The state code specifies “matters to be considered” in drawing and applying zoning ordinances and districts. Those include “existing use and character of property, the comprehensive plan, the suitability of property for various uses, the trends of growth or change, the current and future requirements of the community as to land for various purposes as determined by population and economic studies and other studies, the transportation requirements of the community, the requirements for airports, housing, schools, parks, playgrounds, recreation areas and other public services, the conservation of natural resources, the preservation of flood plains, the protection of life and property from impounding structure failures, the preservation of agricultural and forest land, the conservation of properties and their values and the encouragement of the most appropriate use of land throughout the locality.”