Used GMC Sierra 1500 for Sale near O Fallon, IL

Summary

• With 7,964 currently listed for sale on CarGurus and an average price of $34,650.10, 35.3% of 2020 GMC Sierra 1500s for sale on CarGurus are rated as good or great deals.
• Favorably reviewed: Owners rated the 2020 GMC Sierra 1500 4.7 / 5 stars and CarGurus experts gave it an 8.3 / 10.
• 76.6% of 2020 Sierra 1500 models on CarGurus are accident free.
• The 2020 GMC Sierra 1500 stood out for its high predicted reliability ratings, ensuring peace of mind for used truck buyers.

Why it stands out

The GMC Sierra 1500 stands out for its blend of rugged capability and upscale comfort, making it a versatile choice for both work and family needs. With an impressive range of engine options and innovative features like the MultiPro Tailgate, it enhances utility while maintaining a refined interior that rivals many SUVs. Additionally, its strong towing capacity and advanced technology ensure it meets the demands of modern drivers without sacrificing style or comfort.

Other model years to consider

When considering the GMC Sierra 1500, model years 2019, 2021, and 2022 stand out as particularly appealing options. The 2019 model offers a strong balance of cost-effectiveness with an average price of $32,759.28 and a high user rating of 4.7/5, making it a smart choice for budget-conscious buyers looking for quality. Similarly, the 2021 model, priced at $36,379.82 and boasting a user rating of 4.9/5, provides excellent value along with numerous purchase opportunities due to its favorable deal percentage. Lastly, the 2022 Sierra maintains a modern appeal with an average price around $43,803.87 and continues to receive positive feedback from users (4.7/5), ensuring that buyers can find good deals while enjoying contemporary features and performance.

Model years to approach with caution

The GMC Sierra 1500 model years from the late 1990s to early 2000s generally reflect strong user satisfaction, with the 2001 model standing out due to its high rating of 4.7/5, despite a notable percentage of users considering it not a great deal. The models from this era, particularly the 1998 and 2004 years, also received favorable ratings of 4.5/5 and are seen as moderately suitable options in terms of user feedback and market positioning. More recent models like those from 2010 and 2009 indicate a downward trend in user satisfaction, with average ratings around 4.1-4.3/5 and significant portions of users finding these models less appealing in terms of value propositions.

These recommendations are based on CarGurus' proprietary market data from January 6, 2026, CarGurus experts' opinions, and generative AI.