Skip to main content
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed
Skip to Filters
  • Black 2021 GMC Sierra 1500 SLTBlack 2021 GMC Sierra 1500 SLTBlack 2021 GMC Sierra 1500 SLTBlack 2021 GMC Sierra 1500 SLTBlack 2021 GMC Sierra 1500 SLTBlack 2021 GMC Sierra 1500 SLT

    $41,794

    $201
    19,524 mi.
    Est. $758/mo

    Meadowland of Carmel

    4.2
    Check Availability
    Carmel, NY (24 mi)
    Quick view
  • Satin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 Elevation

    $26,952

    105,736 mi.
    Est. $489/mo

    Loehmann-Blasius Chevrolet

    4.1
    Check Availability
    Waterbury, CT (19 mi)
    Quick view
  • Blue 2021 GMC Sierra 1500 AT4Blue 2021 GMC Sierra 1500 AT4Blue 2021 GMC Sierra 1500 AT4Blue 2021 GMC Sierra 1500 AT4Blue 2021 GMC Sierra 1500 AT4Blue 2021 GMC Sierra 1500 AT4

    $34,875

    141,300 mi.
    Est. $632/mo

    Private seller: Chip

    Contact Seller
    Newtown, CT (7 mi)
    Quick view
  • Quicksilver Metallic 2021 GMC Sierra 1500 ElevationQuicksilver Metallic 2021 GMC Sierra 1500 ElevationQuicksilver Metallic 2021 GMC Sierra 1500 ElevationQuicksilver Metallic 2021 GMC Sierra 1500 ElevationQuicksilver Metallic 2021 GMC Sierra 1500 ElevationQuicksilver Metallic 2021 GMC Sierra 1500 Elevation

    $33,995

    81,478 mi.
    Est. $616/mo

    J & M Automotive

    4.9
    Check Availability
    Naugatuck, CT (14 mi)
    Quick view
  • Cardinal Red 2021 GMC Sierra 1500 SLTCardinal Red 2021 GMC Sierra 1500 SLTCardinal Red 2021 GMC Sierra 1500 SLT

    $32,995

    91,289 mi.
    Est. $598/mo

    J & M Automotive

    4.9
    Check Availability
    Naugatuck, CT (14 mi)
    Quick view
  • Summit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 Elevation

    $32,500

    69,754 mi.
    Est. $589/mo

    GMC of Watertown

    3.8
    Check Availability
    Watertown, CT (18 mi)
    Quick view
  • Dark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLE

    $24,994

    106,313 mi.
    Est. $453/mo

    Blasius Pre-Owned Auto

    3.7
    Check Availability
    Waterbury, CT (18 mi)
    Quick view
  • Dark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLE

    $34,579

    36,508 mi.
    Est. $627/mo

    Blasius of Bristol

    3.6
    Check Availability
    Bristol, CT (29 mi)
    Quick view
  • White Frost Tricoat 2021 GMC Sierra 1500 SLTWhite Frost Tricoat 2021 GMC Sierra 1500 SLTWhite Frost Tricoat 2021 GMC Sierra 1500 SLTWhite Frost Tricoat 2021 GMC Sierra 1500 SLTWhite Frost Tricoat 2021 GMC Sierra 1500 SLTWhite Frost Tricoat 2021 GMC Sierra 1500 SLT

    $32,994

    $571
    68,463 mi.
    Est. $598/mo

    Blasius Pre-Owned Auto

    3.7
    Check Availability
    Waterbury, CT (18 mi)
    Quick view
  • White Frost Tri-Coat 2021 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2021 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2021 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2021 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2021 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2021 GMC Sierra 1500 SLT

    $36,989

    44,239 mi.
    Est. $671/mo

    Blasius Mitsubishi

    3.1
    Check Availability
    Brookfield, CT (13 mi)
    Quick view
  • Onyx Black 2021 GMC Sierra 1500 DenaliOnyx Black 2021 GMC Sierra 1500 DenaliOnyx Black 2021 GMC Sierra 1500 DenaliOnyx Black 2021 GMC Sierra 1500 DenaliOnyx Black 2021 GMC Sierra 1500 DenaliOnyx Black 2021 GMC Sierra 1500 Denali

