The average asking price for a used 2021 GMC Sierra 3500 is $50,629, with 86,037 miles on average, across 167 cars for sale at U.S. dealers as of Nov 10, 2026.
| State | Average asking | Average miles | For sale | Days listed |
|---|---|---|---|---|
| Texas | $50,660 | 85,565 | 12 | 45 |
| Washington | $53,158 | 72,459 | 12 | 55 |
| Florida | $50,409 | 89,901 | 10 | 44 |
| Wisconsin | $46,320 | 107,360 | 8 | 29 |
| North Carolina | $54,010 | 88,427 | 8 | 22 |
| Arizona | $51,741 | 88,746 | 7 | 40 |
| Ohio | $44,691 | 108,770 | 7 | 57 |
| New Jersey | $52,465 | 63,171 | 6 | 66 |
| Minnesota | $49,090 |
Used 2021 GMC Sierra 3500s for sale at U.S. dealers ask $50,629 on average (half ask less than $50,932), across 167 cars. The cars for sale have 86,037 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, Florida has the lowest average asking price, $50,409 across 10 cars with 89,901 miles on average, and Washington the highest, $53,158 across 12 with 72,459 miles on average. Part of a gap between states is mileage and trim, not the state.
The 164 for sale with a listing date have been listed 52 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 $50,629 on average with 86,037 miles; the 2020 asks $47,772 with 93,736 miles, and the 2022 asks $51,636 with 78,215 miles.
NHTSA lists 5 safety recall campaigns that cover the 2021 GMC Sierra 3500. Repairs are free at a dealer of the make; check a car's VIN with NHTSA before you buy to see whether its recalls were fixed.
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.
| 85,201 |
| 6 |
| 144 |
| Montana | $52,973 | 65,627 | 6 | 39 |
| Idaho | $54,042 | 78,694 | 6 | 44 |
| Kentucky | $52,287 | 99,563 | 6 | 64 |
| Pennsylvania | $46,942 | 85,817 | 6 | 57 |
| Tennessee | $50,985 | 84,866 | 6 | 71 |
| Oklahoma | $46,955 | 102,373 | 5 | 62 |
| Illinois | $48,064 | 82,306 | 5 | 29 |
| Year | Average asking | Miles | For sale |
|---|---|---|---|
| 2026 | $76,175 | 10,869 | 49 |
| 2025 | $66,461 | 31,891 | 143 |
| 2024 | $60,240 | 51,558 | 268 |
| 2023 | $53,403 | 70,696 | 170 |
| 2022 | $51,636 | 78,215 | 221 |
| 2021 | $50,629 | 86,037 | 167 |
| 2020 | $47,772 | 93,736 | 145 |
| 2019 | $43,760 | 110,883 | 97 |
| 2018 | $38,373 | 126,586 | 71 |
| 2017 | $38,871 | 120,979 | 41 |
| 2016 | $37,599 | 123,448 | 55 |
| 2015 | $32,543 | 127,155 | 76 |
| 2014 | $30,483 | 124,025 | 14 |
| 2013 | $31,138 | 124,887 | 24 |
| 2012 | $27,627 | 154,230 | 15 |
| 2011 | $23,758 | 118,878 | 10 |
| 2010 | $19,195 | 121,237 | 2 |
| 2009 | $22,148 | 157,036 | 8 |
| 2008 | $22,035 | 130,826 | 6 |
| 2007 | $27,177 | 146,200 | 15 |
| 2006 | $25,304 | 135,764 | 14 |
| 2005 | $22,113 | 150,071 | 14 |
| 2004 | $18,271 | 150,923 | 13 |
| 2003 | $44,881 | 92,333 | 6 |
| 2002 | $19,467 | 181,966 | 3 |
| 2001 | $20,410 | 88,233 | 7 |
| 2000 | $7,000 | 8,000 | 1 |
| 1999 | $12,899 | 230,785 | 1 |
| 1998 | $13,264 | 138,436 | 3 |
| 1997 | $6,402 | — | 1 |
| 1996 | $17,500 | 146,515 | 2 |
| 1995 | $15,648 | 142,649 | 2 |
| 1994 | $10,500 | 63,989 | 1 |
| 1993 | $30,133 | 156,930 | 3 |
| 1989 | $21,400 | 23,625 | 1 |
| 1988 | $13,544 | 183,907 | 3 |
