Stevinson is an unincorporated community and census-designated place[4] in Merced County, California.

The US Army built the Howard Auxiliary Field (1942-1944) to train World War II pilots in Stevinson.

[6] Stevinson is in northwestern Merced County, north of the intersection of State Routes 140 and 165.

According to the United States Census Bureau, the Stevinson CDP covers an area of 1.1 square miles (2.8 km2), all of it land.

[1] This region experiences warm (but not hot) and dry summers, with no average monthly temperatures above 71.6 °F (22.0 °C).

There were 101 housing units at an average density of 89.4 per square mile (34.5/km2), of which 52 (56.5%) were owner-occupied, and 40 (43.5%) were occupied by renters.