Used GMC Sierra 1500 for Sale near Longmont, CO
464 results
- Year:
- 2023
- 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 [Whit
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 43,037
- Stock #:
- PG265369
- VIN:
- 3GTUUCEDXPG265369
Sponsored by AutoNation Dodge Ram Broadway
2023 GMC Sierra 1500
Elevation Crew Cab 4WD
43,037 mi
$41,531
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Titanium Rush Metallic
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 60,763
- Stock #:
- PZ141122
- VIN:
- 1GTUUDED6PZ141122
Sponsored Listing
2023 GMC Sierra 1500
SLT Crew Cab 4WD
60,763 mi
$44,397
- Year:
- 2017
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Red
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 101,537
- Stock #:
- 342013
- VIN:
- 3GTU2NEC3HG342013
Sponsored Listing
2017 GMC Sierra 1500
SLT Crew Cab 4WD
101,537 mi
$28,173
- Year:
- 2016
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 2 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 4.3L V6 Flex Fuel Vehicle
- Exterior color:
- Quicksilver Metallic
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Flex Fuel Vehicle
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 35,232
- Stock #:
- 8314GP
- VIN:
- 1GTN2MEH0GZ167504
2016 GMC Sierra 1500
SLE 4WD
35,232 mi
$29,594
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Titanium Rush Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 59,921
- Stock #:
- TF294415A
- VIN:
- 3GTUUEE80PG332737
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
59,921 mi
$51,720
- Year:
- 2014
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 4.3L V6 Flex Fuel Vehicle
- Exterior color:
- White
- Fuel type:
- Flex Fuel Vehicle
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 125,118
- Stock #:
- EZ374666
- VIN:
- 1GTV2UEH2EZ374666
2014 GMC Sierra 1500
SLE Double Cab 4WD
125,118 mi
$14,800
- Year:
- 2017
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Quicksilver Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 168,930
- Stock #:
- 1818D
- VIN:
- 3GTU2PEJ3HG472464
2017 GMC Sierra 1500
Denali Crew Cab 4WD
168,930 mi
$21,186
- Year:
- 2024
- 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:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 10-Speed Automatic
- Mileage:
- 11,402
- Stock #:
- KM190663
- VIN:
- 1GTUUAED8RZ190663
2024 GMC Sierra 1500
Pro Crew Cab 4WD
11,402 mi
$40,742
- Year:
- 2015
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Black
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 146,524
- Stock #:
- 454747
- VIN:
- 3GTU2VEJ0FG454747
2015 GMC Sierra 1500
SLT Crew Cab 4WD
146,524 mi
$21,673
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 2 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 4.3L V6 Flex Fuel Vehicle
- Exterior color:
- Onyx Black
- Fuel type:
- Flex Fuel Vehicle
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 77,583
- Stock #:
- L250881
- VIN:
- 3GTN9AEH1LG250881
2020 GMC Sierra 1500
Base LB 4WD
77,583 mi
$24,598
- Year:
- 2023
- 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
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 70,889
- Stock #:
- T18274
- VIN:
- 1GTUUEEL0PZ200114
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
70,889 mi
$44,998
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Silver
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 183,135
- Stock #:
- 135375T
- VIN:
- 3GTU2PEJXJG135375
2018 GMC Sierra 1500
Denali Crew Cab 4WD
183,135 mi
$21,742
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 310 hp 2.7L I4
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 44,377
- Stock #:
- TZ286696A
- VIN:
- 3GTPUCEK7PG241221
2023 GMC Sierra 1500
Elevation Crew Cab 4WD
44,377 mi
$39,384
Recommended model year:
2025 GMC Sierra 1500
Shop 2025 GMC Sierra 1500 »With 9,569 currently listed for sale and an average price of $53,301.00, 33.5% of 2025 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2025 GMC Sierra 1500 5 / 5 stars.
95.0% of 2025 Sierra models on CarGurus are accident free.
The 2025 GMC Sierra 1500 boasts impressive trailering capabilities, a range of powerful engines including a diesel option, and upscale interior finishes that elevate the driving experience.
