Its southern terminus is at SR 82 in Strongsville, and its northern terminus is in Lakewood where U.S. Route 20 (US 20) joins the US 6 / SR 2 concurrency.

After continuing on Front Street for about 1 mile, the route makes a slight turn onto North Rocky River Drive, which becomes a freeway as it enters Brook Park after Sheldon Road.

This portion of the route, which connects Cleveland Hopkins International Airport to Interstate 480 (I-480) and I-71, is known as the Berea Freeway (or the Airport Freeway).

In this interchange, SR 237 leaves the Berea Freeway for surface streets, where SR 237 northbound has a short concurrency with SR 17 westbound; the Berea Freeway continues northeast as unsigned County Route 237[2] and merges into I-71.

North of this interchange, SR 237 proceeds along Rocky River Drive (which is parallel to the Rocky River) until its northern terminus at Clifton Boulevard (US-6).