Cadillac STS Insurance: by Model Year & Company
Cadillac STS insurance costs an average of $916 for a 6-month full coverage policy. Erie offers the cheapest rate for the latest Cadillac STS at $116/mo or $695 for a 6-month full coverage policy.
- Shopping around? Use our calculator to compare average insurance rates by vehicle.
- Know your vehicle? Get a personalized quote by entering your zip code.
What to know about insuring a Cadillac STS:
- The STS costs less to insure than most sedans. Averaging $153/mo for the STS versus $203/mo for typical sedans.
- If you're considering a vehicle similar to the STS, like the Cadillac CT5 ($221/mo), Cadillac CT6 ($214/mo), or Cadillac Escalade ESV ($223/mo), your insurance costs will be cheaper.
- Erie ($116/mo), USAA ($120/mo), American Family ($132/mo) offer the cheapest full coverage rates.
The rates displayed are based on a full coverage 30-year-old male driver with no violations in 2025. Customizations to your vehicle (trim or modifications) and your driving history will impact your insurance costs. Consider these rates as a jumping off point for your search.
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Cheapest Companies
2011 Cadillac STS
| Cheapest Insurance Companies | Average Annual Cost |
|---|---|
| Erie |
$1,390 |
| USAA |
$1,440 |
| American Family |
$1,584 |
| State Farm |
$1,645 |
| Progressive |
$1,699 |
| Nationwide |
$1,929 |
| GEICO |
$1,940 |
| Farmers |
$2,132 |
| Allstate |
$2,727 |