# Used 2021 Mercedes-Benz GLB prices > The average asking price for a used 2021 Mercedes-Benz GLB is $23,710, with 57,293 miles on average, across 123 cars for sale at U.S. dealers as of Nov 10, 2026. Data as of Nov 14, 2026 · [ottoquest.com](https://ottoquest.com/models/mercedes-benz-glb/2021) · [all Mercedes-Benz GLB model years](https://ottoquest.com/models/mercedes-benz-glb.md) - Average asking price: $23,710 (median $23,463) - Average miles: 57,293 - For sale now: 123 - Average days listed: 78 (of 96 with a listing date) ## 2021 Mercedes-Benz GLB prices by state States with 5 or more cars for sale. | State | Average asking | Average miles | For sale | Days listed | | --- | ---: | ---: | ---: | ---: | | California | $21,963 | 61,864 | 22 | 90 | | Florida | $26,388 | 54,386 | 11 | 35 | | Texas | $23,423 | 67,506 | 10 | 70 | | New Jersey | $23,481 | 54,039 | 8 | 171 | | Georgia | $25,482 | 41,579 | 5 | 41 | | Pennsylvania | $23,360 | 64,646 | 5 | 46 | | Colorado | $24,396 | 54,618 | 5 | 68 | ## Other Mercedes-Benz GLB years | Year | Average asking | Miles | For sale | | --- | ---: | ---: | ---: | | [2026](https://ottoquest.com/models/mercedes-benz-glb/2026.md) | $51,633 | 706 | 3,779 | | [2025](https://ottoquest.com/models/mercedes-benz-glb/2025.md) | $38,847 | 12,868 | 92 | | [2024](https://ottoquest.com/models/mercedes-benz-glb/2024.md) | $32,223 | 21,911 | 43 | | [2023](https://ottoquest.com/models/mercedes-benz-glb/2023.md) | $29,374 | 34,954 | 161 | | [2022](https://ottoquest.com/models/mercedes-benz-glb/2022.md) | $25,991 | 47,164 | 140 | | **2021** | $23,710 | 57,293 | 123 | | [2020](https://ottoquest.com/models/mercedes-benz-glb/2020.md) | $21,233 | 60,995 | 100 | ## Used 2021 Mercedes-Benz GLB prices: common questions ### What is a fair price for a used 2021 Mercedes-Benz GLB? Used 2021 Mercedes-Benz GLBs for sale at U.S. dealers ask $23,710 on average (half ask less than $23,463), across 123 cars. The cars for sale have 57,293 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. ### Where is a used 2021 Mercedes-Benz GLB cheapest? Among states with at least 10 for sale, California has the lowest average asking price, $21,963 across 22 cars with 61,864 miles on average, and Florida the highest, $26,388 across 11 with 54,386 miles on average. Part of a gap between states is mileage and trim, not the state. ### How long are used 2021 Mercedes-Benz GLBs for sale? The 96 for sale with a listing date have been listed 78 days on average. A car listed much longer than that, or one whose price has already been cut, usually leaves more room to negotiate. ### How does the 2021 Mercedes-Benz GLB compare with the 2020 and 2022? The 2021 asks $23,710 on average with 57,293 miles; the 2020 asks $21,233 with 60,995 miles, and the 2022 asks $25,991 with 47,164 miles. ## More - Check one car's price: https://ottoquest.com/deal-check.md?vin=&price=&mileage= (markdown; the page is https://ottoquest.com/deal-check) - Value a car by model, trim, year and mileage: https://ottoquest.com/value - Free alerts for new listings and price drops: https://ottoquest.com/deals Used and certified cars for sale at U.S. 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. --- OttoQuest · [this page](https://ottoquest.com/models/mercedes-benz-glb/2021). Prices are asking prices of cars for sale in the U.S. and recorded sold prices; a guide to the price, not to a car's condition.