Used 2021 GMC Sierra 1500 for Sale near Decatur, IL
614 results
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Quicksilver Metallic
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 60,704
- Stock #:
- QBP6531
- VIN:
- 3GTP8CED4MG269785
Sponsored by Leman's Chevy City
2021 GMC Sierra 1500
Elevation Crew Cab RWD
60,704 mi
$32,314
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Summit White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black Leather
- Transmission:
- Automatic
- Mileage:
- 78,974
- Stock #:
- 20194A
- VIN:
- 3GTU9DET8MG432502
Sponsored Listing
2021 GMC Sierra 1500
SLT Crew Cab 4WD
78,974 mi
$34,889
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Summit White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 99,216
- Stock #:
- B154
- VIN:
- 1GTU9DET4LZ243358
Sponsored Listing
2020 GMC Sierra 1500
SLT Crew Cab 4WD
99,216 mi
$32,111
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 52,857
- Stock #:
- C20245PC
- VIN:
- 1GTU9AEF0LZ215288
2020 GMC Sierra 1500
Crew Cab 4WD
52,857 mi
$30,757
- Year:
- 2022
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 53,437
- Stock #:
- QBP6433B
- VIN:
- 3GTUUGETXNG623078
2022 GMC Sierra 1500
Denali Crew Cab 4WD
53,437 mi
$44,814
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Black
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 26,080
- Stock #:
- 27217954
- VIN:
- 3GTP8FED7MG230173
2021 GMC Sierra 1500
Denali Crew Cab RWD
26,080 mi
$44,297
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Summit White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 125,519
- Stock #:
- 26072A
- VIN:
- 3GTU9DET4MG334325
2021 GMC Sierra 1500
SLT Crew Cab 4WD
125,519 mi
$28,443
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Summit White
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 162,333
- Stock #:
- 39199A
- VIN:
- 3GTU9DEDXLG436879
2020 GMC Sierra 1500
SLT Crew Cab 4WD
162,333 mi
$23,999
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 99,187
- Stock #:
- K447832C
- VIN:
- 3GTU9DEDXLG320999
2020 GMC Sierra 1500
SLT Crew Cab 4WD
99,187 mi
$29,912
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Quicksilver Metallic
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 84,734
- Stock #:
- 5014R
- VIN:
- 3GTU9CED3MG146737
2021 GMC Sierra 1500
Elevation Crew Cab 4WD
84,734 mi
$30,779
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Transmission:
- 8-Speed Automatic
- Mileage:
- 50,311
- Stock #:
- P1698
- VIN:
- 3GTU9CED7MG307557
2021 GMC Sierra 1500
Elevation Crew Cab 4WD
50,311 mi
$37,712
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Pacific Blue Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 74,963
- Stock #:
- CP16143A
- VIN:
- 1GTU9FEL2LZ106446
2020 GMC Sierra 1500
Denali Crew Cab 4WD
74,963 mi
$37,595
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Summit White
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 79,968
- Stock #:
- AL461225
- VIN:
- 3GTU9CET7MG461225
2021 GMC Sierra 1500
Elevation Crew Cab 4WD
79,968 mi
$32,074
CarGurus Analysis:
2021 GMC Sierra 1500
With 6,780 currently listed for sale and an average price of $36,213.00, 31.4% of 2021 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2021 GMC Sierra 1500 4.9 / 5 stars.
80.4% of 2021 GMC Sierra 1500 models on CarGurus are accident free.
The 2021 GMC Sierra 1500 features luxurious attributes, exceptional engine performance, advanced technology, and enhanced comfort, making it a strong contender in the full-size pickup market.