    $34,000

    89,721 mi.
    Est. $616/mo

    Blasius Pre-Owned Auto

    3.7
    Check Availability
    Waterbury, CT (18 mi)
    Quick view
  • Pacific Blue Metallic 2021 GMC Sierra 1500 ElevationPacific Blue Metallic 2021 GMC Sierra 1500 ElevationPacific Blue Metallic 2021 GMC Sierra 1500 ElevationPacific Blue Metallic 2021 GMC Sierra 1500 ElevationPacific Blue Metallic 2021 GMC Sierra 1500 ElevationPacific Blue Metallic 2021 GMC Sierra 1500 Elevation

    $32,498

    $400
    62,051 mi.
    Est. $589/mo

    Loehmann-Blasius Chevrolet

    4.1
    Check Availability
    Waterbury, CT (19 mi)
    Quick view
  • White Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 Denali

    $39,433

    $400
    59,174 mi.
    Est. $715/mo

    Loehmann-Blasius Chevrolet

    4.1
    Check Availability
    Waterbury, CT (19 mi)
    Quick view
  • White Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 Denali

    $31,000

    95,820 mi.
    Est. $562/mo

    Ingersoll Auto of Danbury

    4.0
    Check Availability
    Danbury, CT (12 mi)
    Quick view
  • $32,994

    110,568 mi.
    Est. $598/mo

    Blasius Pre-Owned Auto

    3.7
    Check Availability
    Waterbury, CT (18 mi)
    Quick view
  • $33,999

    $991
    31,435 mi.
    Est. $616/mo

    Meadowland of Carmel

    4.2
    Check Availability
    Carmel, NY (24 mi)
    Quick view
  • Not Priced

    0 mi.

    Meadowland of Carmel

    4.2
    Check Availability
    Carmel, NY (24 mi)
    Quick view
  • Not Priced

    43,269 mi.
    Est. $0/mo

    Blasius GMC

    2.6
    Check Availability
    Branford, CT (24 mi)
    Quick view
  • Cayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 Elevation

    $32,495

    72,076 mi.
    Est. $589/mo

    Bob Johnson Used

    4.0
    Check Availability
    $399 delivery from Rochester, NY (254 mi)
    Quick view
  • Black 2021 GMC Sierra 1500 ElevationBlack 2021 GMC Sierra 1500 ElevationBlack 2021 GMC Sierra 1500 ElevationBlack 2021 GMC Sierra 1500 ElevationBlack 2021 GMC Sierra 1500 ElevationBlack 2021 GMC Sierra 1500 Elevation

    $36,998

    50,372 mi.
    Est. $671/mo

    CarMax Hartford

    Check Availability
    Free delivery to East Haven, CT (19 mi)
    Quick view
  • Black 2021 GMC Sierra 1500 ElevationBlack 2021 GMC Sierra 1500 ElevationBlack 2021 GMC Sierra 1500 ElevationBlack 2021 GMC Sierra 1500 ElevationBlack 2021 GMC Sierra 1500 ElevationBlack 2021 GMC Sierra 1500 Elevation

    $36,998

    50,372 mi.
    Est. $671/mo

    CarMax Hartford

    Check Availability
    Hartford, CT (43 mi)
    Quick view
  • Summit White 2021 GMC Sierra 1500 SLTSummit White 2021 GMC Sierra 1500 SLTSummit White 2021 GMC Sierra 1500 SLTSummit White 2021 GMC Sierra 1500 SLTSummit White 2021 GMC Sierra 1500 SLTSummit White 2021 GMC Sierra 1500 SLT

    $34,990

    76,005 mi.
    Est. $634/mo

    European Motorcars

    4.0
    Check Availability
    Middletown, CT (34 mi)
    Quick view
  • White 2021 GMC Sierra 1500 AT4White 2021 GMC Sierra 1500 AT4White 2021 GMC Sierra 1500 AT4White 2021 GMC Sierra 1500 AT4White 2021 GMC Sierra 1500 AT4White 2021 GMC Sierra 1500 AT4

