. "Calhoun County"@en . . "0.4"^^ . "5.43898e+06"^^ . "9670"^^ . "6.56374"^^ . "Calhoun County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 9,670. Its county seat is Rockwell City."@en . "1.48147e+09"^^ . "2010Z"^^ . "1.47629e+09"^^ . . .