2021 GMC Sierra

$12,994
from
2,481
listings
$13K–$70K
price range
Download Infographic
Low$12,994
High$70,000
From$12,994
Avg Mileage78,265 mi
Fresh

Sourced from 2,481 active dealer listings as of

2021 GMC Sierra Trims

All Trims Combined
From$12,994
$13K–$70K
2,481 listings78,265 avg miles
AT4
From$18,600
9,750 listings|$19K–$133K
AT4X
From$35,491
3,929 listings|$35K–$109K
Denali
From$4,500
11,676 listings|$5K–$104K
Denali Ultimate
From$44,601
3,546 listings|$45K–$101K
Elevation
From$13,500
18,101 listings|$14K–$97K
Limited
From$12,459
31 listings|$12K–$30K
Pro
From$12,980
6,540 listings|$13K–$69K
SL
From$2,709
45 listings|$3K–$21K
SLE
From$1,650
4,915 listings|$2K–$70K
SLT
From$1,500
15,792 listings|$2K–$140K
W/T
From$3,000
99 listings|$3K–$25K

2021 GMC Sierra Pricing

Price Trend

-0.7%
$13K$19K$25K$31K$37KMar 26Mar 26Mar 26$13,900
3 data pointsAs of Mar 26

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GMC Sierra Fuel Economy

16–26mpg combined
·
15-23city
·
20-30hwy
·
$2,100-$3,400/yr

The 2021 GMC Sierra delivers 16 to 26 MPG combined across 20 powertrain combinations. If fuel cost matters to you, pay attention to engine and drivetrain. The spread is significant.

By Trim
Sierra 2WD - Automatic 10-spd
26mpg
3.0L 6-cyl Turbo · Rear-Wheel DriveDiesel
23 city30 hwy~$2,150/yr5/10 Average
Sierra 4WD - Automatic 10-spd
24mpg
3.0L 6-cyl Turbo · 4-Wheel DriveDiesel
22 city26 hwy~$2,300/yr4/10 Average
Sierra 2WD - Automatic 8-spd
21mpg
2.7L 4-cyl Turbo · Rear-Wheel Drive
20 city23 hwy~$2,100/yr4/10 Average
Sierra 2WD - Automatic 8-spd
19mpg
5.3L 8-cyl · Rear-Wheel Drive
17 city23 hwy~$2,300/yr3/10 Poor
Sierra 4WD - Automatic 10-spd
19mpg
5.3L 8-cyl · 4-Wheel Drive
16 city22 hwy~$2,300/yr3/10 Poor
Sierra 4WD - Automatic 8-spd
19mpg
2.7L 4-cyl Turbo · 4-Wheel Drive
18 city21 hwy~$2,300/yr3/10 Poor
Sierra 4WD - Automatic 8-spd
18mpg
5.3L 8-cyl · 4-Wheel Drive
16 city21 hwy~$2,450/yr3/10 Poor
Sierra 2WD - Automatic 6-spd
17mpg
5.3L 8-cyl · Rear-Wheel Drive
15 city21 hwy~$2,600/yr3/10 Poor
Sierra 2WD - Automatic 6-spd
17mpg
4.3L 6-cyl · Rear-Wheel Drive
16 city21 hwy~$2,600/yr3/10 Poor
Sierra 4WD - Automatic 10-spd
17mpg
6.2L 8-cyl · 4-Wheel Drive
16 city20 hwy~$3,400/yr3/10 Poor
Sierra 4WD - Automatic 6-spd
17mpg
5.3L 8-cyl · 4-Wheel Drive
15 city20 hwy~$2,600/yr3/10 Poor
Sierra 4WD - Automatic 6-spd
17mpg
4.3L 6-cyl · 4-Wheel Drive
15 city20 hwy~$2,600/yr3/10 Poor

Source: U.S. Environmental Protection Agency (EPA)

Where to Find 2021 GMC Sierra

39States

Texas has the most inventory at 13%, with options spread across 39 states. Willing to ship? Your selection opens up significantly.

Geographic distribution reflects all active listings for this model, not just 2021.

2021 GMC Sierra: Questions Buyers Ask

Pricing, reliability, and ownership answers

Is the 2021 GMC Sierra a good car to buy?

The 2021 GMC Sierra has its strengths and its watch-outs. Check the safety section for recall details and the pricing data to see if the numbers work for you.

What's the gas mileage of the 2021 GMC Sierra?

Depending on configuration, the 2021 GMC Sierra delivers 16–26 MPG combined. Choose wisely. The full comparison shows how engine choice affects your wallet.

How does the 2021 compare to other GMC Sierra years?

Each GMC Sierra model year has different pricing, recall counts, and owner satisfaction patterns. Compare all available years on the GMC Sierra overview page.

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