Used 2021 Mercedes-Benz GLB-Class Price in the US
A used 2021 Mercedes-Benz GLB-Class in the US typically lists for $21,791–$26,289, with a median asking price of $23,996 across 204 active US dealer listings (as of 2026-09-01). The cheapest one listed right now is $15,396, a 2021 Glb250-4m in Clinton, NC — below 95% of the market, so expect an older model year, a base trim or high mileage.
- Typical range
- $21,791 – $26,289
- Median
- $23,996
- Cheapest 5%
- under $18,502
- Cheapest listed now
- $15,396
Browse by model year
cheapest per yearCheapest 10 listed right now
ranked by price-
$15,3962021 Mercedes-Benz GLB-Class Glb250-4m114,797 mi · Clinton, NC · Best of ClintonView listing →
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$16,6992021 Mercedes-Benz GLB-Class 250117,062 mi · Columbia, SC · Columbia City CarsView listing →
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$16,8982021 Mercedes-Benz GLB-Class Glb25086,623 mi · Hollywood, FL · My Auto SourceView listing → -
$17,3952021 Mercedes-Benz GLB-Class Glb250-4m90,614 mi · South Hackensack, NJ · Carz4usView listing →
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$17,7942021 Mercedes-Benz GLB-Class Glb250-4m89,835 mi · Union City, NJ · 2 Manny's Auto SalesView listing → -
$17,9952021 Mercedes-Benz GLB-Class Glb250-4m73,744 mi · Cabot, AR · Top Choice Auto GroupView listing → -
$17,9992021 Mercedes-Benz GLB-Class Glb250-4m88,071 mi · Las Vegas, NV · Globul CarsView listing → -
$18,1502021 Mercedes-Benz GLB-Class Glb250-4m69,404 mi · Pueblo, CO · Gallery Auto Auction LLCView listing →
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$18,2952021 Mercedes-Benz GLB-Class Glb250-4m80,640 mi · Yonkers, NY · Westchester MotorsView 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 $21,791–$26,289. Cars this far under usually carry an older model year, a base trim or high mileage.
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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 $21,791 to $26,289, with a median asking price of $23,996 across 204 active US dealer listings. Nine in ten are priced between $18,502 and $30,339 (as of 2026-09-01, source: UnderMarket Cars).
Is $24,000 a good price for a used 2021 Mercedes-Benz GLB-Class?
That sits at about the market median ($23,996) for a used 2021 Mercedes-Benz GLB-Class. Under $21,791 puts you in the cheapest quarter of active US listings and under $18,502 in the cheapest 5%; above $30,339 is the priciest 5% (as of 2026-09-01).
What is the cheapest used 2021 Mercedes-Benz GLB-Class for sale right now?
$15,396 — a 2021 Mercedes-Benz GLB-Class Glb250-4m in Clinton, NC, $8,600 under the median (as of 2026-09-01).
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?
UnderMarket Cars refreshes US dealer listings continuously and re-generates this used 2021 Mercedes-Benz GLB-Class price page at least twice a day. The data date shown on this page is 2026-09-01.
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Prices updated 2026-09-01. Data covers active dealer listings across the USA.