Kelso is located in Washington. Kelso, Washington has a population of 11,864. Kelso is more family-centric than the surrounding county with 28.59% of the households containing married families with children. The county average for households married with children is 28.03%.
The median household income in Kelso, Washington is $35,680. The median household income for the surrounding county is $49,804 compared to the national median of $57,652. The median age of people living in Kelso is 36.3 years.
The average high temperature in July is 77.8 degrees, with an average low temperature in January of 35.3 degrees. The average rainfall is approximately 61.5 inches per year, with 3.2 inches of snow per year.
