San Bernardino is around the same size as Amsterdam.

Amsterdam is approximately 166 sq km, while San Bernardino (map shows its 50 named neighbourhoods; the area covers the whole city) is approximately 161 sq km, making San Bernardino 97.05% the size of Amsterdam.
Tip: This to-scale comparison of Amsterdam vs. San Bernardino uses the Mercator projection, which distorts the size of regions near the poles.
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