the national median of $78,538.

What is the poverty rate in Sumner city, WA?

The poverty rate in Sumner city is 7.1%. This means approximately 754 residents live below the federal poverty line.

What is the racial makeup of Sumner city, Washington?

Sumner city's population is 73.9% White, 1.0% Black, 17.5% Hispanic/Latino, and 0.9% Asian.

What is the median home value in Sumner city, WA?

The median home value in Sumner city is $478,500. The home-value-to-income ratio is 4.9x.

How educated is Sumner city, Washington?

23.5% of adults (25+) in Sumner city hold a bachelor's degree or higher, and 7.7% hold a graduate or professional degree.