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2021 GMC Sierra market value, prices & key facts

What dealers are asking for the 2021 GMC Sierra right now, from 14 current listings at 14 dealerships across 9 states, with EPA fuel economy, NHTSA safety ratings and recalls for this model year.

Asking prices of current listings · AutosXchange live dealer listings, November 7, 2026 · not sold prices

14Listings for sale now
$38,348Median asking price
$32,267–$55,041Typical range (10th–90th percentile)
81,471Median miles (14 listings with odometer)
14Dealerships listing it
See 2021 GMC Sierra listingsAll GMC Sierra yearsOther GMC models
In brief

2021 GMC Sierra overview

AutosXchange has 14 listed now, with a median asking price of $38,348 and median 81,471 miles.

Composed only from U.S. government data (EPA, NHTSA) and current AutosXchange listings; not a review.
Market snapshot

2021 GMC Sierra: the market right now

Half of the 14 listings ask between $35,340 and $43,490.

$35,34025th percentile asking price
$38,348Median asking price
$43,49075th percentile asking price
81,471Median miles (middle half 64,576–94,869)
0Listings with a price cut since first listed
14Cities with listings

New vs. used (by odometer)

New or demo (under 100 mi): 0Used (100+ mi): 14

Top cities by supply

2021 GMC Sierra listings by cityTroy, AL: 1 listings, median $35,999; Paragould, AR: 1 listings, median $35,995; Springdale, AR: 1 listings, median $32,900; Kennesaw, GA: 1 listings, median $57,889; Lafayette, LA: 1 listings, median $41,973; Biddeford, ME: 1 listings, median $65,995; Union, ME: 1 listings, median $37,995; Windsor, ME: 1 listings, median $48,394.Troy, ALTroy, AL: 1 · median $36k1 · median $36kParagould, ARParagould, AR: 1 · median $36k1 · median $36kSpringdale, ARSpringdale, AR: 1 · median $32.9k1 · median $32.9kKennesaw, GAKennesaw, GA: 1 · median $57.9k1 · median $57.9kLafayette, LALafayette, LA: 1 · median $42k1 · median $42kBiddeford, MEBiddeford, ME: 1 · median $66k1 · median $66kUnion, MEUnion, ME: 1 · median $38k1 · median $38kWindsor, MEWindsor, ME: 1 · median $48.4k1 · median $48.4k
Price cuts: listings whose current asking price is below the price first recorded by AutosXchange (0 were raised). New vs. used is read from the odometer (under 100 miles = new or demo) because most dealer feeds carry no new/used flag.
Price vs. mileage

2021 GMC Sierra: asking price vs. mileage

Asking price shows no clear link to mileage in current listings.

2021 GMC Sierra asking price vs. mileageScatter of 11 current 2021 GMC Sierra listings (asking price against odometer miles), with a least-squares trend line of about $890 per 10,000 miles.$30k$35k$40k$45k$50k$55k$60k020k40k60k80k100k120kOdometer (miles)Asking price
Each dot is one current listing; the line is a straight least-squares fit over all of them. 3 extreme listings (top/bottom 1% of price or mileage) are outside the chart.
Price distribution

2021 GMC Sierra: how asking prices are spread

Half of listings ask between $35,340 and $43,490; the most common band is $35,000–$37,500 (3 listings).

2021 GMC Sierra asking price distributionHistogram of 14 current 2021 GMC Sierra asking prices in 15 bins of $2,500; median $38,348.0123$27.5k–$30k: 1 listing (includes 1 below $27.5k)$30k–$32.5k: 1 listing$32.5k–$35k: 1 listing$35k–$37.5k: 3 listings$37.5k–$40k: 3 listings$40k–$42.5k: 1 listing$42.5k–$45k: 1 listing$45k–$47.5k: 0 listings$47.5k–$50k: 1 listing$50k–$52.5k: 0 listings$52.5k–$55k: 0 listings$55k–$57.5k: 0 listings$57.5k–$60k: 1 listing$60k–$62.5k: 0 listings$62.5k–$65k: 1 listing (includes 1 above $65k)≤$27.5k$35k$42.5k$50k$57.5k$65k+Median $38,348Asking price (bar height = number of listings)
Bars count listings in $2,500 price bands; the dashed line marks the median. The outer bars also include the lowest and highest 1% of prices.
Where they are listed

2021 GMC Sierra: listings by state

Maine has the most, with 3 listings (21% of 14).

2021 GMC Sierra listings by stateNumber of current 2021 GMC Sierra listings by dealer state: Maine 3, Arkansas 2, Montana 2, Texas 2, Alabama 1, Georgia 1, Louisiana 1, Michigan 1, Utah 1.MaineMaine: 3 · 21%3 · 21%ArkansasArkansas: 2 · 14%2 · 14%MontanaMontana: 2 · 14%2 · 14%TexasTexas: 2 · 14%2 · 14%AlabamaAlabama: 1 · 7%1 · 7%GeorgiaGeorgia: 1 · 7%1 · 7%LouisianaLouisiana: 1 · 7%1 · 7%MichiganMichigan: 1 · 7%1 · 7%UtahUtah: 1 · 7%1 · 7%
Counts current AutosXchange listings by the selling dealer's state (9 states in total).
By trim

2021 GMC Sierra: listings by trim (top 3)

Denali is the most-listed trim (3 listings); Denali has the highest median asking price of these, $57,889.

