An SR-22 is not car insurance but a certificate proving you meet South Dakota's minimum liability coverage requirements after certain violations. You or your insurer file it. The SR-22 doesn’t affect rates, but the violations that require it can increase premiums.
For SR-22 insurance, State Farm offers the lowest rate at $288 per year, followed by American Family at $329 per year. These rates are for minimum coverage with a DUI on record. For non-owner car insurance, Auto-Owners is the most affordable at $201 annually, followed by State Farm at $228 annually.