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Pacific Blue Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 45,261
- Stock #:
- P6046
- VIN:
- 3GTU9DEL1MG456818
-$1,167
2021 GMC Sierra 1500
SLT Crew Cab 4WD
45,261 mi
$37,186
$36,019
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Silver
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Gray
- Transmission:
- Automatic
- Mileage:
- 133,645
- Stock #:
- TR41850
- VIN:
- 3GTU9CET6LG412290
2020 GMC Sierra 1500
Elevation Crew Cab 4WD
133,645 mi
$25,873
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Quicksilver Metallic
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 60,704
- Stock #:
- QBP6531
- VIN:
- 3GTP8CED4MG269785
2021 GMC Sierra 1500
Elevation Crew Cab RWD
60,704 mi
$32,314
- Year:
- 2022
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 10,707
- Stock #:
- U2694
- VIN:
- 1GTUUAED9NZ565521
2022 GMC Sierra 1500
Pro Crew Cab 4WD
10,707 mi
$33,537
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Quicksilver Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 130,865
- Stock #:
- 4023
- VIN:
- 3GTU9DETXLG430023
2020 GMC Sierra 1500
SLT Crew Cab 4WD
130,865 mi
$28,260
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Pacific Blue Metallic
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 63,659
- Stock #:
- 26PP-74A
- VIN:
- 1GTU9CED5MZ103873
2021 GMC Sierra 1500
Elevation Crew Cab 4WD
63,659 mi
$35,294
- Year:
- 2022
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 37,307
- Stock #:
- 22715
- VIN:
- 3GTPHGED9NG596790
2022 GMC Sierra 1500
Denali Crew Cab RWD
37,307 mi
$43,937
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- White Frost Tricoat
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Dark Walnut/Dark Ash Grey)
- Transmission:
- Automatic
- Mileage:
- 134,413
- Stock #:
- SF026468B
- VIN:
- 3GTU9FELXLG214183
2020 GMC Sierra 1500
Denali Crew Cab 4WD
134,413 mi
$32,768
- Year:
- 2022
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Titanium Rush Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 34,290
- Stock #:
- P8115-1
- VIN:
- 3GTUUDET4NG567699
2022 GMC Sierra 1500
SLT Crew Cab 4WD
34,290 mi
$42,859
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Cardinal Red
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 50,398
- Stock #:
- YP245
- VIN:
- 3GTU9EET3MG378337
Sponsored Listing
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
50,398 mi
$38,950
CarGurus Analysis: 2021 GMC Sierra 1500
overall
Summary
With 6,780 currently listed for sale and an average price of $36,213.00, 31.4% of 2021 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2021 GMC Sierra 1500 4.9 / 5 stars.
80.4% of 2021 GMC Sierra 1500 models on CarGurus are accident free.
The 2021 GMC Sierra 1500 features luxurious attributes, exceptional engine performance, advanced technology, and enhanced comfort, making it a strong contender in the full-size pickup market.
Why it stands out
The 2021 GMC Sierra 1500 stands out with its blend of luxury and rugged capability. Known for its stylish design and upscale features, this pickup truck is a favorite among those who seek comfort alongside utility. The availability of multiple powertrain options, including an efficient turbodiesel engine that offers impressive towing capacity, positions the Sierra 1500 as a versatile choice for both work and play. Despite some criticism regarding interior materials, owners consistently praise its advanced technology and overall performance, especially with the added luxury of the Denali trim. Additionally, the 2021 model offers several noteworthy features such as a unique carbon-fiber composite cargo bed and a sophisticated infotainment system, enhancing its appeal.
Other model years to consider
- Average price: $43,725.00
- Good/great deal percentage: 32.4%
- User rating: 5 / 5
- Total listings: 9,275
- Average price: $50,363.00
- Good/great deal percentage: 33.6%
- User rating: 4.6 / 5
- Total listings: 9,600
- Average price: $53,257.00
- Good/great deal percentage: 33.2%
- User rating: 5 / 5
- Total listings: 9,578
This analysis is based on CarGurus' proprietary market data from June 15, 2026, CarGurus experts' opinions, and generative AI.
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5.0 Overall rating
Filter by rating
Matthew B
Reviewed a 2021 GMC AT4 Crew Cab 4WD on Jan 7, 2025
Best truck I have driven! Highway speeds are great and feels like I’m driving a Cadillac.
