Used 2006 Cadillac STS Price in the US
A used 2006 Cadillac STS in the US typically lists for $5,000–$8,990, with a median asking price of $7,888 across 17 active US dealer listings (as of 2026-10-17). The cheapest one listed right now is $2,900, a 2006 V6 in Norman Park, GA — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.
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$4,9952006 Cadillac STS V6106,824 mi · Fort Wayne, IN · Professional Auto Sales & ServiceView listing → -
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$8,1002006 Cadillac STS V6125,772 mi · North Charleston, SC · Northwoods AutomotiveView listing →
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 $5,000–$8,990. Cars this far under: expect high mileage, a base trim or a branded title — check the vehicle history.
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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 $5,000 to $8,990, with a median asking price of $7,888 across 17 active US dealer listings. Nine in ten are priced between $3,380 and $15,877 (as of 2026-10-17, source: UnderMarket Cars).
Is $8,000 a good price for a used 2006 Cadillac STS?
That sits at about the market median ($7,888) for a used 2006 Cadillac STS. Under $5,000 puts you in the cheapest quarter of active US listings and under $3,380 in the cheapest 5%; above $15,877 is the priciest 5% (as of 2026-10-17).
What is the cheapest used 2006 Cadillac STS for sale right now?
$2,900 — a 2006 Cadillac STS V6 in Norman Park, GA, $4,988 under the median (as of 2026-10-17).
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?
The listing data behind UnderMarket Cars is rebuilt from live US dealer inventory every few hours, and this used 2006 Cadillac STS page is regenerated from it when it is requested. The figures on this page are from 2026-10-17.
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Prices updated 2026-10-17. Data covers active dealer listings across the USA.