Country size comparison

compared to

Australia is about 39 times bigger than South Dakota.

South Dakota is approximately 196,540 sq km, while Australia is approximately 7,741,220 sq km, making Australia 3,839% larger than South Dakota. Meanwhile, the population of South Dakota is ~935,094 people (26.7 million more people live in Australia).
Tip: This to-scale comparison of South Dakota vs. Australia uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Australia vs. South Dakota

Flip Comparison · See true size
See Australia on top of South Dakota
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Quality of Life Comparison · 3 statistics
Be 41.3% less likely to be unemployed in South Dakota
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Cost of Living Comparison · 7 categories - 2026 data
South Dakota is 15.4% cheaper than Australia overall
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