Mikkalo is an unincorporated community in Gilliam County, Oregon, United States. Although it is unincorporated, it has a ZIP code of 97861. Mikkalo is about 4 miles (6.4 km) northwest of Clem.
This region experiences warm (but not hot) and dry summers, with no average monthly temperatures above 71.6 °F. According to the Köppen Climate Classification system, Mikkalo has a warm-summer Mediterranean climate, abbreviated "Csb" on climate maps.
Coordinates: 45°28′15″N 120°14′05″W / 45.470963°N 120.234762°W