Crossword puzzle clue "south dakota county"

Alaska, Delaware, Hawaii, Idaho, Maine, Montana, New Hampshire, North Dakota, Rhode Island, South Dakota, Vermont, and Wyoming each have just one of them

Like South Dakota vis-à-vis North Dakota

North Dakota or South Dakota

South Dakota county or its seat

South Dakota county

It's south of South Dakota: Abbr.

N. Dakota or S. Dakota, for two

Seat of Cass County, North Dakota