§ 73.02 STATE CODE SPEED LIMITS.
   The following speed limits are established in Iowa Code § 321.285 and any speed in excess thereof is unlawful unless specifically designated otherwise in this chapter as a special speed zone.
 
District
Speed Limit
Iowa Code Section
Business district
20 mph
§ 321.285(1)
Residence or school district
25 mph
§ 321.285(2)
Suburban district
45 mph
§ 321.285(4)
 
(1999 Code, § 63.02)