Kennewick, Washington Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Kennewick, Washington is 84,389 as of the 2023 American Community Survey, making it the 15th-largest city in Washington. The median household income is $72,867, the median home value is $343,600, and the median age is 35.8.
The population has grown 16.5% since 2010 (74,447 → 86,728).
84,389
Population
2960
People / sq mi
$72,867
Median Income
$343,600
Median Home Value
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Kennewick covers 28.5 sq mi of land at 2960 people per square mile.
About Kennewick, WA
The poverty rate is what most separates Kennewick from the typical city: 11.1% of residents live below the federal poverty line, against 12.4% nationally. Kennewick is a city in Washington with a population of 84,389. It ranks #15 among cities in Washington by population.
The typical household here earns about $72,867, below the US median of $78,538. Poverty sits at 11.1%, below the national 12.4%. The typical home is valued at $343,600, with typical rent around $1,199.
Roughly 26.9% of adults have a bachelor’s, below the national 35.0%. About 8.5% of the workforce is home-based, below the national 14.0%, and the average commute runs about 21 minutes each way.
The elevated poverty rate is the context for the rest of the profile in Kennewick: it pulls on median income, housing tenure, and the share of residents with a college degree.
Kennewick city Population History (2010-2024)
The city of Kennewick city had a population of 74,447 in 2010 and 86,728 in 2024, a 16.5% growth over 14 years. The peak was 86,728 in 2024. Average annual growth rate: 1.10%.
86,728
Population (2024)
74,447
Population (2010)
86,728
Peak (2024)
1.10%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 74,447 |
| 2011 | 75,585 |
| 2012 | 75,930 |
| 2013 | 76,579 |
| 2014 | 77,339 |
| 2015 | 78,724 |
| 2016 | 80,081 |
| 2017 | 81,621 |
| 2018 | 82,696 |
| 2019 | 84,347 |
| 2020 | 84,000 |
| 2021 | 84,683 |
| 2022 | 85,190 |
| 2023 | 85,915 |
| 2024 | 86,728 |
Race & Ethnicity
| White | 67.2% |
| Black or African American | 2.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.3% |
| Two or More Races | 0.0% |
Economy & Income
$72,867
Median Household Income
$35,662
Per Capita Income
11.1%
Poverty Rate
3.0%
Unemployment Rate
Housing
$343,600
Median Home Value
$1,199
Median Rent
62.8%
Owner-Occupied
Education
86.8%
High School+
26.9%
Bachelor's+
Commute
1.7%
Drive Alone
75.6%
Public Transit
8.5%
Work From Home
21.1 min
Avg Commute
Community Profile
33.4%
Foreign Born
71.2%
Non-English at Home
7.2%
Veterans
16.4%
With Disability
91.2%
Health Insurance
95.9%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 21.7% |
| Finance, Insurance & Real Estate | 10.1% |
| Education, Health Care & Social Services | 9.1% |
| Construction | 8.7% |
| Manufacturing | 7.7% |
| Retail Trade | 6.8% |
| Arts, Entertainment & Food Services | 5.9% |
| Public Administration | 5.4% |
| Information | 4.2% |
| Agriculture & Mining | 4.0% |
| Transportation & Warehousing | 1.1% |
Largest cities in Washington
Largest counties in Washington
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City rankings
Frequently Asked Questions
Kennewick, Washington has a population of 84,389 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 15th-largest city in Washington.
The median household income in Kennewick, Washington is $72,867, with 11.1% of residents living below the federal poverty level.
The median home value in Kennewick, Washington is $343,600, with median monthly rent at $1,199 and a homeownership rate of 62.8%.
The median age in Kennewick, Washington is 35.8 years. The population is 49.5% male and 50.5% female.
The population has grown 16.5% since 2010 (74,447 → 86,728).
Kennewick city, WA Climate
Kennewick city, WA has an average annual temperature of 11.9°C (53°F) and receives about 207 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
11.9°C
Avg Temp
207
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 1° / 33° | 28 mm |
| February | 4° / 39° | 21 mm |
| March | 8° / 46° | 19 mm |
| April | 12° / 53° | 15 mm |
| May | 16° / 61° | 17 mm |
| June | 20° / 68° | 11 mm |
| July | 24° / 75° | 6 mm |
| August | 23° / 74° | 9 mm |
| September | 18° / 64° | 9 mm |
| October | 12° / 53° | 15 mm |
| November | 5° / 42° | 28 mm |
| December | 1° / 34° | 29 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Kennewick city, WA
The most comfortable months to visit Kennewick city, WA are typically June, August and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 32°C high). The coldest is January (near -3°C low). December is usually the wettest month.
Where to stay near Kennewick
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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.