. . "Union County"@en . "0.5"^^ . "11.5831"^^ . . "1.09815e+09"^^ . . "Union County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 12,534. The county seat is Creston."@en . . "12534"^^ . "5.69797e+06"^^ . . "2010Z"^^ . . "1.10333e+09"^^ . .