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2021 GMC Terrain prices in the U.S.
$18,990
Median pre-owned asking price
372 pre-owned listings · Updated September 10, 2026
Price your exact car
National price overview
Typical asking price range
$16,870 – $20,686 All 543 listings · Middle 50% of asking pricesMedian asking price
$18,990Trim, mileage and condition change what a comparable vehicle costs.
As of September 10, 2026, the median asking price for a used 2021 GMC Terrain in the U.S. is $18,990, based on 372 active dealer listings tracked by VinAssessment.
Price range, sample and methodology details
The median pre-owned asking price for a 2021 GMC Terrain in the U.S. is $18,990 based on 372 pre-owned listings (of 543 total).
Based on 543 active dealer listings, refreshed daily.
30-day asking price change: +$142.
Typical: $16,870–$20,686 — the middle half of 543 asking prices
Median $18,990
$13K low
$25K high
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% to reduce the influence of extreme values. This does not verify title status or guarantee that every erroneous listing is excluded.
$18,990
Pre-owned median (372)
78,192
Average mileage
What moves the price
Mileage
Asking prices run about $24,106 under 15K miles and fall to $15,096 over 105K miles — roughly $900 for every 10,000 miles. These are different vehicles; trim, condition and equipment also vary.
Observed spread: up to $9,010Location
Typical asking prices are $16,992 in Montana but $20,999 in Maine. These are different listing samples, not a measured location adjustment for the same vehicle.
Observed spread: up to $4,007About these price differences
The $16,870–$20,686 typical range isn't randomness — two factors explain most of it:
Biggest factor in these observed spreads: Mileage. These groups contain different vehicles.
Find your mileage and trim in the configurator below.
Configure the exact car
Choose a state and trim once to update the connected price tables and charts for a 2021 GMC Terrain. Mileage adjusts the estimate only.
Total miles the car has already driven, as shown on its odometer.
mi
Estimated asking price · All trims
$18,990
$16,870
–
$20,686
543 listings · Nationwide
ⓘ This is a modelled estimate based on current listings and market data. Actual prices may vary.
Estimate assumptions
at typical mileage, nationwide
Modelled from 543 real asking prices, adjusted for mileage and location. An illustrative estimate from mixed listing groups, not matched vehicles. Not a formal appraisal.
Live 2021 GMC Terrain listings, priced by VIN
Compared with all listings
All-listings median $18,990
2021 GMC Terrain
SLE
$11,995
VIN 3GKALMEV4ML397619
−$6,995 · vs all-listings median
2021 GMC Terrain
SLT
$12,844
VIN 3GKALPEV4ML385987
−$6,146 · vs all-listings median
2021 GMC Terrain
SLT
$12,997
VIN 3GKALPEV0ML303916
−$5,993 · vs all-listings median
View 9 more priced VINs
- SLT VIN 3GKALPEV2ML341681 $14,375 −$4,615 vs median
- SLT VIN 3GKALVEV7ML307868 $14,290 −$4,700 vs median
- SLT VIN 3GKALPEV3ML332679 $15,995 −$2,995 vs median
- SLE VIN 3GKALTEV2ML368095 $16,165 −$2,825 vs median
- SLT VIN 3GKALPEV0ML400064 $14,895 −$4,095 vs median
- SLE VIN 3GKALMEV7ML348172 $17,239 −$1,751 vs median
- SLE VIN 3GKALTEVXML363842 $15,398 −$3,592 vs median
- SLE VIN 3GKALMEV4ML341129 $17,998 −$992 vs median
- SLE VIN 3GKALTEV5ML358371 $18,000 −$990 vs median
Price differences are not deal ratings. Compare equipment, mileage and vehicle history before judging a price.
Every VIN links to a full market report: decode, active listings and the local price band.
2021 GMC Terrain: a fair price for your mileage
Mileage means the miles recorded on the odometer. Compare asking prices in your mileage band, then select a trim — the equipment version — to narrow the comparison where data is available.
Across the national mileage bands, the overall difference is roughly $900 per 10,000 miles. These are different vehicles, not depreciation of the same car.
Region · trim United States · All trims
Active listings 543
Median asking price $18,990
Mileage means the total miles on the odometer. Each point shows the median asking price for a mileage band; shaded areas show the middle 50% of prices.
Swipe the chart horizontally to see every mileage band.
Counts cover the selected region and trim, including listings without usable mileage. Thin mileage bands and rare or unknown trims may be omitted from the chart.
