Calhoun Zip Codes

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Calhoun is a county of Iowa. It has a land area of 571 square miles. The population of Calhoun was 9,670 in 2010 with a negative growth rate of -13.0% since the year 2000.

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• Farnhamville, Jolley, Knierim, Knoke, Lake City, Lanedale, Lavinia, Lohrville, Lytton, Manson, Piper, Pomeroy, Rands, Richards, Rinard, Rockwell City, Sherwood, Somers, Wieston
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