During the period any area is designated as an industrial area as provided by sections 13-1111 to 13-1120, the county board in which the greater area of real estate is located shall have exclusive jurisdiction for zoning and otherwise regulating the use of the industrial area in such a way as to confer upon the owners and users thereof the benefits of a designated tract to be held and reserved for industrial purposes only; Provided, such authority shall not be granted to the county board if the zoning of such designated area is within the jurisdiction of any city or village.