View the full national mileage price table
| Mileage ⓘ | Based on ⓘ | Fair price ⓘ | Typical range ⓘ |
|---|---|---|---|
| Under 15K miles | 5 listings | $24,106 | $21K–$27K |
| 15K–30K miles | 16 listings | $22,987 | $22K–$25K |
| 30K–45K miles | 52 listings | $21,957 | $21K–$24K |
| 45K–60K miles | 90 listings | $20,520 | $20K–$22K |
| 60K–75K miles | 90 listings | $19,638 | $19K–$20K |
| 75K–90K miles | 110 listings | $18,478 | $17K–$19K |
| 90K–105K miles | 80 listings | $17,370 | $16K–$18K |
| Over 105K miles | 100 listings | $15,096 | $14K–$16K |
United States — all states. These bands combine different trims, conditions and listing histories. They do not hold trim or condition constant.
Trim-level pricing isn't reliable enough for this model yet — mileage and configuration explain most of the spread above.
Understand the differences
2021 GMC Terrain: VIN configurations and specifications
Multiple VIN patterns can share the same trim. Compare their recorded equipment, then open a specification page for the full details.
-
SLE 1.5L 4-cyl · AWD VIN pattern: 3GKALTEV · year code M$18,990 Median asking price · U.S. 131 priced listings · September 6, 2026
-
SLE 1.5L 4-cyl · FWD VIN pattern: 3GKALMEV · year code M$18,256 Median asking price · U.S. 130 priced listings · September 6, 2026
-
SLT 1.5L 4-cyl · FWD VIN pattern: 3GKALPEV · year code M$17,705 Median asking price · U.S. 125 priced listings · September 6, 2026
-
SLT 1.5L 4-cyl · AWD VIN pattern: 3GKALVEV · year code M$19,495 Median asking price · U.S. 170 priced listings · September 6, 2026
Where these specifications come from
Specifications combine decoded VIN data, including NHTSA vPIC , with inventory records. If decoding does not identify a trim, a recorded inventory trim may be shown. VIN patterns do not confirm every installed option.
Counts describe observed VINs in our database, not factory production totals. Prices are median asking prices from qualifying U.S. listings, not original MSRP. Check the vehicle’s build sheet for exact equipment.
FACTORY REFERENCE
2021 GMC Terrain factory brochure
Model-year reference for features and equipment. Actual VIN equipment may differ.
FACTORY BROCHURE
2021 GMC Terrain PDF Brochure
2021 · US · 17 pages
Explore the original manufacturer's reference for features and equipment.
Preview blank or unavailable? Your browser may not support inline PDFs. Open PDF in a new tab ↗
Need equipment for a specific vehicle? Look up its factory window sticker →
Price history
Change state or trim for this report →
View national price history · all trims
Median asking price by month — U.S., all trims · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2021 GMC Terrain is $18,995 (September 2026) — down 9.4% from $20,977 in September 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| September 2026 | $18,995 | $17K–$21K | 361 |
| August 2026 | $18,939 | $17K–$21K | 729 |
| July 2026 | $18,990 | $17K–$21K | 725 |
| June 2026 | $19,000 | $17K–$21K | 626 |
| May 2026 | $18,998 | $17K–$21K | 580 |
| April 2026 | $18,994 | $17K–$21K | 526 |
| March 2026 | $18,992 | $17K–$21K | 684 |
| February 2026 | $18,500 | $17K–$20K | 644 |
| January 2026 | $18,697 | $17K–$20K | 603 |
| December 2025 | $18,989 | $17K–$21K | 453 |
| November 2025 | $19,395 | $18K–$22K | 323 |
| October 2025 | $20,000 | $18K–$22K | 333 |
| September 2025 | $20,977 | $19K–$22K | 206 |
2021 GMC Terrain prices by state
See how asking prices vary across states. Looking for a 2021 GMC Terrain for sale near you? Open your state's price guide to compare its market, then follow the local listings link to browse available vehicles.
United States · all trims · snapshot September 10, 2026. Explore state markets below. Prices and counts cover all trims in each state; the full comparison table remains available below the map.
Explore 41 more state markets
Delaware
Typical asking price
$18,859
- Active listings
- 4
- Listed this year
- 10
Not enough active listings for a state price report.
Idaho
Typical asking price
$20,940
- Active listings
- 4
- Listed this year
- 22
Not enough active listings for a state price report.
New Hampshire
Typical asking price
$18,985
- Active listings
- 4
- Listed this year
- 20
Not enough active listings for a state price report.
Oregon
Typical asking price
$20,041
- Active listings
- 4
- Listed this year
- 29
Not enough active listings for a state price report.
Maryland
Typical asking price
$20,547
- Active listings
- 3
- Listed this year
- 38
Not enough active listings for a state price report.
Maine
Typical asking price
$20,999
- Active listings
- 2
- Listed this year
- 19
Not enough active listings for a state price report.
Mississippi
Typical asking price
$17,607
- Active listings
- 2
- Listed this year
- 36
Not enough active listings for a state price report.
