Iowa Code § 356A.7: Contract with another county.

A county board of supervisors may contract with another county or a city maintaining a jail meeting the minimum standards for the regulation of jails established pursuant to section 356.36 for detention and commitment of persons pursuant to section 356.1. A person detained or confined in the jail shall be in the charge and custody of the governmental unit maintaining the jail. The cost of detention and confinement shall be levied and paid by the city or the county to which the cause originally belonged.