    $47,998

    39,517 mi.
    Est. $870/mo

    CarMax Hartford

    Check Availability
    Hartford, CT (43 mi)
    Quick view
  • Red 2021 GMC Sierra 1500 AT4Red 2021 GMC Sierra 1500 AT4Red 2021 GMC Sierra 1500 AT4Red 2021 GMC Sierra 1500 AT4Red 2021 GMC Sierra 1500 AT4Red 2021 GMC Sierra 1500 AT4

    $42,998

    58,123 mi.
    Est. $780/mo

    CarMax Hartford

    Check Availability
    Hartford, CT (43 mi)
    Quick view
  • Ebony Twilight Metallic 2021 GMC Sierra 1500 ElevationEbony Twilight Metallic 2021 GMC Sierra 1500 ElevationEbony Twilight Metallic 2021 GMC Sierra 1500 ElevationEbony Twilight Metallic 2021 GMC Sierra 1500 ElevationEbony Twilight Metallic 2021 GMC Sierra 1500 ElevationEbony Twilight Metallic 2021 GMC Sierra 1500 Elevation

    $33,599

    69,286 mi.
    Est. $609/mo

    Middletown Nissan

    3.9
    Check Availability
    Middletown, CT (34 mi)
    Quick view
  • Cayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 Elevation

    $32,900

    61,000 mi.
    Est. $597/mo

    Colandrea Buick GMC, Inc.

    4.8
    Check Availability
    Newburgh, NY (45 mi)
    Quick view
  • White Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 Denali

    $42,967

    42,554 mi.
    Est. $779/mo

    East Hills Subaru of Sayville

    4.8
    Check Availability
    Sayville, NY (41 mi)
    Quick view
  • Quicksilver Metallic 2021 GMC Sierra 1500 SLTQuicksilver Metallic 2021 GMC Sierra 1500 SLTQuicksilver Metallic 2021 GMC Sierra 1500 SLTQuicksilver Metallic 2021 GMC Sierra 1500 SLTQuicksilver Metallic 2021 GMC Sierra 1500 SLTQuicksilver Metallic 2021 GMC Sierra 1500 SLT

    $34,898

    79,620 mi.
    Est. $633/mo

    Stephen AutoMall Centre

    3.3
    Check Availability
    Farmington, CT (34 mi)
    Quick view
  • GRAY 2021 GMC Sierra 1500 SLTGRAY 2021 GMC Sierra 1500 SLTGRAY 2021 GMC Sierra 1500 SLTGRAY 2021 GMC Sierra 1500 SLTGRAY 2021 GMC Sierra 1500 SLTGRAY 2021 GMC Sierra 1500 SLT

    $29,990

    108,641 mi.
    Est. $544/mo

    Lava Motors

    Check Availability
    Canton, CT (37 mi)
    Quick view
  • Satin Steel Metallic 2021 GMC Sierra 1500 DenaliSatin Steel Metallic 2021 GMC Sierra 1500 DenaliSatin Steel Metallic 2021 GMC Sierra 1500 DenaliSatin Steel Metallic 2021 GMC Sierra 1500 DenaliSatin Steel Metallic 2021 GMC Sierra 1500 DenaliSatin Steel Metallic 2021 GMC Sierra 1500 Denali

    $41,995

    59,490 mi.
    Est. $761/mo

    Shamrock Motors

    Check Availability
    East Windsor, CT (50 mi)
    Quick view
  • Red 2021 GMC Sierra 1500 ElevationRed 2021 GMC Sierra 1500 ElevationRed 2021 GMC Sierra 1500 ElevationRed 2021 GMC Sierra 1500 ElevationRed 2021 GMC Sierra 1500 ElevationRed 2021 GMC Sierra 1500 Elevation

    $29,895

    72,487 mi.
    Est. $542/mo

    Car City LLC

    Check Availability
    East Windsor, CT (50 mi)
    Quick view
  • Summit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 Elevation

    $37,995

    63,437 mi.
    Est. $689/mo

    Superior Auto Sales

    Check Availability
    New Windsor, NY (46 mi)
    Quick view

GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $60,041 1 Good deal
2025 GMC Sierra 1500 $53,313 5 Great deals
2024 GMC Sierra 1500 $48,448 7 Great deals
2023 GMC Sierra 1500 $43,546 26 Good deals
2022 GMC Sierra 1500 $41,713 11 Good deals

About the 2021 GMC Sierra 1500

Basics

Base shown (base trim).

