State size comparison

compared to

Massachusetts is about 10 times smaller than South Dakota.

South Dakota is approximately 196,540 sq km, while Massachusetts is approximately 20,306 sq km, making Massachusetts 10.33% the size of South Dakota. Meanwhile, the population of South Dakota is ~814,180 people (5.7 million more people live in Massachusetts).
Tip: This to-scale comparison of South Dakota vs. Massachusetts uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Massachusetts vs. South Dakota

Flip Comparison · See true size
See Massachusetts on top of South Dakota
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Quality of Life Comparison · 17 statistics
Be 48.9% less likely to be unemployed in South Dakota
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Cost of Living Comparison · 7 categories - 2026 data
South Dakota is 23.1% cheaper than Massachusetts
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