Its southern terminus is at U.S. Route 42 (US 42) near Plain City, and its northern terminus is at a T-intersection with SR 38 in Marysville.

SR 736 runs exclusively within Union County.

The road continues in the same direction until its terminus at SR 38 in southwestern Marysville.

The road passes through mostly farmland and private properties.

[4][5] The entire route is in Union County.