The average asking price for a used 2021 GMC Sierra 2500HD is $50,189, with 83,867 miles on average, across 259 cars for sale at U.S. dealers as of Nov 10, 2026.
| State | Average asking | Average miles | For sale | Days listed |
|---|---|---|---|---|
| Texas | $50,090 | 89,365 | 22 | 53 |
| North Carolina | $54,689 | 92,176 | 14 | 54 |
| California | $58,464 | 51,769 | 14 | 41 |
| Georgia | $51,190 | 92,695 | 13 | 64 |
| Florida | $52,304 | 70,231 | 10 | 80 |
| Illinois | $49,826 | 80,789 | 10 | 178 |
| Tennessee | $50,163 | 80,592 | 9 | 37 |
| Colorado | $50,265 | 80,625 | 9 | 32 |
| New York | $44,470 |
Used 2021 GMC Sierra 2500HDs for sale at U.S. dealers ask $50,189 on average (half ask less than $50,752), across 259 cars. The cars for sale have 83,867 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, Illinois has the lowest average asking price, $49,826 across 10 cars with 80,789 miles on average, and California the highest, $58,464 across 14 with 51,769 miles on average. Part of a gap between states is mileage and trim, not the state.
The 244 for sale with a listing date have been listed 72 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 2021 asks $50,189 on average with 83,867 miles; the 2020 asks $47,596 with 95,975 miles, and the 2022 asks $50,367 with 74,385 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.
| 72,004 |
| 9 |
| 99 |
| Arizona | $54,705 | 69,154 | 8 | 169 |
| Michigan | $45,018 | 119,928 | 7 | 46 |
| Minnesota | $41,013 | 132,155 | 6 | 45 |
| New Hampshire | $50,131 | 82,885 | 6 | 85 |
| Alabama | $47,246 | 111,287 | 6 | 34 |
| Utah | $42,121 | 102,556 | 6 | 71 |
| Idaho | $55,594 | 72,116 | 6 | 78 |
| Oklahoma | $47,220 | 107,862 | 5 | 40 |
| Oregon | $57,088 | 63,512 | 5 | 84 |
| South Carolina | $50,069 | 101,864 | 5 | 73 |
| Iowa | $44,729 | 88,336 | 5 | 95 |
| Louisiana | $54,551 | 60,256 | 5 | 20 |
| Washington | $48,716 | 86,084 | 5 | 42 |
| Kentucky | $53,318 | 94,756 | 5 | 57 |
| Kansas | $43,556 | 110,610 | 5 | 91 |
| Nebraska | $49,469 | 89,697 | 5 | 67 |
| Ohio | $48,017 | 80,037 | 5 | 97 |
| 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 |
