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2020 GMC Sierra 1500 for sale

AutoDealersHub has 8 listings for used 2020 GMC Sierra 1500s from local dealers, all 2020 models. Asking prices run from $19,490 to $39,995 with a median of $25,848, across 8 listings that show a price. Half of asking prices fall between $23,858 and $32,995 (the middle half of 8 priced listings) as of Nov 7, 2026.

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Updated Nov 7, 2026, 11:18 AM ET

AutoDealersHub lists a small selection of used 2020 GMC Sierra 1500 vehicles from several local dealers, mostly in Texas and Virginia. The listings are pickup trucks, in diesel and gasoline versions.

AI summary generated from current AutoDealersHub listings. Counts and prices change as dealers update inventory.

In stock
8
from local dealers
Price range
$19,490–$39,995
median $25,848
Model years
2020
Top trims
SLT, Elevation Crew Cab 4WD, AT4 Crew Cab 4WD

Compare prices by trim (4)

8 cars

Prices are the dealers' advertised prices. Taxes, title, registration and any dealer fees may be extra.

Highlights

  • Popular trims include AT4 Crew Cab 4WD, Elevation Crew Cab 4WD and SLT
  • Listings include diesel and gasoline versions
  • 4WD is the most common drivetrain

AI summary generated from current AutoDealersHub listings. Counts and prices change as dealers update inventory.

Prices

Asking prices of the used 2020 GMC Sierra 1500s listed on AutoDealersHub, as of Nov 7, 2026.

Typical asking price
$23,858 – $32,995the middle half of the priced listings
Median asking price
$25,848
Lowest asking price
$19,490
Listings with a price
8
As of
Nov 7, 2026

Dealers' advertised asking prices; flagged placeholder and implausible prices are left out. How these figures are made

Other GMC Sierra 1500 model years

Frequently asked questions

How many used 2020 GMC Sierra 1500s are for sale on AutoDealersHub?

There are 8 listings for used 2020 GMC Sierra 1500s right now, from local dealers. Listings refresh from each dealer's inventory feed about every hour.

How much do used 2020 GMC Sierra 1500s cost?

Asking prices run from $19,490 to $39,995 with a median of $25,848, across 8 listings that show a price. These are the asking prices of the used 2020 GMC Sierra 1500s listed on AutoDealersHub right now.

Which GMC Sierra 1500 trims are listed?

The most-listed trims right now are SLT (3), Elevation Crew Cab 4WD (2) and AT4 Crew Cab 4WD (1).

Where do these listings come from?

Every listing comes from a DealersCloud dealer's own website inventory and is refreshed about every hour. AutoDealersHub does not sell cars: choosing View at dealer takes you to the dealer's listing, where you confirm availability and buy directly from the dealer.

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