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Quicksilver Metallic
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 49,864
- Stock #:
- DPJG512898
- VIN:
- 3GTU2PEJXJG512898
-$1,490
2018 GMC Sierra 1500
Denali Crew Cab 4WD
49,864 mi
$36,289
$34,799
- Year:
- 2017
- 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
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 85,639
- Stock #:
- 385715
- VIN:
- 1GTV2MECXHZ385715
2017 GMC Sierra 1500
SLE Double Cab 4WD
85,639 mi
$24,173
- Year:
- 2014
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Gray
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 182,667
- Stock #:
- EG554264
- VIN:
- 3GTU2WEJ3EG554264
2014 GMC Sierra 1500
Denali Crew Cab AWD
182,667 mi
$14,800
- 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:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 10-Speed Automatic
- Mileage:
- 93,756
- Stock #:
- 186406T
- VIN:
- 1GTP9EED3MZ186406
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
93,756 mi
$36,736
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Volcanic Red Tintcoat
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Atmosphere/Brownstone
- Transmission:
- Automatic
- Mileage:
- 33,370
- Stock #:
- 8387GA
- VIN:
- 3GTUUGE85PG337329
2023 GMC Sierra 1500
Denali Crew Cab 4WD
33,370 mi
$54,786
- Year:
- 2015
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Black
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 107,408
- Stock #:
- T26990
- VIN:
- 3GTU2WEJ3FG356978
-$1,000
2015 GMC Sierra 1500
Denali Crew Cab 4WD
107,408 mi
$24,999
$23,999
- Year:
- 2015
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Red
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 86,566
- Stock #:
- DS 105698
- VIN:
- 3GTU2WEC1FG105698
2015 GMC Sierra 1500
Denali Crew Cab 4WD
86,566 mi
$26,884
- Year:
- 2019
- 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:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 73,171
- Stock #:
- T1209660A
- VIN:
- 1GTU9BED6KZ397128
-$2,325
2019 GMC Sierra 1500
SLE Crew Cab 4WD
73,171 mi
$32,710
$30,385
- Year:
- 2018
- 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:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 79,185
- Stock #:
- 2PA3030
- VIN:
- 3GTU2MEC1JG314565
2018 GMC Sierra 1500
SLE Crew Cab 4WD
79,185 mi
$27,571
- Year:
- 2023
- 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 Frost
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Atmosphere/Brownstone
- Transmission:
- Automatic
- Mileage:
- 25,995
- Stock #:
- 8479GS
- VIN:
- 1GTUUGED5PZ138620
Sponsored Listing
2023 GMC Sierra 1500
Denali Crew Cab 4WD
25,995 mi
$53,764
FAQs
How much does the GMC Sierra 1500 cost in Longmont, CO?
Is the GMC Sierra 1500 a good car?
How many GMC Sierra 1500 vehicles in Longmont, CO have no reported accidents or damage?
Is the GMC Sierra 1500 safe?
What fuel types are available?
4.5 Overall rating
Customers say
The GMC Sierra 1500 has received widespread acclaim from owners across its model years for its powerful performance, spacious and comfortable interiors, and impressive towing capabilities. Reviewers often highlight the stylish design and advanced features, making it a popular choice for both work and family use. However, many have expressed concerns regarding fuel economy, high pricing in some cases, and the reliability of certain features. Overall, while it's seen as a strong competitor in its class, a few drawbacks have been noted that prospective buyers should consider.
AI generated from the text of customer reviews.
Filter by year
Filter by rating
What people say
Aristotle A
Reviewed a 2022 GMC Denali Ultimate Crew Cab 4WD on Oct 17, 2025
Love this truck! Love the inline 6 diesel! And my fiance loves the massaging seats!
Anonymous
Reviewed a 2019 GMC AT4 Crew Cab 4WD on Sep 9, 2024
The truck had all the features I wanted and the price was in-line, or better with others in my search.
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
GMC Sierra 1500 Trims
| Trim type | MSRP |
|---|---|
| SLE Crew Cab 4WD | $54,600 |
| Denali Ultimate Crew Cab 4WD | $84,400 |
| Elevation Standard Crew Cab 4WD | $53,600 |
| AT4X Crew Cab 4WD | $79,600 |
| AT4 Crew Cab 4WD | $67,000 |
| Elevation Crew Cab 4WD | $56,600 |
| Denali Crew Cab 4WD | $69,400 |
| SLT Crew Cab 4WD | $58,200 |
GMC Sierra 1500 Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of GMC Sierra 1500 prices has changed over time.
See more price trendsGMC Sierra 1500 Pricing Analysis
Pricing Analysis by Model Year
Key Insights
- Significant New-Car Premium: The 2026 GMC Sierra 1500 is priced at $62,084, representing a staggering +62.6% above MSRP, reflecting strong initial demand.
