Madison is about 3.9 times bigger than Albany.

Albany (map shows its 24 named neighbourhoods; the area covers the whole city) is approximately 55 sq km, while Madison (map shows its 124 named neighbourhoods; the area covers the whole city) is approximately 217 sq km, making Madison 291% larger than Albany.
Tip: This to-scale comparison of Albany vs. Madison uses the Mercator projection, which distorts the size of regions near the poles.
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