- Kelso, Washington (Wikipedia)
Kelso is a city in and the county seat of Cowlitz County, Washington, United States. At the 2020 census, the population was 12,720. Kelso is part of the Longview, Washington Metropolitan statistical area, which has a population of 110,730. Kelso shares its long western border with Longview. It is near Mount St. Helens.
- Kelso (Wikivoyage)
Kelso is a city in southwest Washington State, across the Cowlitz River from Longview.