Kennewick population
Kennewick, Washington had an estimated 88,366 residents on July 1, 2025, the 424th-largest city in the US. That is up 19.5% since the 2010 Census and up 49.3% since 2000.
- Population, July 2025
- 88,366+5.3% since April 2020
- People per sq mile
- 3,10028.5 sq mi of land
- Median age
- 35.716% are 65 or older
- Households with kids
- 32.3%with anyone under 18
Population by year, 2000 to 2025
| Year | Population | Change | Basis |
|---|---|---|---|
| 2025 | 88,366 | +1,271 | Estimate, July 1 |
| 2024 | 87,095 | +1,018 | Estimate, July 1 |
| 2023 | 86,077 | +850 | Estimate, July 1 |
| 2022 | 85,227 | +518 | Estimate, July 1 |
| 2021 | 84,709 | +752 | Estimate, July 1 |
| 2020 | 83,957 | -308 | April 2020 estimates base |
| 2019 | 84,265 | +1,612 | Estimate, July 1 |
| 2018 | 82,653 | +1,018 | Estimate, July 1 |
| 2017 | 81,635 | +1,518 | Estimate, July 1 |
| 2016 | 80,117 | +1,365 | Estimate, July 1 |
| 2015 | 78,752 | +1,393 | Estimate, July 1 |
| 2014 | 77,359 | +761 | Estimate, July 1 |
| 2013 | 76,598 | +655 | Estimate, July 1 |
| 2012 | 75,943 | +351 | Estimate, July 1 |
| 2011 | 75,592 | +1,675 | Estimate, July 1 |
| 2010 | 73,917 | +1,776 | 2010 Census (April 1) |
| 2009 | 72,141 | +2,007 | Estimate, July 1 |
| 2008 | 70,134 | +2,154 | Estimate, July 1 |
| 2007 | 67,980 | +985 | Estimate, July 1 |
| 2006 | 66,995 | +874 | Estimate, July 1 |
| 2005 | 66,121 | +959 | Estimate, July 1 |
| 2004 | 65,162 | +984 | Estimate, July 1 |
| 2003 | 64,178 | +1,473 | Estimate, July 1 |
| 2002 | 62,705 | +1,947 | Estimate, July 1 |
| 2001 | 60,758 | +1,570 | Estimate, July 1 |
| 2000 | 59,188 | April 2000 estimates base |
Year-to-year changes across 2010 and 2020 mix census counts with estimates, so small jumps at those years are partly method changes.
Frequently asked questions
What is the population of Kennewick in 2025?
The Census Bureau estimates Kennewick had 88,366 residents on July 1, 2025, making it the 424th-largest city in the US.
Is Kennewick growing?
Yes. Kennewick has grown 19.5% since the 2010 Census (73,917 people), and grown 5.3% since 2020.
What was the population of Kennewick in 2000?
About 59,188 (the Census Bureau's April 2000 estimates base). By the 2010 Census it was 73,917.
How dense is Kennewick?
Kennewick has about 3,100 people per square mile of land (28.5 square miles).
More about Kennewick
See cost of living, jobs and commutes in Kennewick, Kennewick weather by month, or every Kennewick ZIP code. For the biggest cities in the country, see the largest US cities.