State size comparison

compared to

South Dakota is about 1.3 times smaller than Wyoming.

Wyoming is approximately 251,489 sq km, while South Dakota is approximately 196,540 sq km, making South Dakota 78.15% the size of Wyoming. Meanwhile, the population of Wyoming is ~563,626 people (250,554 more people live in South Dakota).
Tip: This to-scale comparison of Wyoming vs. South Dakota uses the Mercator projection, which distorts the size of regions near the poles.
Share
Compare further: South Dakota vs. Wyoming
Flip Comparison · See true size
See South Dakota on top of Wyoming
→
Quality of Life Comparison · 7 statistics
Be 50.0% more likely to be unemployed in Wyoming
→
Cost of Living Comparison · 7 categories - 2026 data
Wyoming is 33.3% more expensive than South Dakota
→