For the purpose of this chapter, the city within the corporate limits and the land lying outside of and contiguous for a distance of 1½ miles from the corporate limits is hereby divided into districts, of which there shall be 10 in number, as follows:
AG-1. Agricultural District
C-1. Neighborhood Shopping District
C-2. Commercial District
C-3. Central Business District
M-1. Light Industrial District
M-2. Heavy Industrial District
R-1. Single-Family Residence District
R-2. Single-Family Residence District
R-3. Two-Family Residence District
R-4. Multiple Dwelling District
(1963 Code, § 10-2-1) (Ord. 590, passed 6-26-1958; Am. Ord. 656, passed 6-3-1963)