"Matlock is a city in Sioux County, Iowa, United States. The population was 87 at the 2010 census."@en . "958296.0"^^ . "-6" . . "51244" . "87"^^ . "960000.0"^^ . "90.7726"^^ . "0.0"^^ . . "427.0"^^ . "712" . "427.025"^^ . "958296.0"^^ . "90.8"^^ . . . . "Matlock, Iowa"@en . . "960000.0"^^ . "-5" . .