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De Kalb Zip Codes - Buchanan County MO
De Kalb, MO Zip Code Map
De Kalb, MO is a city located in Buchanan County, Missouri and has a land area of 36.24 square miles (93.86 km2). The water area for the city is 0.04 square miles or 0.10 km2. There is one unique zip code in De Kalb, Missouri and it is 64440. The area code(s) for De Kalb is 816.
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