How many people live in the Kennewick, WA area?
Updated Mar. 4, 2026Refreshed annually
In 2024 there were 319,400 people in the Kennewick, WA area. That makes the Kennewick, WA metropolitan statistical area the 165th-most populous metro area in the US. It is home to 0.09% of the nation's population.
319K
population of Kennewick, WA area (2024)
0.09%
Kennewick, WA area share of US population (2024)
Between 2010 and 2024, the population of the Kennewick, WA area increased from 255,600 to 319,400—a 25% increase. During that same period, the US population grew 9.9%.
About 319,400 people lived in the Kennewick, WA area in 2024.
Population estimates of the Kennewick-Richland, WA Metro Area, 2010–2024
What are the age demographics of the Kennewick, WA area?
About 14.7% of the Kennewick, WA area's population in 2024 was aged 65 years or older, lower than the 18% share in the nation overall. Children (under 18) account for 26.8% of the Kennewick, WA area population, above the 21.6% population share of children nationwide.
A lower share of the Kennewick, WA area population is 65 and older than the US overall.
Population share by age group in Kennewick-Richland, WA Metro Area and the US overall (2024)
What is the racial and ethnic makeup of the Kennewick, WA area?
Hispanic residents make up 36.6% of the Kennewick, WA area population, higher than the national share of 20%.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
A higher share of the Kennewick, WA area population is Hispanic than the US overall.
Population share by race and ethnicity in Kennewick-Richland, WA Metro Area and the US overall (2024)
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
