Used 2021 Mercedes-Benz GLB-Class Price in the US
A used 2021 Mercedes-Benz GLB-Class in the US typically lists for $19,995–$25,059, with a median asking price of $22,900 across 230 active US dealer listings (as of 2026-10-19). The cheapest one listed right now is $13,895, a 2021 GLB250 in Bloomington, CA — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.
- Typical range
- $19,995 – $25,059
- Median
- $22,900
- Cheapest 5%
- under $16,927
- Cheapest listed now
- $13,895
Browse by model year
typical price per yearCheapest 10 listed right now
ranked by price-
$13,8952021 Mercedes-Benz GLB-Class GLB250117,846 mi · Bloomington, CA · Unique Auto CenterView listing →
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$14,2992021 Mercedes-Benz GLB-Class GLB250-4M131,021 mi · Franklin, TN · Mercedes-Benz of NashvilleView listing →
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$15,5452021 Mercedes-Benz GLB-Class GLB25090,466 mi · Boca Raton, FL · Jidd PerfromanceView listing →
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$15,9002021 Mercedes-Benz GLB-Class GLB250-4M128,400 mi · Ledgewood, NJ · PREMIER AUTO EXCHANGE LLCView listing →
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$15,9942021 Mercedes-Benz GLB-Class GLB250-4M89,835 mi · Union City, NJ · 2 Manny's Auto SalesView listing → -
$15,9992021 Mercedes-Benz GLB-Class GLB250109,275 mi · Mobile, AL · Harvey AutomotiveView listing →
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$15,9992021 Mercedes-Benz GLB-Class GLB250-4M117,450 mi · Galesburg, IL · Champs Auto Sale and ServicesView listing →
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$16,0002021 Mercedes-Benz GLB-Class GLB250112,486 mi · Scottsboro, AL · High Country ToyotaView listing →
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$16,3942021 Mercedes-Benz GLB-Class GLB250102,661 mi · Wilmington, NC · CarFellas Of WilmingtonView listing → -
These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2021 Mercedes-Benz GLB-Class asks $19,995–$25,059. Cars this far under: expect high mileage, a base trim or a branded title — check the vehicle history.
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10 pinnedFAQ
How much does a used 2021 Mercedes-Benz GLB-Class cost?
A used 2021 Mercedes-Benz GLB-Class in the US typically lists for $19,995 to $25,059, with a median asking price of $22,900 across 230 active US dealer listings. Nine in ten are priced between $16,927 and $29,997 (as of 2026-10-19, source: UnderMarket Cars).
Is $23,000 a good price for a used 2021 Mercedes-Benz GLB-Class?
That sits at about the market median ($22,900) for a used 2021 Mercedes-Benz GLB-Class. Under $19,995 puts you in the cheapest quarter of active US listings and under $16,927 in the cheapest 5%; above $29,997 is the priciest 5% (as of 2026-10-19).
What is the cheapest used 2021 Mercedes-Benz GLB-Class for sale right now?
$13,895 — a 2021 Mercedes-Benz GLB-Class GLB250 in Bloomington, CA, $9,005 under the median (as of 2026-10-19).
Are these MSRP or real asking prices?
Real asking prices from active US dealer listings, deduplicated by VIN — not manufacturer MSRP. They already reflect dealer discounts, and they exclude tax, title, registration and dealer fees.
How often are prices updated?
The listing data behind UnderMarket Cars is rebuilt from live US dealer inventory every few hours, and this used 2021 Mercedes-Benz GLB-Class page is regenerated from it when it is requested. The figures on this page are from 2026-10-19.
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Prices updated 2026-10-19. Data covers active dealer listings across the USA.