Used 2006 Cadillac STS Price in the US
A used 2006 Cadillac STS in the US typically lists for $4,743–$9,338, with a median asking price of $6,950 across 23 active US dealer listings (as of 2026-08-30). The cheapest one listed right now is $2,950, a 2006 V8 in Winchester, KY — below 95% of the market, so expect an older model year, a base trim or high mileage.
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$3,3482006 Cadillac STS V6153,402 mi · Strongsville, OH · Serpentini Chevrolet - StrongsvilleView listing →
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These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2006 Cadillac STS asks $4,743–$9,338. Cars this far under usually carry an older model year, a base trim or high mileage.
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10 pinnedFAQ
How much does a used 2006 Cadillac STS cost?
A used 2006 Cadillac STS in the US typically lists for $4,743 to $9,338, with a median asking price of $6,950 across 23 active US dealer listings. Nine in ten are priced between $3,363 and $19,957 (as of 2026-08-30, source: UnderMarket Cars).
Is $7,000 a good price for a used 2006 Cadillac STS?
That sits at about the market median ($6,950) for a used 2006 Cadillac STS. Under $4,743 puts you in the cheapest quarter of active US listings and under $3,363 in the cheapest 5%; above $19,957 is the priciest 5% (as of 2026-08-30).
What is the cheapest used 2006 Cadillac STS for sale right now?
$2,950 — a 2006 Cadillac STS V8 in Winchester, KY, $4,000 under the median (as of 2026-08-30).
Are these MSRP or real asking prices?
Real asking prices from active US dealer listings, deduplicated by VIN — not manufacturer MSRP. They already reflect dealer discounts, and they exclude tax, title, registration and dealer fees.
How often are prices updated?
UnderMarket Cars refreshes US dealer listings continuously and re-generates this used 2006 Cadillac STS price page at least twice a day. The data date shown on this page is 2026-08-30.
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Prices updated 2026-08-30. Data covers active dealer listings across the USA.