2020 Gmc Sierra 1500 prices in the U.S.
The median pre-owned asking price for a 2020 Gmc Sierra 1500 in the U.S. is $33,377 based on 137 pre-owned listings (of 138 total).
As of July 25, 2026, the median asking price for a used 2020 Gmc Sierra 1500 in the U.S. is $33,377, based on 137 active dealer listings tracked by VinAssessment.
◷ Updated July 25, 2026 ▤ 138 active dealer listings, refreshed daily Methodology →
Typical: $29,995–$38,070 — the middle half of 138 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 Sierra 1500
The $29,995–$38,070 typical range isn't randomness — three factors explain most of it:
Asking prices run about $46,000 at 15K–30K miles and fall to $29,678 over 105K miles — roughly $1,800 for every 10,000 miles.
The same car typically asks $29,995 in Rhode Island but $39,998 in Hawaii.
The Sle typically asks $28,502, while the Denali asks $37,420 — same year, same market.
Find your mileage and trim in the configurator below.
Configure the exact car
Modelled from 48 real asking prices, adjusted for mileage and location. Not a formal appraisal.
2020 Gmc Sierra 1500: a fair price for your mileage
A 2020 Gmc Sierra 1500 sheds roughly $1,800 for every 10,000 miles. Find your mileage below.
Fair price by mileage and trim
| Mileage | All listings | Slt | Denali | At4 | Elevation |
|---|---|---|---|---|---|
| 15K–30K miles | $46,000 | — | $46,000 | — | — |
| 45K–60K miles | $37,064 | — | — | — | $34,495 |
| 60K–75K miles | $39,248 | $36,001 | $41,728 | — | $33,999 |
| 75K–90K miles | $36,145 | $36,557 | $36,325 | $38,045 | — |
| 90K–105K miles | $34,438 | $33,952 | $36,748 | $36,433 | — |
| Over 105K miles | $29,678 | $30,180 | $32,518 | $31,463 | $26,996 |
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 ⓘ |
|---|---|---|---|
| 15K–30K miles | 5 listings | $46,000 | $45K–$48K |
| 45K–60K miles | 6 listings | $37,064 | $35K–$42K |
| 60K–75K miles | 20 listings | $39,248 | $34K–$42K |
| 75K–90K miles | 23 listings | $36,145 | $32K–$38K |
| 90K–105K miles | 23 listings | $34,438 | $33K–$37K |
| Over 105K miles | 57 listings | $29,678 | $27K–$33K |
Same trim and condition assumed — mileage is the biggest lever after configuration.
2020 Gmc Sierra 1500: price by trim
| Trim | Based on ⓘ | Median price ⓘ | Typical range ⓘ | Where it sits ⓘ |
|---|---|---|---|---|
| Slt | 48 listings | $32,869 | $30K–$36K | |
| Denali | 39 listings | $37,420 | $33K–$40K | |
| At4 | 24 listings | $36,950 | $33K–$40K | |
| Elevation | 15 listings | $30,842 | $28K–$34K | |
| Sle | 6 listings | $28,502 | $26K–$30K |
Based on a small number of listings per trim — medians are indicative, not definitive.
Price history
Median asking price by month · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2020 Gmc Sierra 1500 is $34,198 (July 2026) — down 6.3% from $36,500 in August 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| July 2026 | $34,198 | $30K–$38K | 2,095 |
| June 2026 | $34,053 | $30K–$38K | 2,626 |
| May 2026 | $33,990 | $30K–$38K | 2,556 |
| April 2026 | $33,995 | $30K–$38K | 2,326 |
| March 2026 | $33,995 | $30K–$38K | 2,875 |
| February 2026 | $33,580 | $30K–$37K | 2,875 |
| January 2026 | $33,569 | $30K–$37K | 2,959 |
| December 2025 | $33,995 | $30K–$38K | 2,444 |
| November 2025 | $34,498 | $30K–$39K | 1,578 |
| October 2025 | $35,248 | $31K–$40K | 1,494 |
| September 2025 | $35,995 | $32K–$40K | 1,298 |
| August 2025 | $36,500 | $33K–$41K | 1,355 |
2020 Gmc Sierra 1500 prices by state
| State | Typical price | Listed this year | Active now |
|---|---|---|---|
| Texas | $32,995 | 1,607 | 13 Shop 2019–2021 nearby → |
