Toponas is an unincorporated community in Routt County, Colorado, United States.

As of 2015, the village consists of a large general store with gas pumps, and a few ranch houses and attendant outbuildings.

Just west of the village is a post office, currently serving ZIP Code 80479,[2] which has been in operation since 1888.

As a result, the town is traversed by not only State Highway 131, but also the former Craig branch of the Denver and Rio Grande Western Railroad.

Toponas also lies at the west end of State Highway 134 and thus at the bottom of the climb to Gore Pass, on one of the two highway routes between the Yampa Valley and Middle Park.