Sumner, Washington Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Sumner, Washington is 10,674 as of the 2023 American Community Survey, making it the 122nd-largest city in Washington. The median household income is $98,376, the median home value is $478,500, and the median age is 35.1.
The population has grown 15.4% since 2010 (9,435 → 10,885).
10,674
Population
1413
People / sq mi
$98,376
Median Income
$478,500
Median Home Value
Sumner covers 7.6 sq mi of land at 1413 people per square mile.
About Sumner, WA
Sumner is a city in Washington with a population of 10,674. It ranks #122 among cities in Washington by population. The median age is 35.1, younger than the national median. The population is 47.9% male and 52.1% female.
The median household income in Sumner is $98,376, above the US median of $74,580. 5.8% of residents live below the federal poverty level. Home values sit at a median of $478,500, with monthly rent averaging $1,886. The homeownership rate of 49.8% is lower than the national rate of 64.8%.
Educational attainment in Sumner reflects 23.5% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 10.5% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 30.2 minutes each way.
Sumner city Population History (2010-2024)
The city of Sumner city had a population of 9,435 in 2010 and 10,885 in 2024, a 15.4% growth over 14 years. The peak was 10,885 in 2024. Average annual growth rate: 1.03%.
10,885
Population (2024)
9,435
Population (2010)
10,885
Peak (2024)
1.03%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 9,435 |
| 2011 | 9,487 |
| 2012 | 9,526 |
| 2013 | 9,551 |
| 2014 | 9,628 |
| 2015 | 9,671 |
| 2016 | 9,947 |
| 2017 | 10,093 |
| 2018 | 10,165 |
| 2019 | 10,427 |
| 2020 | 10,661 |
| 2021 | 10,714 |
| 2022 | 10,632 |
| 2023 | 10,787 |
| 2024 | 10,885 |
Race & Ethnicity
| White | 79.9% |
| Black or African American | 1.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 6.6% |
| Two or More Races | 0.6% |
Economy & Income
$98,376
Median Household Income
$46,138
Per Capita Income
5.8%
Poverty Rate
3.9%
Unemployment Rate
Housing
$478,500
Median Home Value
$1,886
Median Rent
49.8%
Owner-Occupied
Education
91.2%
High School+
23.5%
Bachelor's+
Commute
1.5%
Drive Alone
73.7%
Public Transit
10.5%
Work From Home
30.2 min
Avg Commute
Community Profile
36.0%
Foreign Born
86.6%
Non-English at Home
8.2%
Veterans
11.9%
With Disability
91.4%
Health Insurance
97.9%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 19.5% |
| Manufacturing | 12.3% |
| Construction | 11.9% |
| Retail Trade | 10.1% |
| Finance, Insurance & Real Estate | 10.1% |
| Education, Health Care & Social Services | 7.5% |
| Arts, Entertainment & Food Services | 4.4% |
| Information | 4.3% |
| Public Administration | 3.1% |
| Transportation & Warehousing | 1.8% |
Largest cities in Washington
Largest counties in Washington
Part of Washington
Metro areas in Washington
City rankings
Frequently Asked Questions
Sumner, Washington has a population of 10,674 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 122nd-largest city in Washington.
The median household income in Sumner, Washington is $98,376, with 5.8% of residents living below the federal poverty level.
The median home value in Sumner, Washington is $478,500, with median monthly rent at $1,886 and a homeownership rate of 49.8%.
The median age in Sumner, Washington is 35.1 years. The population is 47.9% male and 52.1% female.
The population has grown 15.4% since 2010 (9,435 → 10,885).
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Statewide data for Washington
Population, race, income, age, and trends across Washington
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.