170.04   DISTRICTS ESTABLISHED.  
For the purpose of this Chapter, the City is hereby divided into districts as follows:
“A-1” District   (Agricultural)
“A-2” District   (Agricultural)
“AP” Overlay   (Agricultural Preservation)
“R-1” District   (Low Density Residential)
“R-2” District   (Low Density Residential)
“R-3” District   (Low Density Residential)
“R-4” District   (Medium Density Residential)
“R-5” District   (High Density Residential)
“R-6” District   (Mobile Home Parks)
“R-7” District   (One & Two Family Residential)
“R-8” District   (Residential-Agricultural Transitional District)
“RB-1” District   (Residential-Business Transitional District)
P.U.D.      (Planned Unit Development)
“B-1” District   (Light Business)
“B-2” District   (General Business & Commercial)
“B-3” District   (Central Business District)
“I-1” District   (Light Industrial)
“I-2” District   (General Industrial)
“F-1” District   (Flood Plain)
W.E.C.S.   (Wind Energy Conversion Systems)
S.E.S.   (Solar Energy Standards)