Cheapest · Used 2020 GMC Sierra
Rank #1 / 2,763 listings
Cheapest Used 2020 GMC Sierra for Sale in the US
The cheapest used 2020 GMC Sierra in the US today costs $12,387 — a 2020 Fleet Base located in Bradenton, FL. We track 2,763 active listings; the median price is $35,990, so the top deal is $23,603 under the median.
Browse by model year
cheapest per year- All years
- 2027 · from $41,819
- 2026 · from $3,000
- 2025 · from $4,483
- 2024 · from $3,104
- 2023 · from $5,250
- 2022 · from $9,990
- 2021 · from $5,612
- 2020 · from $12,387
- 2019 · from $4,483
- 2018 · from $4,050
- 2017 · from $4,314
- 2016 · from $7,800
- 2015 · from $4,401
- 2014 · from $4,995
- 2013 · from $2,387
- 2012 · from $4,700
- 2011 · from $3,500
- 2010 · from $2,980
- 2009 · from $3,997
- 2008 · from $3,995
- 2007 · from $3,298
- 2006 · from $2,025
- 2005 · from $2,637
- 2004 · from $2,823
- 2003 · from $3,461
- 2002 · from $3,625
- 2001 · from $3,990
- 2000 · from $3,796
Top 10 cheapest listings
ranked by price-
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$14,9002020 GMC Sierra Fleet Base169,369 mi · Ortonville, MI · Marsh Auto Sales LLCView listing → -
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$16,9872020 GMC Sierra Fleet Base153,718 mi · Springfield, MA · Charles Auto Sales LLCView listing →
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Deals on the map
10 pinnedFAQ
How much does the cheapest used 2020 GMC Sierra cost?
$12,387 — a 2020 Fleet Base in Bradenton, FL (as of 2026-07-19).
What is the median price of a used 2020 GMC Sierra?
$35,990 across 2,763 US dealer active listings.
How often are prices updated?
Listings and prices refresh continuously; this page is re-generated at least twice a day.
Explore more
Prices updated 2026-07-19. Data covers active dealer listings across the USA.