The average asking price for a used 2020 GMC Sierra 2500HD is $47,596, with 95,975 miles on average, across 218 cars for sale at U.S. dealers as of Nov 10, 2026.
| State | Average asking | Average miles | For sale | Days listed |
|---|---|---|---|---|
| Texas | $47,404 | 119,036 | 22 | 52 |
| California | $51,219 | 82,498 | 16 | 36 |
| North Carolina | $47,539 | 119,897 | 13 | 56 |
| Florida | $51,547 | 93,881 | 12 | 112 |
| New Hampshire | $40,308 | 121,814 | 8 | 27 |
| Illinois | $55,129 | 72,122 | 8 | 120 |
| Colorado | $49,087 | 89,460 | 7 | 76 |
| Georgia | $47,688 | 100,503 | 7 | 111 |
| Idaho |
Used 2020 GMC Sierra 2500HDs for sale at U.S. dealers ask $47,596 on average (half ask less than $47,844), across 218 cars. The cars for sale have 95,975 miles on average: one with fewer miles is worth more, and one with more is worth less. To check one car's price against cars of its trim and mileage, enter its VIN in OttoQuest's free Deal Check.
Among states with at least 10 for sale, Texas has the lowest average asking price, $47,404 across 22 cars with 119,036 miles on average, and Florida the highest, $51,547 across 12 with 93,881 miles on average. Part of a gap between states is mileage and trim, not the state.
The 197 for sale with a listing date have been listed 76 days on average. A car listed much longer than that, or one whose price has already been cut, usually leaves more room to negotiate.
The 2020 asks $47,596 on average with 95,975 miles; the 2019 asks $40,962 with 115,108 miles, and the 2021 asks $50,189 with 83,867 miles.
Used and certified cars for sale at US dealers, each car counted once. Days listed are the dealer’s own days on market where they publish it. Price moves compare the same cars at both ends of the window.
| $46,797 |
| 92,430 |
| 6 |
| 92 |
| Missouri | $51,963 | 68,361 | 6 | 37 |
| Wisconsin | $51,971 | 51,144 | 5 | 335 |
| Louisiana | $41,180 | 103,947 | 5 | 27 |
| Minnesota | $45,594 | 127,786 | 5 | 150 |
| New York | $46,331 | 61,760 | 5 | 38 |
| South Dakota | $45,127 | 108,327 | 5 | 38 |
| Year | Average asking | Miles | For sale |
|---|---|---|---|
| 2026 | $79,699 | 432 | 23,482 |
| 2025 | $70,319 | 25,347 | 1,423 |
| 2024 | $65,424 | 47,513 | 1,970 |
| 2023 | $54,891 | 63,599 | 325 |
| 2022 | $50,367 | 74,385 | 408 |
| 2021 | $50,189 | 83,867 | 259 |
| 2020 | $47,596 | 95,975 | 218 |
| 2019 | $40,962 | 115,108 | 122 |
| 2018 | $35,648 | 125,557 | 139 |
| 2017 | $34,085 | 131,098 | 96 |
| 2016 | $32,367 | 143,622 | 138 |
| 2015 | $26,930 | 163,190 | 152 |
| 2014 | $23,779 | 165,285 | 39 |
| 2013 | $19,809 | 167,608 | 72 |
| 2012 | $19,066 | 148,374 | 57 |
| 2011 | $19,422 | 180,958 | 46 |
| 2010 | $14,386 | 190,922 | 9 |
| 2009 | $18,079 | 171,561 | 16 |
| 2008 | $16,401 | 183,207 | 19 |
| 2007 | $17,477 | 208,493 | 10 |
| 2006 | $22,108 | 148,787 | 12 |
| 2005 | $20,309 | 156,343 | 32 |
| 2004 | $15,568 | 188,861 | 21 |
| 2003 | $16,512 | 182,547 | 24 |
| 2002 | $13,513 | 181,155 | 9 |
| 2001 | $12,574 | 189,294 | 9 |
| 1971 | $23,945 | 47,300 | 2 |