| Florida | $32,993 | 604 | 14 Shop 2019–2021 nearby → |
| California | $34,990 | 467 | 3 Shop 2019–2021 nearby → |
| North Carolina | $34,998 | 441 | 12 Shop 2019–2021 nearby → |
| Michigan | $31,984 | 395 | 1 Shop 2019–2021 nearby → |
| Georgia | $34,058 | 381 | 18 Shop 2019–2021 nearby → |
| Illinois | $33,995 | 380 | 2 Shop 2019–2021 nearby → |
| Ohio | $31,994 | 358 | 1 Shop 2019–2021 nearby → |
| Tennessee | $34,998 | 333 | 4 Shop 2019–2021 nearby → |
| Louisiana | $32,750 | 315 | 0 |
| Missouri | $33,989 | 308 | 4 Shop 2019–2021 nearby → |
| Pennsylvania | $34,885 | 291 | 12 Shop 2019–2021 nearby → |
| Wisconsin | $33,930 | 281 | 2 Shop 2019–2021 nearby → |
| Indiana | $33,444 | 279 | 1 Shop 2019–2021 nearby → |
| Minnesota | $33,499 | 273 | 1 Shop 2019–2021 nearby → |
| Alabama | $34,088 | 266 | 2 Shop 2019–2021 nearby → |
| South Carolina | $34,000 | 252 | 2 Shop 2019–2021 nearby → |
| Arkansas | $34,613 | 243 | 2 Shop 2019–2021 nearby → |
| New York | $32,716 | 236 | 4 Shop 2019–2021 nearby → |
| Washington | $35,995 | 231 | 3 Shop 2019–2021 nearby → |
| Oklahoma | $33,857 | 229 | 1 Shop 2019–2021 nearby → |
| Colorado | $34,994 | 223 | 0 |
| Arizona | $34,999 | 219 | 1 Shop 2019–2021 nearby → |
| Massachusetts | $34,578 | 177 | 0 |
| Kentucky | $32,950 | 177 | 0 |
| Mississippi | $33,550 | 169 | 2 Shop 2019–2021 nearby → |
| Virginia | $35,546 | 169 | 7 Shop 2019–2021 nearby → |
| Iowa | $34,594 | 165 | 0 |
| Utah | $33,995 | 137 | 0 |
| Nebraska | $33,977 | 133 | 0 |
| Idaho | $35,995 | 126 | 1 Shop 2019–2021 nearby → |
| Oregon | $35,999 | 116 | 1 Shop 2019–2021 nearby → |
| Kansas | $35,499 | 109 | 0 |
| South Dakota | $36,150 | 99 | 1 Shop 2019–2021 nearby → |
| New Jersey | $32,490 | 98 | 1 Shop 2019–2021 nearby → |
| North Dakota | $34,980 | 91 | 2 Shop 2019–2021 nearby → |
| Montana | $34,992 | 86 | 5 Shop 2019–2021 nearby → |
| New Mexico | $36,162 | 76 | 1 Shop 2019–2021 nearby → |
| Maryland | $34,843 | 66 | 4 Shop 2019–2021 nearby → |
| Maine | $33,988 | 64 | 1 Shop 2019–2021 nearby → |
| Nevada | $35,989 | 59 | 0 |
| New Hampshire | $32,234 | 58 | 0 |
| West Virginia | $34,084 | 56 | 4 Shop 2019–2021 nearby → |
| Connecticut | $32,900 | 54 | 1 Shop 2019–2021 nearby → |
| Vermont | $29,998 | 35 | 1 Shop 2019–2021 nearby → |
| Wyoming | $37,094 | 35 | 0 |
| Alaska | $39,087 | 31 | 0 |
| Rhode Island | $29,995 | 24 | 0 |
| Delaware | $35,459 | 22 | 2 Shop 2019–2021 nearby → |
| Hawaii | $39,998 | 9 | 1 Shop 2019–2021 nearby → |
Listed this year counts every 2020 Gmc Sierra 1500 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.
Keep exploring Sierra 1500 prices
2020 Gmc Sierra 1500 · $34,119 typical · 138 listingsOther Gmc Sierra 1500 years
Live 2020 Gmc Sierra 1500 listings, priced by VIN
Every VIN links to a full market report: decode, active listings and the local price band. Shop 2019–2021 Gmc Sierra 1500 listings on VehiSales →.
More 2020 Gmc prices
Frequently asked questions
Why do 2020 Gmc Sierra 1500 prices range from $19,800 to $45,754?
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 $29,995 and $38,070 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2020 Gmc Sierra 1500?
Expect roughly $1,800 less for every 10,000 miles on the odometer. A 60K-mile example should cost about $5,400 less than a 30K-mile one of the same trim — check the fair-price-by-mileage table above for your band.
How many 2020 Gmc Sierra 1500 are for sale right now?
138 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 138 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.