To effectuate the comprehensive plan adopted by the city, lands within the incorporated boundaries of the city are hereby classified into the following categories, which are further described in subsequent sections and so indicated on the zoning map:

   A.    Residential:

      R-1 Low density residential

      R-2 Medium density residential

      R-3 High density residential

   B.    C Commercial

   C.    I Industrial (Ord. 518, 6-10-2008)

The boundaries of the various districts shown on the zoning map are unless otherwise indicated, streets, alleys, lot lines, or other lines of demarcation as shown on said map. Where a street layout property line or other boundary on the ground varies from that shown on the zoning map, and where property or other boundary lines do not exist or are not shown on the zoning map, the designations shown on the map shall be applied by the planning and zoning commission by map scale or other method so as to carry out the intent and purpose of the zoning map for that district. (Ord. 518, 6-10-2008)