Kennewick is a city located in Washington. With a 2020 population of 87,649, it is the 14th largest city in Washington and the 391st largest city in the United States. Kennewick is currently growing at a rate of 1.92% annually and its population has increased by 18.58% since the most recent census, which recorded a population of 73,917 in 2010. Kennewick reached it's highest population of 87,649 in 2021. Spanning over 29 miles, Kennewick has a population density of 3,193 people per square mile.
The average household income in Kennewick is $74,073 with a poverty rate of 15.51%. The median rental costs in recent years comes to $922 per month, and the median house value is $215,500. The median age in Kennewick is 33.7 years, 32.7 years for males, and 34.8 years for females. For every 100 females there are 100.7 males.