Montana
Typical asking price
$16,992
- Active listings
- 2
- Listed this year
- 6
Not enough active listings for a state price report.
New Mexico
Typical asking price
$19,185
- Active listings
- 2
- Listed this year
- 14
Not enough active listings for a state price report.
North Dakota
Typical asking price
$19,929
- Active listings
- 2
- Listed this year
- 17
Not enough active listings for a state price report.
Utah
Typical asking price
$17,892
- Active listings
- 2
- Listed this year
- 20
Not enough active listings for a state price report.
View the U.S. inventory map
What does this map show?
The numbers are active listings, not prices. Badges mark the 8 busiest mapped states to keep the map readable; other states can also have listings.
Hover over a state or focus it with your keyboard for details. Click a linked state or its number to open that state's price page.
State details will appear here. On a phone, tap a linked state to open its prices; use the full table for easier browsing.
Scroll the map sideways on smaller screens. Numbers stay large enough to read.
Most active listings
Other states with active listings
No active listings or insufficient data
Alaska and Hawaii are not drawn on this map. Where qualifying data is available, they appear in the full state table. Grey does not necessarily mean no cars are for sale.
View all states and prices
Listed this year counts every 2021 GMC Terrain first listed in 2026 (sold and active), with currently active cars as a floor. Typical price is the median of each car's latest asking price — or the average of active listings where this-year data is thin.
EXPLORE THE YEARS
Other GMC Terrain years
Same model, a different chapter. Start with a nearby year, or open the complete timeline.
An earlier model year
2020
GMC Terrain
Typical asking price
$17,975
Explore this year →
You are here
2021
GMC Terrain
Typical asking price
$18,990
Your current report
A newer model year
2022
GMC Terrain
Typical asking price
$21,995
Explore this year →
See how model-year prices compare
U.S. market · All trimsDifferent model years, shown on the same dollar scale. Median asking price where available; otherwise average. These are different vehicles, not a forecast of your car’s value.
- 2027 $38,560 Median
- 2026 $35,999 Median
- 2025 $28,266 Median
- 2024 $24,588 Median
- 2023 $24,613 Median
- 2022 $21,995 Median
-
You are here 2021 $18,990 Median
- 2020 $17,975 Median
- 2019 $15,581 Median
- 2018 $14,170 Median
- 2017 $11,290 Median
- 2016 $10,400 Median
- 2015 $8,997 Median
- 2014 $8,197 Median
- 2013 $7,900 Median
- 2012 $7,146 Median
Showing the newest 16 priced model years plus your current year when older. Open the complete timeline below for older years.
Explore all 17 other model years
Pick a year to open its price report. Prices compare different vehicles and equipment, not the changing value of one car.
Nearby model years
2017
$11,290
2018
$14,170
2019
$15,581
2020
$17,975
2022
$21,995
2023
$24,613
2024
$24,588
2025
$28,266
More model years
MEET THE REST OF THE LINEUP
More 2021 GMC prices
Something else catch your eye? Explore other 2021 GMC models before you decide.
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GMC Savana
Explore this model →Prices shown for other models are average asking prices in the national snapshot. Photos are representative; trim and equipment vary.
What would a 2021 GMC Terrain cost per month?
Estimate the monthly payment on a $18,990 vehicle. Move the numbers to match your own loan.
10% down
7.0% is an illustrative starting rate — use your own lender quote.
Loan term
Estimated monthly payment
$338
per month
60 months · 7.0% APR · $1,899 down
Amount financed
$17,091
Total interest
$3,189
Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.
Before you buy
A few important steps can help you buy with confidence.
- Check title and accident history
- Arrange an independent inspection
- Review factory equipment
- Check recalls by VIN
Frequently asked questions
Why do 2021 GMC Terrain prices range from $12,527 to $25,037?
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 $16,870 and $20,686 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2021 GMC Terrain?
Across the lowest- and highest-mileage groups, asking prices differ by roughly $900 per 10,000 miles. These groups contain different vehicles: this is not a same-trim adjustment or a forecast for one car. Compare the mileage and trim tables, then check condition, equipment and vehicle history.
How many 2021 GMC Terrain are for sale right now?
543 in total. Counts refresh daily from live dealer inventory.
Is this the trade-in value or private-party value of my 2021 GMC Terrain?
These figures describe dealer asking prices, not trade-in offers, private-party sale values or completed sale prices. Use them to compare advertised vehicles. To find out what a buyer or dealer would pay for your car, request an offer that takes its mileage, condition, equipment and history into account.
How we calculate these prices
We track 543 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 reduce the influence of extreme values. This does not verify title status or guarantee that every erroneous listing is excluded. 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? See the factory window sticker for this Terrain →
Own a 2021 GMC Terrain? See what it's worth →
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