# Used 2020 Mercedes-Benz GLS prices

> The average asking price for a used 2020 Mercedes-Benz GLS is $33,280, with 81,627 miles on average, across 116 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-gls/2020) · [all Mercedes-Benz GLS model years](https://ottoquest.com/models/mercedes-benz-gls.md)

- Average asking price: $33,280 (median $31,568)
- Average miles: 81,627
- For sale now: 116
- Average days listed: 83 (of 106 with a listing date)

## 2020 Mercedes-Benz GLS prices by state

States with 5 or more cars for sale.

| State | Average asking | Average miles | For sale | Days listed |
| --- | ---: | ---: | ---: | ---: |
| California | $32,200 | 84,006 | 15 | 84 |
| Florida | $40,575 | 58,973 | 14 | 71 |
| Texas | $33,662 | 84,029 | 11 | 83 |
| Virginia | $30,346 | 90,626 | 8 | 66 |
| New Jersey | $34,786 | 71,245 | 5 | 61 |
| Pennsylvania | $33,196 | 90,778 | 5 | 116 |

## Other Mercedes-Benz GLS years

| Year | Average asking | Miles | For sale |
| --- | ---: | ---: | ---: |
| [2027](https://ottoquest.com/models/mercedes-benz-gls/2027.md) | $104,590 | 14 | 2,701 |
| [2026](https://ottoquest.com/models/mercedes-benz-gls/2026.md) | $110,142 | 743 | 1,600 |
| [2025](https://ottoquest.com/models/mercedes-benz-gls/2025.md) | $89,442 | 15,777 | 153 |
| [2024](https://ottoquest.com/models/mercedes-benz-gls/2024.md) | $71,342 | 30,682 | 185 |
| [2023](https://ottoquest.com/models/mercedes-benz-gls/2023.md) | $65,077 | 38,949 | 111 |
| [2022](https://ottoquest.com/models/mercedes-benz-gls/2022.md) | $49,203 | 53,194 | 88 |
| [2021](https://ottoquest.com/models/mercedes-benz-gls/2021.md) | $42,635 | 67,051 | 93 |
| **2020** | $33,280 | 81,627 | 116 |
| [2019](https://ottoquest.com/models/mercedes-benz-gls/2019.md) | $23,573 | 84,457 | 112 |
| [2018](https://ottoquest.com/models/mercedes-benz-gls/2018.md) | $20,808 | 100,982 | 97 |
| [2017](https://ottoquest.com/models/mercedes-benz-gls/2017.md) | $17,748 | 109,139 | 192 |

## Used 2020 Mercedes-Benz GLS prices: common questions

### What is a fair price for a used 2020 Mercedes-Benz GLS?

Used 2020 Mercedes-Benz GLSs for sale at U.S. dealers ask $33,280 on average (half ask less than $31,568), across 116 cars. The cars for sale have 81,627 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 2020 Mercedes-Benz GLS cheapest?

Among states with at least 10 for sale, California has the lowest average asking price, $32,200 across 15 cars with 84,006 miles on average, and Florida the highest, $40,575 across 14 with 58,973 miles on average. Part of a gap between states is mileage and trim, not the state.

### How long are used 2020 Mercedes-Benz GLSs for sale?

The 106 for sale with a listing date have been listed 83 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 2020 Mercedes-Benz GLS compare with the 2019 and 2021?

The 2020 asks $33,280 on average with 81,627 miles; the 2019 asks $23,573 with 84,457 miles, and the 2021 asks $42,635 with 67,051 miles.

## More

- Check one car's price: https://ottoquest.com/deal-check.md?vin=<VIN>&price=<price>&mileage=<miles> (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-gls/2020). 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.