Until the 1976 renumbering, the Genoa Lane section of SR 206 was State Route 57, connecting Genoa to US 395. That route was defined by 1937. However, in the renumbering, SR 206 was assigned to return to US 395 using Jacks Valley Road rather than Genoa Lane.
Until 1976, when SR 206 was renumbered, the Genoa Lane section of SR 206 was State Route 57, linking Genoa to US 395. This route was established in 1937. However, during the renumbering, SR 206 was reassigned to use Jacks Valley Road instead of Genoa Lane to connect to US 395.