2020 Gmc Terrain prices in Massachusetts
The median asking price for a 2020 Gmc Terrain in Massachusetts is $18,722 based on 12 active listings.
As of July 25, 2026, the median asking price for a 2020 Gmc Terrain in Massachusetts is $18,722, based on 12 active dealer listings tracked by VinAssessment.
◷ Updated July 25, 2026 ▤ 12 active dealer listings, refreshed daily Methodology →
Typical: $15,612–$20,117 — the middle half of 12 asking prices
Why the wide range? Price depends mostly on configuration and mileage — see below. This spread covers the middle 96% of asking prices: we exclude the cheapest and priciest 2% (payment-priced ads, typos, salvage) so outliers don't distort it.
What moves the price on a 2020 Gmc Terrain
The $15,612–$20,117 typical range isn't randomness — two factors explain most of it:
The SLT typically asks $17,329, while the Denali asks $22,373 — same year, same market.
Asking prices run about $19,389 under 15K miles and fall to $14,526 over 105K miles — roughly $500 for every 10,000 miles.
Find your mileage and trim in the configurator below.
Configure the exact car
Modelled from 387 real asking prices, adjusted for mileage and location. Not a formal appraisal.
2020 Gmc Terrain: a fair price for your mileage
A 2020 Gmc Terrain sheds roughly $500 for every 10,000 miles. Find your mileage below.
Fair price by mileage and trim
| Mileage | All listings | SLT | SLE | Denali |
|---|---|---|---|---|
| Under 15K miles | $19,389 | $17,809 | $18,290 | $24,908 |
| 15K–30K miles | $22,878 | $24,342 | $21,752 | — |
| 30K–45K miles | $21,408 | $21,754 | $20,196 | $25,819 |
| 45K–60K miles | $20,494 | $20,962 | $19,511 | $24,136 |
| 60K–75K miles | $19,429 | $19,948 | $18,509 | $22,996 |
| 75K–90K miles | $18,116 | $18,058 | $17,356 | $21,426 |
| 90K–105K miles | $16,943 | $16,885 | $16,064 | $20,967 |
| Over 105K miles | $14,526 | $14,425 | $14,496 | $18,844 |
Medians of live asking prices per band and version; “—” means fewer than 3 matching listings. National data.
Fair price by mileage — all versions combined
| Mileage ⓘ | Based on ⓘ | Fair price ⓘ | Typical range ⓘ |
|---|---|---|---|
| Under 15K miles | 19 listings | $19,389 | $17K–$24K |
| 15K–30K miles | 16 listings | $22,878 | $21K–$24K |
| 30K–45K miles | 55 listings | $21,408 | $20K–$24K |
| 45K–60K miles | 130 listings | $20,494 | $19K–$23K |
| 60K–75K miles | 160 listings | $19,429 | $18K–$21K |
| 75K–90K miles | 165 listings | $18,116 | $17K–$20K |
| 90K–105K miles | 147 listings | $16,943 | $16K–$18K |
| Over 105K miles | 214 listings | $14,526 | $13K–$16K |
Same trim and condition assumed — mileage is the biggest lever after configuration. National data; Massachusetts prices track it closely.
2020 Gmc Terrain: price by trim
| Trim | Based on ⓘ | Median price ⓘ | Typical range ⓘ | Where it sits ⓘ |
|---|---|---|---|---|
| SLT | 387 listings | $17,329 | $15K–$19K | |
| SLE | 366 listings | $17,789 | $16K–$19K | |
| Denali | 157 listings | $22,373 | $20K–$24K |
National data; Massachusetts prices track it closely.
Price history
Median asking price by month — national · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2020 Gmc Terrain is $18,297 (July 2026) — down 7.9% from $19,856 in August 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| July 2026 | $18,297 | $16K–$20K | 1,135 |
| June 2026 | $18,340 | $16K–$20K | 1,255 |
| May 2026 | $18,534 | $16K–$21K | 1,267 |
| April 2026 | $18,395 | $16K–$21K | 1,088 |
| March 2026 | $17,998 | $16K–$20K | 1,322 |
| February 2026 | $17,731 | $16K–$20K | 1,236 |
| January 2026 | $17,518 | $16K–$20K | 1,168 |
| December 2025 | $17,911 | $16K–$20K | 876 |
| November 2025 | $18,489 | $16K–$21K | 678 |
| October 2025 | $18,978 | $17K–$21K | 690 |
| September 2025 | $19,950 | $18K–$22K | 636 |
| August 2025 | $19,856 | $18K–$22K | 632 |
2020 Gmc Terrain inventory across the U.S.
Keep exploring Terrain prices
2020 Gmc Terrain · $18,023 typical · 12 listingsOther Gmc Terrain years
Live 2020 Gmc Terrain listings, priced by VIN
Every VIN links to a full market report: decode, active listings and the local price band. Shop 2019–2021 Gmc Terrain listings on VehiSales →.
More 2020 Gmc prices
Frequently asked questions
Why do 2020 Gmc Terrain prices range from $12,996 to $22,835 in Massachusetts?
The spread comes down to configuration and mileage: higher-mileage, base-configuration examples sit near the low end, while low-mileage and premium configurations reach the top. Half of all listings fall between $15,612 and $20,117 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2020 Gmc Terrain?
Expect roughly $500 less for every 10,000 miles on the odometer. A 60K-mile example should cost about $1,500 less than a 30K-mile one of the same trim — check the fair-price-by-mileage table above for your band.
Do Gmc Terrain prices in Massachusetts differ from the rest of the country?
Yes. The average in Massachusetts is $18,023, which is $317 below the national average of $18,340. Local supply, demand and transport costs all play a part.
How many 2020 Gmc Terrain are for sale in Massachusetts right now?
12 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 12 active listings for this vehicle across dealer sites nationwide, updated every day. Average and median are computed from real asking prices on live listings. We exclude the top and bottom 2% of prices to remove data errors, salvage titles, and monthly-payment figures posted as if they were sale prices. Prices reflect dealer asking prices — not final sale prices — and exclude taxes, fees, and incentives. Trim and mileage move the price more than any other factor; see the breakdowns above.
Want the original factory equipment and MSRP behind a specific car? Look up the original Monroney sticker for a 2020 Gmc →
Shopping for this car?
Check individual VINs before you buy — decode the exact trim and mileage, see every active listing, and how each price compares to the local market.