Live US dealer listings Median-priced benchmark Updated 2026-10-19
Market price · Used 2021 GMC Yukon XL 1,916 listings tracked

Used 2021 GMC Yukon XL Price in the US

A used 2021 GMC Yukon XL in the US typically lists for $36,986–$44,659, with a median asking price of $40,632 across 1,916 active US dealer listings (as of 2026-10-19). The cheapest one listed right now is $19,863, a 2021 SLT in Saint George, UT — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.

Used 2021 GMC Yukon XL · asking prices1,916 listings
$30k$52k
Typical range
$36,986 – $44,659
Median
$40,632
Cheapest 5%
under $30,825
Cheapest listed now
$19,863

Browse by model year

typical price per year
More years (20)

Cheapest 10 listed right now

ranked by price
  1. 2021 GMC Yukon XL
    $19,863
    2021 GMC Yukon XL SLT
    178,769 mi · Saint George, UT · Second Chance Auto
    View listing →
  2. 2021 GMC Yukon XL
    $21,898
    2021 GMC Yukon XL SLT
    170,429 mi · Hollywood, FL · My Auto Source
    View listing →
  3. 2021 GMC Yukon XL
    $21,990
    2021 GMC Yukon XL SLE
    165,440 mi · Morrow, GA · ALM GMC South
    View listing →
  4. 2021 GMC Yukon XL
    $22,500
    2021 GMC Yukon XL SLT
    162,557 mi · LaPlace, LA · Bayou Ford
    View listing →
  5. 2021 GMC Yukon XL
    $22,650
    2021 GMC Yukon XL SLT
    222,958 mi · Pueblo, CO · Gallery Auto Auction
    View listing →
  6. $23,432
    2021 GMC Yukon XL SLT
    239,281 mi · Englewood, CO · Custom Cars West
    View listing →
  7. $23,500
    2021 GMC Yukon XL SLT
    184,594 mi · Freeport, NY · Autonation NY
    View listing →
  8. $23,590
    2021 GMC Yukon XL SLT
    162,030 mi · Saint petersburg, FL · Tampa Bay Wholesale Cars Inc
    View listing →
  9. $23,850
    2021 GMC Yukon XL SLT
    147,254 mi · Passaic, NJ · Nasa Auto
    View listing →
  10. 2021 GMC Yukon XL
    $23,900
    2021 GMC Yukon XL Denali
    151,795 mi · Hollywood, FL · D&J Autohub
    View listing →

These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2021 GMC Yukon XL asks $36,986–$44,659. Cars this far under: expect high mileage, a base trim or a branded title — check the vehicle history.

FAQ

How much does a used 2021 GMC Yukon XL cost?

A used 2021 GMC Yukon XL in the US typically lists for $36,986 to $44,659, with a median asking price of $40,632 across 1,916 active US dealer listings. Nine in ten are priced between $30,825 and $50,290 (as of 2026-10-19, source: UnderMarket Cars).

Is $41,000 a good price for a used 2021 GMC Yukon XL?

That sits at about the market median ($40,632) for a used 2021 GMC Yukon XL. Under $36,986 puts you in the cheapest quarter of active US listings and under $30,825 in the cheapest 5%; above $50,290 is the priciest 5% (as of 2026-10-19).

What is the cheapest used 2021 GMC Yukon XL for sale right now?

$19,863 — a 2021 GMC Yukon XL SLT in Saint George, UT, $20,769 under the median (as of 2026-10-19).

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 2021 GMC Yukon XL page is regenerated from it when it is requested. The figures on this page are from 2026-10-19.

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Prices updated 2026-10-19. Data covers active dealer listings across the USA.