Arlington is around the same size as Newark.

Newark (map shows its 20 named neighbourhoods; the area covers the whole city) is approximately 63 sq km, while Arlington (map shows its 62 named neighbourhoods; the area covers the whole city) is approximately 67 sq km, making Arlington 8% larger than Newark.
Tip: This to-scale comparison of Newark vs. Arlington uses the Mercator projection, which distorts the size of regions near the poles.
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