A 2011 Cadillac STS averages $2,495 today, with most selling between $1,995 and $5,700. ForCar prices the Cadillac STS from real US listings across 7 model years ($1,800–$6,350) — trade-in, private-party and dealer, adjusted for mileage. Free, no signup.
Cadillac STS value by year
What a Cadillac STS is worth at each model year, from real US listings — the low (trade-in), median (private-party) and high (dealer) price.
| Year | Trade-in | Median | Dealer | Listings |
|---|---|---|---|---|
| 2011 | $1,995 | $5,700 | 11 | |
| 2009 | $3,399 | $9,950 | 10 | |
| 2008 | $1,500 | $6,290 | 9 | |
| 2007 | $2,999 | $12,000 | 4 | |
| 2006 | $2,950 | $5,000 | 5 | |
| 2005 | $2,000 | $2,500 | 3 | |
| 1999 | $5,500 | $13,000 | 4 |
How the Cadillac STS depreciates
Median market price by model year — how a Cadillac STS loses (or holds) value as it ages, from real listings. See how it tracks against the typical depreciation curve by age:
The newest Cadillac STS averages $2,495; a 12-year-older one runs about $5,500 — roughly -120% lost over 12 years. The steepest drop is usually in the first few years.
The Cadillac STS market right now
Every real Cadillac STS listing plotted by year and asking price — the white line is the median; dots below it are priced under market (potential deals).
Adjust your Cadillac STS value for mileage
Pick a model year and enter your odometer — see what your exact Cadillac STS is worth on today's market.
Trade-in, private-party & dealer price
Every Cadillac STS has three prices. Our low–median–high range maps to what a dealer pays you, what you'd get selling it yourself, and what a lot charges — compare with current used-market prices across all models.
For a 2011 Cadillac STS: a dealer trade-in offer is around $1,995, selling private-party nets about $2,495, and a lot asks near $5,700 — a $3,705 spread on the same car.
Tired of ads? Go Pro.
- Zero ads — clean, fast pages
- Exact mileage-adjusted car values
- Full research reports + PDF
- Market charts & price-drop alerts
- …and much more
Get an exact Cadillac STS value by VIN
Trim, engine and options move the value. Decode your Cadillac STS's VIN free to pin the exact build, then check its market value.
More on the Cadillac STS
Cadillac STS value FAQ
How much is a Cadillac STS worth?
A 2011 Cadillac STS averages $2,495 today (roughly $1,995–$5,700). Value depends on the year and mileage — see the table above for every model year, or add your mileage for an exact number.
Does mileage change the Cadillac STS value?
Yes — higher mileage lowers value. Enter your odometer reading in the mileage tool above to adjust the estimate from the model-year average.
Is the Cadillac STS value free?
Yes, every estimate is free with no signup, from real US market listings.
How is this calculated?
ForCar aggregates real asking prices for the Cadillac STS from current US listings into the low (10th percentile), median and high (90th percentile) price per model year.
Which Cadillac STS year is the best value?
See the value-by-year table and depreciation above — older years cost less but the newest years hold value best. The sweet spot is usually a few years old, where the steepest depreciation has already happened.
Is this a free Cadillac STS Blue Book alternative?
Yes. ForCar is a free, no-signup alternative to Kelley Blue Book and NADA — instead of a private formula, you see what Cadillac STSs are actually listed for right now, by year and mileage.