City size comparison

compared to

Lyon is around the same size as Helena.

Helena (map shows its 6 named neighbourhoods; the area covers the whole city) is approximately 44 sq km, while Lyon is approximately 48 sq km, making Lyon 8% larger than Helena.
Tip: This to-scale comparison of Helena vs. Lyon uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Lyon vs. Helena

Flip Comparison · See true size
See Lyon on top of Helena
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Cost of Living Comparison · 7 categories - 2026 data
Helena is 33.4% more expensive than Lyon
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