2021 Gmc Sierra prices in Delaware
The median asking price for a 2021 Gmc Sierra in Delaware is $43,048 based on 6 active listings.
As of July 25, 2026, the median asking price for a 2021 Gmc Sierra in Delaware is $43,048, based on 6 active dealer listings tracked by VinAssessment.
◷ Updated July 25, 2026 ▤ 6 active dealer listings, refreshed daily Methodology →
Typical: $37,737–$46,206 — the middle half of 6 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 2021 Gmc Sierra
The $37,737–$46,206 typical range isn't randomness — two factors explain most of it:
The SLE typically asks $31,999, while the Denali asks $43,686 — same year, same market.
Asking prices run about $40,859 under 15K miles and fall to $32,085 over 105K miles — roughly $800 for every 10,000 miles.
Find your mileage and trim in the configurator below.
Configure the exact car
Modelled from 989 real asking prices, adjusted for mileage and location. Not a formal appraisal.
2021 Gmc Sierra: a fair price for your mileage
A 2021 Gmc Sierra sheds roughly $800 for every 10,000 miles. Find your mileage below.
Fair price by mileage and trim
| Mileage | All listings | AT4 | Denali | SLT | Elevation | SLE |
|---|---|---|---|---|---|---|
| Under 15K miles | $40,859 | $37,577 | $51,642 | $40,859 | $35,718 | — |
| 15K–30K miles | $46,145 | $45,790 | $48,001 | $43,992 | $37,872 | $38,050 |
| 30K–45K miles | $42,987 | $45,600 | $47,553 | $40,890 | $38,228 | $35,998 |
| 45K–60K miles | $41,577 | $42,431 | $45,330 | $39,990 | $35,872 | $36,075 |
| 60K–75K miles | $39,200 | $40,368 | $42,856 | $37,495 | $34,000 | $32,944 |
| 75K–90K miles | $36,762 | $38,760 | $40,014 | $35,502 | $32,410 | $31,357 |
| 90K–105K miles | $34,995 | $37,022 | $38,488 | $34,219 | $30,045 | $29,900 |
| Over 105K miles | $32,085 | $33,708 | $36,589 | $30,536 | $28,181 | $26,990 |
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 | 58 listings | $40,859 | $37K–$50K |
| 15K–30K miles | 115 listings | $46,145 | $43K–$51K |
| 30K–45K miles | 281 listings | $42,987 | $39K–$47K |
| 45K–60K miles | 486 listings | $41,577 | $38K–$45K |
| 60K–75K miles | 649 listings | $39,200 | $35K–$42K |
| 75K–90K miles | 654 listings | $36,762 | $34K–$40K |
| 90K–105K miles | 612 listings | $34,995 | $32K–$38K |
| Over 105K miles | 805 listings | $32,085 | $29K–$36K |
Same trim and condition assumed — mileage is the biggest lever after configuration. National data; Delaware prices track it closely.
2021 Gmc Sierra: price by trim
| Trim | Based on ⓘ | Median price ⓘ | Typical range ⓘ | Where it sits ⓘ |
|---|---|---|---|---|
| AT4 | 989 listings | $38,848 | $35K–$43K | |
| Denali | 910 listings | $43,686 | $39K–$53K | |
| SLT | 822 listings | $35,995 | $33K–$40K | |
| Elevation | 595 listings | $32,587 | $30K–$35K | |
| SLE | 227 listings | $31,999 | $29K–$36K |
National data; Delaware 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 2021 Gmc Sierra is $36,995 (July 2026) — up 5.9% from $34,940 in April 2026.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| July 2026 | $36,995 | $32K–$43K | 629 |
| June 2026 | $36,500 | $32K–$43K | 447 |
| May 2026 | $36,867 | $32K–$45K | 92 |
| April 2026 | $34,940 | $29K–$44K | 98 |
2021 Gmc Sierra inventory across the U.S.
Keep exploring Sierra prices
2021 Gmc Sierra · $42,503 typical · 6 listingsOther Gmc Sierra years
Live 2021 Gmc Sierra listings, priced by VIN
Every VIN links to a full market report: decode, active listings and the local price band. Shop 2020–2022 Gmc Sierra listings on VehiSales →.
More 2021 Gmc prices
Frequently asked questions
Why do 2021 Gmc Sierra prices range from $34,254 to $51,196 in Delaware?
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 $37,737 and $46,206 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2021 Gmc Sierra?
Expect roughly $800 less for every 10,000 miles on the odometer. A 60K-mile example should cost about $2,400 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 Delaware differ from the rest of the country?
Yes. The average in Delaware is $42,503, which is $3,852 above the national average of $38,651. Local supply, demand and transport costs all play a part.
How many 2021 Gmc Sierra are for sale in Delaware right now?
6 in total. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 6 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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