Brandon S
Reviewed a 2021 GMC SLT Crew Cab 4WD on Apr 1, 2026
Love the SLT and all the features it has definitely a great value and good driving truck with good suspension and quality
Donald P
Reviewed a 2021 GMC Sierra 1500 on Oct 8, 2023
I love everything about this truck, so much I bought one. I got one with the 3liter duramax. Hopefully it’ll be the last truck I’ll ever own.
Randy R
Reviewed a 2021 GMC Sierra 1500 on Jun 6, 2023
The features on the 2021 GMC Sierra was everything and more then what I expected. The value of the truck was decent considering the times we live in now. Would highly recommend GMC so far
2021 GMC Sierra 1500 Trims
| Trim type | MSRP |
|---|---|
| Elevation Crew Cab RWD | $45,700 |
| Elevation Double Cab 4WD | $46,400 |
| SLT Crew Cab RWD | $47,500 |
| SLE Crew Cab 4WD | $47,100 |
| Elevation Crew Cab 4WD | $49,000 |
| Denali Crew Cab 4WD | $59,300 |
| SLT Crew Cab 4WD | $50,800 |
| AT4 Crew Cab 4WD | $54,700 |
2021 GMC Sierra 1500 Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2021 GMC Sierra 1500 prices has changed over time.
See more price trends2021 GMC Sierra 1500 Pricing Analysis
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest Prices in Chicago: The market in Chicago, IL ($36,127) presents the highest average price, reflective of strong demand and lower inventory turnover.
- Best Value in Miami: Miami, FL ($33,528) offers the lowest average price, indicating a more competitive market with better value for shoppers.
- Stable Pricing with Inventory Availability: Cities like Houston (617 listings) and Atlanta (661 listings) show balanced pricing close to the regional average, pointing to stable inventory levels and demand.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Chicago, IL | 599 | $36,127 |
| Philadelphia, PA | 491 | $35,673 |
| New York, NY | 470 | $35,900 |
| Houston, TX | 617 | $35,220 |
| Los Angeles, CA | 322 | $33,967 |
| Miami, FL | 372 | $33,528 |
| Dallas, TX | 226 | $34,422 |
| Boston, MA | 475 | $34,986 |
| Washington, DC | 487 | $37,480 |
| Atlanta, GA | 661 | $35,826 |
Pricing Analysis by Model Year
Key Insights
- Significant New-Car Premium: The 2026 GMC Sierra 1500 is priced at $61,779, reflecting a premium of +61.5% over its MSRP, indicative of strong demand for the latest models.
- Declining Values for Older Models: The 2014 GMC Sierra 1500 shows a decline in value, priced at $17,073, a depreciation of -34.0% from its original MSRP.
- Moderate Depreciation Trends: The 2022 GMC Sierra 1500 has a current average price of $43,627, which is -2.1% below MSRP, indicating stable market positioning for newer models.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 GMC Sierra 1500 | $38,300 | $61,779 | +61.5% |
| 2025 GMC Sierra 1500 | $38,300 | $53,819 | +40.4% |
| 2024 GMC Sierra 1500 | $37,700 | $50,736 | +34.6% |
| 2023 GMC Sierra 1500 | $37,100 | $46,662 | +25.7% |
| 2022 GMC Sierra 1500 | $35,400 | $43,627 | -2.1% |
| 2020 GMC Sierra 1500 | $29,600 | $33,829 | +14.2% |
| 2019 GMC Sierra 1500 | $29,600 | $32,337 | +2.5% |
| 2018 GMC Sierra 1500 | $29,000 | $26,496 | -8.6% |
| 2017 GMC Sierra 1500 | $28,405 | $23,516 | -17.3% |
| 2016 GMC Sierra 1500 | $27,815 | $21,074 | -24.4% |
| 2015 GMC Sierra 1500 | $26,670 | $19,687 | -26.2% |
| 2014 GMC Sierra 1500 | $26,075 | $17,073 | -34.0% |
These recommendations are based on CarGurus' proprietary market data from June 18, 2026, CarGurus experts' opinions, and generative AI.