Seating
3
Door count
2
Drivetrain
Rear-wheel drive
Combined MPG
16
Transmission
6-Speed A/T
Engine
285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)
Side view of the 2021 GMC Sierra 1500
FAQs

How much does the 2021 GMC Sierra 1500 cost?

The 2021 GMC Sierra 1500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 1500 is $36,129, with pricing starting at $16,000.

What is the MPG of the 2021 GMC Sierra 1500?

The 2021 GMC Sierra 1500 offers up to 14 MPG in city driving and 19 MPG on the highway for a combined rating of 16 MPG.

These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle trim, driving conditions, driving habits, vehicle maintenance, and other factors.

What are some similar vehicles and competitors of the 2021 GMC Sierra 1500?

The 2021 GMC Sierra 1500 compares to and/or competes against the following vehicles:


Is the 2021 GMC Sierra 1500 reliable?

The 2021 GMC Sierra 1500 has an average reliability rating of 3.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Sierra 1500 owners.

Is the 2021 GMC Sierra 1500 a good truck?

Below are the Cars.com consumer ratings for the 2021 GMC Sierra 1500.

(56 reviews)
Rating breakdown (out of 5):
Comfort
4.2
Interior
4.2
Performance
3.8
Value
3.6
Exterior
4.3
Reliability
3.5
Ratings (56 reviews)

60% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.2
Interior
4.2
Performance
3.8
Value
3.6
Exterior
4.3
Reliability
3.5
Trims

AT4 (2 styles)

Style
4WD Crew Cab 157" AT4 4WD Crew Cab 147" AT4
Inventory price
Starting at $55,900 Starting at $54,700
Combined MPG
16 17
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)

Base (7 styles)

Style
4WD Double Cab 147" 2WD Double Cab 147" 2WD Crew Cab 147" 4WD Crew Cab 147" 4WD Crew Cab 157" 4WD Reg Cab 140" 2WD Reg Cab 140"
Inventory price
Starting at $37,300 Starting at $34,000 Starting at $36,400 Starting at $39,700 Starting at $40,000 Starting at $34,700 Starting at $30,100
Combined MPG
19 21 21 19 19 16 16
Engine
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)

Denali (3 styles)

Style
2WD Crew Cab 147" Denali 4WD Crew Cab 147" Denali 4WD Crew Cab 157" Denali
Inventory price
Starting at $55,800 Starting at $59,300 Starting at $59,600
Combined MPG
17 18 18
Engine
355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)

Elevation (7 styles)

Style
4WD Double Cab 147" Elevation w/3VL 4WD Crew Cab 147" Elevation w/3VL 4WD Crew Cab 157" Elevation 2WD Double Cab 147" Elevation 4WD Double Cab 147" Elevation w/3SB 4WD Crew Cab 147" Elevation w/3SB 2WD Crew Cab 147" Elevation
Inventory price
Starting at $44,600 Starting at $47,200 Starting at $49,300 Starting at $43,100 Starting at $46,400 Starting at $49,000 Starting at $45,700
Combined MPG
19 19 19 21 19 19 21
Engine
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)

SLE (5 styles)

Style
4WD Crew Cab 147" SLE 4WD Crew Cab 157" SLE 2WD Double Cab 147" SLE 2WD Crew Cab 147" SLE 4WD Double Cab 147" SLE
Inventory price
Starting at $47,100 Starting at $47,400 Starting at $41,400 Starting at $43,800 Starting at $44,700
Combined MPG
19 19 21 21 19
Engine
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)

SLT (3 styles)

Style
4WD Crew Cab 147" SLT 2WD Crew Cab 147" SLT 4WD Crew Cab 157" SLT
Inventory price
Starting at $50,800 Starting at $47,500 Starting at $51,100
Combined MPG
18 17 18
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)
Skip to Listings
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed

Research the 2021 GMC Sierra 1500

Compare the 2021 GMC Sierra 1500

2021 GMC Sierra 1500 by city