Grand Rapids is about 3 times smaller than Atlanta.

Atlanta (map shows its 114 named neighbourhoods; the area covers the whole city) is approximately 350 sq km, while Grand Rapids is approximately 116 sq km, making Grand Rapids 33.09% the size of Atlanta.
Tip: This to-scale comparison of Atlanta vs. Grand Rapids uses the Mercator projection, which distorts the size of regions near the poles.
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