Which State Is Farther North: Wyoming or South Dakota?

South Dakota is farther north than Wyoming.

The Geographic Details

• South Dakota's northernmost point: 45°55′ N latitude (on the North Dakota border).
• Wyoming's northernmost point: 45°01′ N latitude (on the Montana border).

That's a difference of about 54 minutes of latitude, or roughly 62 miles (100 km). While both states share a similar southern latitude (around 41° N), South Dakota extends significantly farther north.

Why It Matters

This difference contributes to South Dakota's generally cooler climate, shorter growing season, and more severe winters compared to Wyoming, despite Wyoming's higher average elevation.