Sioux City, IA Parking Rules: Commercial Vehicle Restrictions (2026)

Section 10.30.120 of the Sioux City Municipal Code (Title 10, Traffic) governs commercial vehicle parking. Trucks exceeding a 5-ton licensed weight are restricted to one hour of on-street parking at any location except during active loading or unloading, and are prohibited from city off-street public parking facilities. The companion 24-hour rule at Section 10.30.130 caps any vehicle (including a commercial vehicle) at 24 hours in the same location and requires movement of at least 30 feet within each 24-hour period; a vehicle in violation for 48 hours is deemed abandoned and may be towed without further notice. Iowa Code Section 321.358 sets the statewide parking prohibitions that also apply: no parking within five feet of a fire hydrant, on a crosswalk, in front of a driveway, within an intersection, or other prohibited locations. Iowa Code Section 321.236 confirms cities' authority to regulate truck and commercial vehicle parking by ordinance. The Title 25 Zoning and Sign Code (Section 25.05.030 - Parking and Loading) sets where commercial vehicles may be stored on private property, with the most restrictive standards applying to residential zoning districts (AG, RR, SR, GR, UR and NC). Sioux City Parking Enforcement (Police Department) handles on-street citations; Inspection Services enforces private-property storage rules.