2006 Cadillac STS prices in the U.S.
The median asking price for a 2006 Cadillac STS in the U.S. is $7,888 based on 23 active listings.
As of September 9, 2026, the median asking price for a 2006 Cadillac STS in the U.S. is $7,888, based on 23 active dealer listings tracked by VinAssessment.
◷ Updated September 9, 2026 ▤ 23 active dealer listings, refreshed daily
Typical: $4,742–$9,046 — the middle half of 23 asking prices
Why the wide range? Price depends mostly on configuration and mileage — see below. This spread covers the middle 96% of asking prices: we exclude the cheapest and priciest 2% (payment-priced ads, typos, salvage) so outliers don't distort it.
What moves the price on a 2006 Cadillac STS
The $4,742–$9,046 typical range isn't randomness — two factors explain most of it:
Asking prices run about $8,144 at 75K–90K miles and fall to $4,245 over 105K miles — roughly $1,300 for every 10,000 miles.
The same car typically asks $4,799 in Georgia but $8,248 in Texas.
Find your mileage and trim in the configurator below.
Configure the exact car
Modelled from 23 real asking prices, adjusted for mileage and location. Not a formal appraisal.
What would a 2006 Cadillac STS cost per month?
Estimate the monthly payment on a $7,888 vehicle. Move the numbers to match your own loan.
Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.
2006 Cadillac STS: a fair price for your mileage
A 2006 Cadillac STS sheds roughly $1,300 for every 10,000 miles. Find your mileage below.
| Mileage ⓘ | Based on ⓘ | Fair price ⓘ | Typical range ⓘ |
|---|---|---|---|
| 75K–90K miles | 6 listings | $8,144 | $7,972–$8,445 |
| Over 105K miles | 10 listings | $4,245 | $3,088–$9,222 |
Same trim and condition assumed — mileage is the biggest lever after configuration.
Trim-level pricing isn't reliable enough for this model yet — mileage and configuration explain most of the spread above.
Live 2006 Cadillac STS listings, priced by VIN
Every VIN links to a full market report: decode, active listings and the local price band. Shop 2005–2007 Cadillac STS listings on VehiSales →.
Price history
Median asking price by month · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2006 Cadillac STS is $7,062 (September 2026) — up 20.7% from $5,850 in October 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| September 2026 | $7,062 | $4,746–$9,222 | 10 |
| August 2026 | $6,080 | $4,371–$8,242 | 24 |
| July 2026 | $5,898 | $4,810–$8,495 | 14 |
| June 2026 | $5,016 | $4,346–$8,620 | 12 |
| May 2026 | $4,972 | $4,648–$9,455 | 20 |
| April 2026 | $6,102 | $4,767–$8,073 | 20 |
| March 2026 | $6,947 | $5,490–$9,996 | 16 |
| February 2026 | $6,900 | $5,506–$9,998 | 18 |
| January 2026 | $6,934 | $5,325–$8,617 | 10 |
| December 2025 | $6,899 | $4,750–$8,990 | 13 |
| November 2025 | $5,250 | $3,999–$7,791 | 10 |
| October 2025 | $5,850 | $5,100–$7,904 | 12 |
2006 Cadillac STS prices by state
| State | Typical price | Listed this year | Active now |
|---|---|---|---|
| California | $6,230 | 8 | 2 Shop 2005–2007 nearby → |
| Texas | $8,248 | 8 | 0 |
| Ohio | $5,990 | 7 | 3 Shop 2005–2007 nearby → |
| Florida | $7,638 | 6 | 1 Shop 2005–2007 nearby → |
| Georgia | $4,799 | 5 | 2 Shop 2005–2007 nearby → |
| Indiana | $5,500 | 5 | 1 Shop 2005–2007 nearby → |
Listed this year counts every 2006 Cadillac STS first listed in 2026 (sold and active), with currently active cars as a floor. Typical price is the median of each car's latest asking price — or the average of active listings where this-year data is thin.
Factory configurations of the 2006 Cadillac STS
7 factory configurations left the plant as a 2006 Cadillac STS — the most common are below, each decoded into its own build sheet from the VIN pattern.
Keep exploring STS prices
2006 Cadillac STS · $7,888 typical · 23 listingsOther Cadillac STS years
More 2006 Cadillac prices
Own a 2006 Cadillac STS? See what it's worth →
Frequently asked questions
Why do 2006 Cadillac STS prices range from $2,921 to $20,750?
The spread comes down to configuration and mileage: higher-mileage, base-configuration examples sit near the low end, while low-mileage and premium configurations reach the top. Half of all listings fall between $4,742 and $9,046 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2006 Cadillac STS?
Expect roughly $1,300 less for every 10,000 miles on the odometer. A 60K-mile example should cost about $3,900 less than a 30K-mile one of the same trim — check the fair-price-by-mileage table above for your band.
How many 2006 Cadillac STS are for sale right now?
23 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 23 active listings for this vehicle across dealer sites nationwide, updated every day. Average and median are computed from real asking prices on live listings. We exclude the top and bottom 2% of prices to reduce the influence of extreme values. This does not verify title status or guarantee that every erroneous listing is excluded. Prices reflect dealer asking prices — not final sale prices — and exclude taxes, fees, and incentives. Trim and mileage move the price more than any other factor; see the breakdowns above.
Want the original factory equipment and MSRP behind a specific car? Get the window sticker by VIN →
Shopping for this car?
Check individual VINs before you buy — decode the exact trim and mileage, see every active listing, and how each price compares to the local market.