Iowa Code § 161A.16: Publication of notice.

The notice of hearing on the formation of a subdistrict shall be by publication once each week for two consecutive weeks in some newspaper of general circulation published in the county or district, the last of which shall be not less than ten days prior to the day set for the hearing on the petition. Proof of such service shall be made by affidavit of the publisher, and be on file with the secretary of the district at the time the hearing begins.