2026 GMC Sierra prices in Montana
The median asking price for a 2026 GMC Sierra in Montana is $66,585 based on 115 active listings.
As of August 14, 2026, the median asking price for a 2026 GMC Sierra in Montana is $66,585, based on 115 active dealer listings tracked by VinAssessment.
◷ Updated August 14, 2026 ▤ 115 active dealer listings, refreshed daily ⛭ Generation: 2022–present Methodology →
Typical: $60,965–$71,462 — the middle half of 115 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 2026 GMC Sierra
The $60,965–$71,462 typical range isn't randomness — two factors explain most of it:
The Elevation-L typically asks $52,218, while the Denali Ultimate asks $82,051 — same year, same market.
Asking prices run about $63,884 under 15K miles and fall to $57,054 at 75K–90K miles — roughly $900 for every 10,000 miles.
Find your mileage and trim in the configurator below.
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Modelled from 7,980 real asking prices, adjusted for mileage and location. Not a formal appraisal.
What would a 2026 GMC Sierra cost per month?
Estimate the monthly payment on a $62,383 vehicle. Move the numbers to match your own loan.
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.
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2026 GMC Sierra: a fair price for your mileage
A 2026 GMC Sierra sheds roughly $900 for every 10,000 miles. Find your mileage below.
Fair price by mileage and trim
| Mileage | All listings | SLT | Elevation | Denali | AT4 | Elevation-L |
|---|---|---|---|---|---|---|
| Under 15K miles | $63,884 | $62,344 | $59,490 | $73,677 | $69,073 | $52,065 |
| 15K–30K miles | $50,910 | $49,363 | $50,351 | $65,752 | $63,001 | $47,314 |
| 30K–45K miles | $52,084 | $49,469 | $51,699 | $72,900 | $60,880 | $51,214 |
| 45K–60K miles | $62,080 | $62,080 | $54,940 | $80,020 | $69,675 | — |
| 60K–75K miles | $64,215 | — | — | — | — | — |
| 75K–90K miles | $57,054 | — | — | — | — | — |
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 | 26,542 listings | $63,884 | $56K–$72K |
| 15K–30K miles | 402 listings | $50,910 | $48K–$63K |
| 30K–45K miles | 79 listings | $52,084 | $49K–$69K |
| 45K–60K miles | 43 listings | $62,080 | $54K–$71K |
| 60K–75K miles | 7 listings | $64,215 | $58K–$69K |
| 75K–90K miles | 5 listings | $57,054 | $55K–$70K |
Same trim and condition assumed — mileage is the biggest lever after configuration. National data; Montana prices track it closely.
2026 GMC Sierra: price by trim
| Trim | Based on ⓘ | Median price ⓘ | Typical range ⓘ | Where it sits ⓘ |
|---|---|---|---|---|
| SLT | 7,980 listings | $62,383 | $58K–$67K | |
| Elevation | 6,392 listings | $59,407 | $55K–$64K | |
| Denali | 5,573 listings | $73,774 | $70K–$78K | |
| AT4 | 3,652 listings | $69,423 | $66K–$74K | |
| Elevation-L | 2,255 listings | $52,218 | $49K–$56K | |
| AT4X | 1,748 listings | $79,160 | $75K–$84K | |
| Denali Ultimate | 1,734 listings | $82,051 | $77K–$87K | |
| SLE | 1,260 listings | $55,757 | $51K–$60K |
National data; Montana 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 2026 GMC Sierra is $70,730 (August 2026) — up 1.4% from $69,729 in June 2026.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| August 2026 | $70,730 | $62K–$84K | 5,803 |
| July 2026 | $70,864 | $63K–$83K | 7,669 |
| June 2026 | $69,729 | $61K–$82K | 4,335 |
2026 GMC Sierra inventory across the U.S.
Keep exploring Sierra prices
2026 GMC Sierra · $66,585 typical · 115 listingsOther GMC Sierra years
Live 2026 GMC Sierra listings, priced by VIN
Every VIN links to a full market report: decode, active listings and the local price band. Shop 2025–2027 GMC Sierra listings on VehiSales →.
More 2026 GMC prices
Own a 2026 GMC Sierra? See what it's worth →
Frequently asked questions
Why do 2026 GMC Sierra prices range from $42,045 to $86,960 in Montana?
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 $60,965 and $71,462 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2026 GMC Sierra?
Expect roughly $900 less for every 10,000 miles on the odometer. A 60K-mile example should cost about $2,700 less than a 30K-mile one of the same trim — check the fair-price-by-mileage table above for your band.
Do GMC Sierra prices in Montana differ from the rest of the country?
Yes. The average in Montana is $66,043, which is $2,255 above the national average of $63,788. Local supply, demand and transport costs all play a part.
How many 2026 GMC Sierra are for sale in Montana right now?
115 in total: 102 new (averaging $66,011) and 13 pre-owned (averaging $66,295). Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 115 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.
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