The city is divided into the following districts as shown on the zoning map of the city, and these districts are designated as follows:
R-1 Residential District
R-2 Residential District
R-3 Residential District
R-3A Residential District
R-4 Residential District
R-5 Residential District
B-1 Neighborhood Business District
B-2 Highway Business District
B-3 Central Business District
B-4 Medium Density Business District
P-O Professional Office District
I Industrial District
G Government District
A Agricultural District
F Floodway District
H Historic Overlay District
(Ord. 794, passed 12-22-83; Am. Ord. 89-890, passed 4-27-89; Am. Ord. 90-925, passed 7-26-90; Am. Ord. 2009-1480, passed 2-26-09)