Karval is an unincorporated community in Lincoln County, Colorado, United States.
The community derives its name from G. K. Kravig, a pioneer settler.
A post office called Karval has been in operation since 1911. The Karval Post Office has the ZIP Code 80823.
Karval is located at (38.733197,-103.537045).
According to the Köppen Climate Classification system, Karval has a cold semi-arid climate, abbreviated "BSk" on climate maps.