Used 2015 GMC Sierra 2500HD for Sale near Denver, CO
62 results
CarGurus Analysis:
2015 GMC Sierra 2500HD
With 557 currently listed for sale and an average price of $29,785.00, 30.2% of 2015 GMC Sierra 2500HDs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2015 GMC Sierra 2500HD 5 / 5 stars.
67.9% of 2015 Sierra 2500HD models on CarGurus are accident-free.
CarGurus Analysis: 2015 GMC Sierra 2500HD

Summary
With 557 currently listed for sale and an average price of $29,785.00, 30.2% of 2015 GMC Sierra 2500HDs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2015 GMC Sierra 2500HD 5 / 5 stars.
67.9% of 2015 Sierra 2500HD models on CarGurus are accident-free.
Why it stands out
The 2015 GMC Sierra 2500HD distinguishes itself as a robust player in the heavy-duty truck category, praised for its powerful performance and luxurious features. Owners frequently highlight the impressive capabilities of the available Duramax diesel engine, which delivers outstanding towing power while maintaining a comfortable ride. The interior of the Sierra 2500HD is designed with an emphasis on premium materials and advanced technology, making it more upscale than many competitors. While the truck excels in performance and comfort, some potential buyers may find it to be more expensive compared to other similar models. Overall, the 2015 Sierra 2500HD blends utility with luxury, appealing to those seeking both a capable workhorse and a comfortable daily driver.
Other model years to consider
- Average price: $76,805.00
- Good/great deal percentage: 37.6%
- User rating: 5 / 5
- Total listings: 3,756
- Average price: $69,972.00
- Good/great deal percentage: 38.1%
- User rating: 4 / 5
- Total listings: 4,090
- Average price: $56,723.00
- Good/great deal percentage: 37.1%
- User rating: 4 / 5
- Total listings: 3,621
This analysis is based on CarGurus' proprietary market data from May 25, 2026, CarGurus experts' opinions, and generative AI.
Relevant articles

2026 GMC Sierra 2500HD Pricing, Specs, and Release Date
Aside from a freshened color palette and broader availability of the trick MultiPro Tailgate, the 2026 GMC Sierra 2500HD full-size pickup truck soldiers on as a premium workhorse capable of towing up to 20,000 pounds in luxurious style.

2025 GMC Sierra 2500HD Pricing, Specs, and Release Date
Slotted between the light-duty 1500 and the ultra-tough 3500HD, the 2025 GMC Sierra 2500HD balances immense capability with the comfort and latest amenities expected from today's truck buyers. Upgrades for 2025 include a newly standard trailer brake controller.

Who Makes GMC Cars?
GMC is an American automaker that builds premium trucks and SUVs with capability and comfort as selling points. GMC is a division of General Motors and all of its vehicles share platforms with other GM products. Certain products, like its trucks, are very closely related to Chevrolet products.
5.0 Overall rating
Filter by rating
Austin H
Reviewed a 2015 GMC Sierra 2500HD on Jan 7, 2024
I test drove all of the major diesel 3/4 ton trucks and this one rode the best and had the most creature comforts. That coupled with a reliable duramax and allison transmission sealed the deal. It also proportionally looks right. Some trucks just look off (too low, too high, tires too small, etc).
Darrell K
Reviewed a 2015 GMC Sierra 2500HD on May 30, 2024
Good towing package/prep and good condition aesthetically. Little to no rust apparent.
Clinton L
Reviewed a 2015 GMC Sierra 2500HD on Mar 2, 2024
Solid truck with plenty of power and all the bells and whistles. Rides smoothly, the Cadillac of trucks for sure.
Rocky A
Reviewed a 2015 GMC Sierra 2500HD on Oct 19, 2020
I think it’s a great value with the Duramax engine.....the GMC has all the bells ,and whistles especially with the Denali leather seats all power options,and then some .......
2015 GMC Sierra 2500HD Trims
| Trim type | MSRP |
|---|---|
| Base LB 4WD | $36,150 |
| Base Double Cab SB 4WD | $38,330 |
| Base Crew Cab SB 4WD | $39,935 |
| SLT Double Cab SB 4WD | $48,750 |
| SLE Double Cab SB 4WD | $44,290 |
| SLE Crew Cab SB 4WD | $46,095 |
| SLT Crew Cab SB 4WD | $50,870 |
| Denali Crew Cab SB 4WD | $56,200 |
2015 GMC Sierra 2500HD Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2015 GMC Sierra 2500HD prices has changed over time.
See more price trends2015 GMC Sierra 2500HD Pricing Analysis: Denver, CO Market Report
Pricing by Nearby Locations
Market Area: Denver, CO
Key Insights
- Lowest Prices in Laramie, WY: The market in Laramie ($21,999) showcases the most competitive pricing, likely due to lower demand and inventory levels, suggesting a buyer’s market.
- High Prices in Colorado Springs: Listings in Colorado Springs ($39,995) indicate a premium price point, potentially driven by higher demand for used heavy-duty trucks in urban areas.
- Stable Pricing Across Listings: Despite variations, cities like Castle Rock (58 listings) and Longmont (60 listings) show fairly stable prices near $29K–$32K, indicating balanced supply and demand.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Colorado Springs, CO | 56 | $39,995 |
| Pueblo, CO | 56 | $39,995 |
| Castle Rock, CO | 58 | $32,962 |
| Longmont, CO | 60 | $29,923 |
| Fort Collins, CO | 59 | $26,438 |
| Cheyenne, WY | 58 | $26,438 |
| Grand Junction, CO | 51 | $39,495 |
| Laramie, WY | 54 | $21,999 |
Pricing Analysis by Model Year
Key Insights
- Expensive New Models: The 2026 GMC Sierra 2500HD is priced at $89,386, significantly above the $47,000 MSRP, indicating a high demand for the newest models and potential supply constraints.
- Increasing Depreciation with Age: Older models, such as the 2014 Sierra 2500HD, show a sharp decline in value with an average price of $27,249, roughly -12.5% compared to the starting MSRP.
- Recent Models Holding Value Better: The 2021 model still retains value with a drop of only -10% from its MSRP, showing less depreciation than earlier years.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 GMC Sierra 2500HD | $47,000 | $89,386 | +90.0% |
| 2025 GMC Sierra 2500HD | $46,300 | $80,062 | +72.9% |
| 2024 GMC Sierra 2500HD | $45,400 | $67,767 | +49.2% |
| 2023 GMC Sierra 2500HD | $42,200 | $58,669 | +38.8% |
| 2022 GMC Sierra 2500HD | $36,200 | $52,002 | +43.5% |
| 2021 GMC Sierra 2500HD | $36,200 | $42,725 | +18.0% |
| 2020 GMC Sierra 2500HD | $35,800 | $51,612 | +44.0% |
| 2019 GMC Sierra 2500HD | $38,200 | $35,647 | -6.4% |
| 2018 GMC Sierra 2500HD | $35,000 | $37,624 | +7.5% |
| 2017 GMC Sierra 2500HD | $34,190 | $39,512 | +15.6% |
| 2016 GMC Sierra 2500HD | $33,535 | $33,994 | +1.4% |
| 2014 GMC Sierra 2500HD | $31,310 | $27,249 | -12.5% |
These recommendations are based on CarGurus' proprietary market data from May 28, 2026, CarGurus experts' opinions, and generative AI.