2021 GMC Sierra listings by trimDenali: 3 listings, median $57,889; AT4: 3 listings, median $41,973; Elevation: 3 listings, median $35,122.DenaliDenali: 3 · median $57.9k3 · median $57.9kAT4AT4: 3 · median $42k3 · median $42kElevationElevation: 3 · median $35.1k3 · median $35.1k
Trim is read from the listing title (the word after the model name), so it is approximate. Trims with fewer than 3 listings are not shown.
Current listings

2021 GMC Sierra for sale now: best value first

2021 GMC Sierra Elevation for sale in Canton, TX27% below similar
2021 GMC Sierra Elevation$27,22096,105 mi · Canton, TXI20 Chrysler Dodge Jeep Ram
2021 GMC Sierra for sale in Jacksonville, TX15% below similar
2021 GMC Sierra$31,99591,160 mi · Jacksonville, TXAPACHE AUTO SALES
2021 GMC Sierra 1500HD Classic for sale in Springdale, AR12% below similar
2021 GMC Sierra 1500HD Classic$32,900125,098 mi · Springdale, ARLiberty Automotive
2021 GMC Sierra Elevation for sale in Laurel, MT6% below similar
2021 GMC Sierra Elevation$35,12271,186 mi · Laurel, MTLaurel Ford
2021 GMC Sierra SLT Crew Cab V8, for sale in Paragould, AR
2021 GMC Sierra SLT Crew Cab V8,$35,99583,690 mi · Paragould, ARGlen Sain Ford Inc.
2021 GMC Sierra Elevation for sale in Troy, AL
2021 GMC Sierra Elevation$35,99948,658 mi · Troy, ALMATZ Nissan
2021 GMC SIERRA AT4 for sale in Union, ME
2021 GMC SIERRA AT4$37,99590,511 mi · Union, MEKSR Auto Sales
2021 GMC Sierra for sale in Livingston, MT
2021 GMC Sierra$38,70050,035 mi · Livingston, MTBig Sky Auto
2021 GMC SIERRA for sale in Perry, MI
2021 GMC SIERRA$38,90062,373 mi · Perry, MIMichigan's Largest Independent Truck Dealership
2021 GMC Sierra AT4 Carbon Pro Diesel for sale in Lafayette, LA
2021 GMC Sierra AT4 Carbon Pro Diesel$41,97379,252 mi · Lafayette, LACourtesy Lincoln
2021 GMC Sierra Denali for sale in Orem, UT
2021 GMC Sierra Denali$43,995105,140 mi · Orem, UTKonig Automotive Group
2021 GMC SIERRA AT4 for sale in Windsor, ME
2021 GMC SIERRA AT4$48,394116,659 mi · Windsor, MEASA Family Auto Sales
2021 GMC Sierra Denali for sale in Kennesaw, GA
2021 GMC Sierra Denali$57,88973,841 mi · Kennesaw, GATown Center Nissan
2021 GMC Sierra Denali Crew Cab 4WD for sale in Biddeford, ME
2021 GMC Sierra Denali Crew Cab 4WD$65,9953,896 mi · Biddeford, MEBob's Auto Sales
See all 14 2021 GMC Sierra listings
Sorted by how far each asking price is below the median of the same model within one model year (all current listings nationwide). Badges show listings at least 5% below that median. Listings priced under 60% of that median (often data errors or damaged vehicles) and model years with fewer than 5 comparable listings are listed after the ranked ones.
AutosXchange Intel

2021 GMC Sierra price activity

AutosXchange started tracking 2021 GMC Sierra prices on Nov 5, 2026. Price-activity trends appear once at least 30 listings from 5 dealers are tracked nationally.

Source: AutosXchange Intel Hub, autos-xchange.com/market. Asking prices of dealer listings tracked by AutosXchange since Nov 5, 2026, not sold prices; not seasonally adjusted. A market figure is published only with at least 30 listings from at least 5 dealers (no dealer above 40%). "Removed from sale" means a listing left the dealer's website; it is not a confirmed sale. Methodology
AutosXchange Intel Hub

Latest price changes: 2021 GMC Sierra

0 cuts and 1 raises in the last 30d.

  • ▲ Raise+$225 (+1.0%) · 2021 GMC Sierra SLE$23,314 → $23,539 · Space City Toyota, Humble, TX · 1 d ago
All price changes in the AutosXchange Intel Hub →

Source: AutosXchange Intel Hub, autos-xchange.com/market, 2026-11-07.

By model year

GMC Sierra market data by model year

Listings and median asking price per model year. Years with fewer than 5 listings link to the listings.
Shop locally

2021 GMC Sierra for sale by city

FAQ

Frequently asked questions

What is the average asking price of a 2021 GMC Sierra?
Across 14 current listings on AutosXchange, the median asking price of a 2021 GMC Sierra is $38,348. Most listings (10th to 90th percentile) ask between $32,267 and $55,041. These are dealer asking prices, not sold prices.
How many GMC Sierra are for sale?
AutosXchange currently lists 14 vehicles from 14 dealerships in 9 states.
What mileage is typical for a 2021 GMC Sierra?
The median odometer reading is 81,471 miles; the middle half of listings show between 64,576 and 94,869 miles (14 listings with a published odometer).
What is a fair asking price for a 2021 GMC Sierra?
Half of current listings ask between $35,340 and $43,490 (25th to 75th percentile), around a median of $38,348. Compare mileage, trim, condition and the vehicle history report before deciding; AutosXchange figures are asking prices, not sold prices.
Where are the most GMC Sierra for sale?
Maine has the most current listings (3), followed by Arkansas (2).

AutosXchange market data is calculated from the asking prices of current dealer listings on AutosXchange, refreshed as dealers update their inventory. These are not sold or transaction prices and not appraisals. Listings with an asking price under $500 (placeholder prices) are excluded. Confirm price, fees and availability with the selling dealer.