- Continued Depreciation: Prices for older model years exhibit a consistent decline, with 2018-2019 models seeing reductions of approximately -10.0% to -17.9% vs. MSRP.
- Price vs. MSRP Trends: The 2015 GMC Sierra 1500 records the lowest average price at $19,684, showing a significant decrease of -26.6%, indicative of stronger depreciation over time.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 GMC Sierra 1500 | $38,300 | $62,084 | +62.6% |
| 2025 GMC Sierra 1500 | $38,300 | $54,145 | +41.4% |
| 2024 GMC Sierra 1500 | $37,700 | $50,822 | +34.7% |
| 2023 GMC Sierra 1500 | $37,100 | $46,747 | +26.0% |
| 2022 GMC Sierra 1500 | $35,400 | $43,811 | +22.4% |
| 2021 GMC Sierra 1500 | $30,100 | $36,315 | +20.6% |
| 2020 GMC Sierra 1500 | $29,600 | $34,013 | +14.9% |
| 2019 GMC Sierra 1500 | $29,600 | $32,376 | +9.0% |
| 2018 GMC Sierra 1500 | $29,000 | $26,591 | -8.3% |
| 2017 GMC Sierra 1500 | $28,405 | $23,558 | -17.3% |
| 2016 GMC Sierra 1500 | $27,815 | $21,032 | -24.5% |
| 2015 GMC Sierra 1500 | $26,670 | $19,684 | -26.6% |
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest Prices in Atlanta: The current average price in Atlanta, GA ($42,410) indicates strong demand coupled with potentially lower inventory.
- Lowest Average Prices Found in Chicago: Chicago, IL ($36,508) reflects the best value in the market, suggesting either higher inventory or less price sensitivity.
- Inventory Correlation: Cities like Dallas (820 listings) and Houston (720 listings) maintain average prices between $40,000 and $41,000, showing a balance of inventory and pricing.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Atlanta, GA | 651 | $42,410 |
| Dallas, TX | 820 | $41,232 |
| Philadelphia, PA | 412 | $40,156 |
| New York, NY | 475 | $40,000 |
| Washington, DC | 389 | $40,387 |
| Houston, TX | 720 | $40,996 |
| Los Angeles, CA | 406 | $37,833 |
| Miami, FL | 273 | $37,785 |
| Chicago, IL | 547 | $36,508 |
| Boston, MA | 729 | $39,022 |
These recommendations are based on CarGurus' proprietary market data from June 11, 2026, CarGurus experts' opinions, and generative AI.
CarGurus recommends the 2025 GMC Sierra 1500
Summary
With 9,569 currently listed for sale and an average price of $53,301.00, 33.5% of 2025 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2025 GMC Sierra 1500 5 / 5 stars.
95.0% of 2025 Sierra models on CarGurus are accident free.
The 2025 GMC Sierra 1500 boasts impressive trailering capabilities, a range of powerful engines including a diesel option, and upscale interior finishes that elevate the driving experience.
Why it stands out
The 2025 GMC Sierra 1500 stands out in the full-size pickup market for its blend of performance and luxury. With its upscale cabin and advanced technology, it offers a premium feel that is complemented by numerous engine options ranging from a fuel-efficient turbocharged four-cylinder to a robust V8. Enhanced features like the MultiPro Tailgate add practicality, while the availability of advanced driver assistance systems such as Super Cruise offers modern conveniences that appeal to a wide range of buyers. This model continues to uphold GMC's reputation for producing reliable and capable trucks that are equally adept at handling work and leisure.
Other model years to consider
- Average price: $43,768.00
- Good/great deal percentage: 32.7%
- User rating: 5 / 5
- Total listings: 9,163
- Average price: $50,458.00
- Good/great deal percentage: 33.5%
- User rating: 4.6 / 5
- Total listings: 9,521
- Average price: $46,661.00
- Good/great deal percentage: 33.7%
- User rating: 4.33 / 5
- Total listings: 9,597
These recommendations are based on CarGurus' proprietary market data from June 8, 2026, CarGurus experts' opinions, and generative AI.
Recent expert test drives
2024 GMC Sierra 1500
- Expert review7/10
- MSRP$37,700-$82,500
- Avg. price$49,899
- User rating4.6
2020 GMC Sierra 1500
- Expert review8/10
- MSRP$29,600-$58,900
- Avg. price$33,715
- User rating4.2778
2023 GMC Sierra 1500
- Expert review8/10
- MSRP$37,100-$82,100
- Avg. price$46,134
- User rating4.3333
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