Used 2018 GMC Acadia Price in the US
A used 2018 GMC Acadia in the US typically lists for $12,895–$18,099, with a median asking price of $15,393 across 709 active US dealer listings (as of 2026-09-03). The cheapest one listed right now is $4,500, a 2018 Denali in La Marque, TX — below 95% of the market, so expect an older model year, a base trim or high mileage.
- Typical range
- $12,895 – $18,099
- Median
- $15,393
- Cheapest 5%
- under $8,999
- Cheapest listed now
- $4,500
Browse by model year
cheapest per year- All years
- 2027 · from $49,433
- 2026 · from $30,700
- 2025 · from $27,988
- 2024 · from $28,885
- 2023 · from $14,995
- 2022 · from $14,294
- 2021 · from $9,398
- 2020 · from $6,999
- 2019 · from $4,090
- 2018 · from $6,399
- 2017 · from $2,500
- 2016 · from $2,215
- 2015 · from $2,800
- 2014 · from $2,699
- 2013 · from $1,500
- 2012 · from $1,999
- 2011 · from $2,600
- 2010 · from $1,599
- 2009 · from $1,665
- 2008 · from $2,026
- 2007 · from $2,595
Cheapest 10 listed right now
ranked by price-
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$7,1742018 GMC Acadia Slt-1212,406 mi · Kentland, IN · Model 1 Chevrolet of KentlandView listing → -
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$7,9952018 GMC Acadia Slt-1141,316 mi · Naugatuck, CT · Preowned Auto Wholesalers LLCView listing →
These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2018 GMC Acadia asks $12,895–$18,099. Cars this far under usually carry an older model year, a base trim or high mileage.
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10 pinnedFAQ
How much does a used 2018 GMC Acadia cost?
A used 2018 GMC Acadia in the US typically lists for $12,895 to $18,099, with a median asking price of $15,393 across 709 active US dealer listings. Nine in ten are priced between $8,999 and $22,890 (as of 2026-09-03, source: UnderMarket Cars).
Is $15,000 a good price for a used 2018 GMC Acadia?
That sits at about the market median ($15,393) for a used 2018 GMC Acadia. Under $12,895 puts you in the cheapest quarter of active US listings and under $8,999 in the cheapest 5%; above $22,890 is the priciest 5% (as of 2026-09-03).
What is the cheapest used 2018 GMC Acadia for sale right now?
$4,500 — a 2018 GMC Acadia Denali in La Marque, TX, $10,893 under the median (as of 2026-09-03).
Are these MSRP or real asking prices?
Real asking prices from active US dealer listings, deduplicated by VIN — not manufacturer MSRP. They already reflect dealer discounts, and they exclude tax, title, registration and dealer fees.
How often are prices updated?
UnderMarket Cars refreshes US dealer listings continuously and re-generates this used 2018 GMC Acadia price page at least twice a day. The data date shown on this page is 2026-09-03.
Explore more
Prices updated 2026-09-03. Data covers active dealer listings across the USA.