Dewey County is also slightly larger than Osage County in area.

Northwest of Moorewood, the highway crosses into Dewey County.

Isabel is a town in Dewey County, South Dakota, United States.

Dewey County is a county in the U.S. state of Oklahoma.

Seiling is a city in Dewey County, Oklahoma, United States.

The district covers sections of Dewey County and Ziebach County.

US-60/SH-51 continue east through the unincorporated location of Harmon and on into Dewey County.

Dewey County is the name of two counties in the United States:

Putnam is a town in Dewey County, Oklahoma, United States.

It is the county seat of Dewey County.