There are hereby established comprehensive zoning regulations for the City of Boone, Iowa, and surrounding lands within two miles of the corporate limits of the City of Boone, Iowa, by dividing the incorporated and unincorporated area within two miles of the corporate limits into various districts and setting forth certain district standards and general provisions to: (i) regulate and restrict the height, number of stories, and size of buildings and other structures, the percentage of lot that may be occupied, the size of yards, courts and other open spaces, the density of population and the location and use of buildings, structures, and land for trade, industry, residence or other purposes; and (ii) provide for the administration, enforcement and amendment thereof, in accordance with Chapter 414 Code of Iowa.