Used 2018 GMC Sierra 1500 for Sale near Conroe, TX
390 results
CarGurus Analysis:
2018 GMC Sierra 1500
With 3,925 currently listed for sale and an average price of $26,910.00, 32.2% of 2018 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 GMC Sierra 1500 4.44 / 5 stars.
68.0% of 2018 Sierra models on CarGurus are accident free.
The 2018 GMC Sierra 1500 gained significant value with more standard content and safety features, an improved infotainment system, and luxury options that cater to both work and family needs.
CarGurus Analysis: 2018 GMC Sierra 1500
overall

Summary
With 3,925 currently listed for sale and an average price of $26,910.00, 32.2% of 2018 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 GMC Sierra 1500 4.44 / 5 stars.
68.0% of 2018 Sierra models on CarGurus are accident free.
The 2018 GMC Sierra 1500 gained significant value with more standard content and safety features, an improved infotainment system, and luxury options that cater to both work and family needs.
Why it stands out
The 2018 GMC Sierra 1500 distinguishes itself by integrating luxury into the traditional pickup experience, reflecting a trend where trucks are no longer just utilitarian but also comfortable and stylish family vehicles. The introduction of more standard features, such as the GMC IntelliLink infotainment system across all trims, enhances user experience significantly. This pickup is equipped with a spacious cabin that feels more like a luxury vehicle than a work truck, offering features like leather seating and advanced safety options. Notably, the Sierra 1500 can tow up to 12,500 pounds, providing exceptional capability for both work and pleasure. While some users mentioned missing features like backseat vents and safety options, the overall perception is positive, with much appreciation for its smooth ride and powerful performance.
Other model years to consider
- Average price: $43,827.00
- Good/great deal percentage: 34.1%
- User rating: 5 / 5
- Total listings: 9,061
- Average price: $53,033.00
- Good/great deal percentage: 34.2%
- User rating: 5 / 5
- Total listings: 9,413
- Average price: $50,801.00
- Good/great deal percentage: 33.8%
- User rating: 4.6 / 5
- Total listings: 9,620
This analysis is based on CarGurus' proprietary market data from May 18, 2026, CarGurus experts' opinions, and generative AI.
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4.5 Overall rating
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Ryan A
Reviewed a 2018 GMC Sierra 1500 on Aug 5, 2025
Only thing i didn’t like is the gas mileage. Mine is slightly lifted though and averages about 13 miles to the gallon
Edward E
Reviewed a 2018 GMC Sierra 1500 on Feb 28, 2020
2018 GMC Sierra. Simply the best driving & riding truck I have ever owned. The magnetic ride sets it apart and was the reason I purchased a 2018 vs the newer body style without it. It’s also the reason I choose it over similar Ford and Dodge trucks.
Anonymous
Reviewed a 2018 GMC Sierra 1500 on Mar 3, 2021
very luxurious and drives incredible smooth.. Wouldnt know its a pickup truck
Jason J
Reviewed a 2018 GMC Sierra 1500 on Aug 20, 2022
Great truck, but not liking this heavy shudder from the torque converter.
2018 GMC Sierra 1500 Trims
| Trim type | MSRP |
|---|---|
| SLT Double Cab 4WD | $46,000 |
| Base | $29,000 |
| SLE Crew Cab 4WD | $44,700 |
| Base Double Cab 4WD | $37,000 |
| SLE Double Cab 4WD | $42,100 |
| SLT Crew Cab | $45,200 |
| Denali Crew Cab 4WD | $56,000 |
| SLT Crew Cab 4WD | $48,400 |
2018 GMC Sierra 1500 Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2018 GMC Sierra 1500 prices has changed over time.
See more price trends2018 GMC Sierra 1500 Pricing Analysis
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Lowest Prices in Miami: The lowest average price is observed in Miami, FL ($21,556), indicating a market with either higher inventory or more competitive pricing strategies.
- Highest in Philadelphia: Conversely, Philadelphia, PA ($27,858) commands the highest prices, possibly due to urban demand and economic factors.
- Moderate Price Range Among Major Cities: Major cities like Chicago and Dallas have average prices that hover around the mid $25K range, suggesting steady demand.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Philadelphia, PA | 357 | $27,858 |
| Dallas, TX | 391 | $26,059 |
| Chicago, IL | 409 | $25,685 |
| Los Angeles, CA | 235 | $25,890 |
| New York, NY | 359 | $25,308 |
| Atlanta, GA | 444 | $26,422 |
| Washington, DC | 362 | $24,278 |
| Houston, TX | 400 | $23,244 |
| Boston, MA | 367 | $25,175 |
| Miami, FL | 246 | $21,556 |
Pricing Analysis by Model Year
Key Insights
- High Premium for Newer Models: The 2026 GMC Sierra 1500 shows a strong market demand, with an average price of $61,510, which is a significant mark-up compared to its original MSRP of $38,300 (+60.9%).
- Depreciation for Older Models: The depreciation becomes evident, where the 2017 model depreciates to an average price of $23,397, reflecting a decline of -17.4% from its MSRP, highlighting a trend for vehicles older than five years.
- Best Value in Recent Models: The 2021 model remains under $37K, showing a modest depreciation of -21.3%, making it a valuable option for buyers seeking balance between cost and modern features.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 GMC Sierra 1500 | $38,300 | $61,510 | +60.9% |
| 2025 GMC Sierra 1500 | $38,300 | $54,159 | +41.5% |
| 2024 GMC Sierra 1500 | $37,700 | $51,005 | +35.3% |
| 2023 GMC Sierra 1500 | $37,100 | $46,871 | +26.4% |
| 2022 GMC Sierra 1500 | $35,400 | $43,904 | +23.9% |
| 2021 GMC Sierra 1500 | $30,100 | $36,418 | +21.0% |
| 2020 GMC Sierra 1500 | $29,600 | $34,087 | +15.1% |
| 2019 GMC Sierra 1500 | $29,600 | $32,369 | +9.0% |
| 2017 GMC Sierra 1500 | $28,405 | $23,397 | -17.4% |
| 2016 GMC Sierra 1500 | $27,815 | $21,328 | -23.3% |
| 2015 GMC Sierra 1500 | $26,670 | $19,620 | -26.4% |
| 2014 GMC Sierra 1500 | $26,075 | $17,300 | -33.4% |
These recommendations are based on CarGurus' proprietary market data from May 21, 2026, CarGurus experts' opinions, and generative AI.








