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AutosXchange market data

2018 GMC Sierra 2500 prices & market data

What dealers are asking for the 2018 GMC Sierra 2500 right now, from 14 current listings at 14 dealerships across 10 states.

Asking prices of current listings · AutosXchange live dealer listings, November 6, 2026 · not sold prices

14Listings for sale now
$38,631Median asking price
$33,957–$48,853Typical range (10th–90th percentile)
105,640Median miles (14 listings with odometer)
14Dealerships listing it
See 2018 GMC Sierra 2500 listingsAll GMC Sierra 2500 yearsOther GMC models
Price vs. mileage

2018 GMC Sierra 2500: asking price vs. mileage

On the trend line, every 10,000 more miles goes with about $490 lower asking price.

2018 GMC Sierra 2500 asking price vs. mileageScatter of 11 current 2018 GMC Sierra 2500 listings (asking price against odometer miles), with a least-squares trend line of about $-490 per 10,000 miles.$35k$37.5k$40k$42.5k$45k$47.5k$50k$52.5k025k50k75k100k125k150k175kOdometer (miles)Asking price
Each dot is one current listing; the line is a straight least-squares fit over all of them. 3 extreme listings (top/bottom 1% of price or mileage) are outside the chart.
Price distribution

2018 GMC Sierra 2500: how asking prices are spread

Half of listings ask between $36,785 and $42,152; the most common band is $37,500–$40,000 (6 listings).

2018 GMC Sierra 2500 asking price distributionHistogram of 14 current 2018 GMC Sierra 2500 asking prices in 11 bins of $2,500; median $38,631.0246$25k–$27.5k: 1 listing (includes 1 below $25k)$27.5k–$30k: 0 listings$30k–$32.5k: 0 listings$32.5k–$35k: 1 listing$35k–$37.5k: 2 listings$37.5k–$40k: 6 listings$40k–$42.5k: 0 listings$42.5k–$45k: 2 listings$45k–$47.5k: 0 listings$47.5k–$50k: 0 listings$50k–$52.5k: 2 listings≤$25k$30k$35k$40k$45k$50k$52.5kMedian $38,631Asking price (bar height = number of listings)
Bars count listings in $2,500 price bands; the dashed line marks the median. The outer bars also include the lowest and highest 1% of prices.
Where they are listed

2018 GMC Sierra 2500: listings by state

Alabama has the most, with 3 listings (21% of 14).

2018 GMC Sierra 2500 listings by stateNumber of current 2018 GMC Sierra 2500 listings by dealer state: Alabama 3, California 2, Ohio 2, Arizona 1, Georgia 1, Indiana 1, Maryland 1, Pennsylvania 1, Texas 1, Virginia 1.AlabamaAlabama: 3 · 21%3 · 21%CaliforniaCalifornia: 2 · 14%2 · 14%OhioOhio: 2 · 14%2 · 14%ArizonaArizona: 1 · 7%1 · 7%GeorgiaGeorgia: 1 · 7%1 · 7%IndianaIndiana: 1 · 7%1 · 7%MarylandMaryland: 1 · 7%1 · 7%PennsylvaniaPennsylvania: 1 · 7%1 · 7%TexasTexas: 1 · 7%1 · 7%VirginiaVirginia: 1 · 7%1 · 7%
Counts current AutosXchange listings by the selling dealer's state (10 states in total).
Current listings

2018 GMC Sierra 2500 for sale now: best value first

2018 GMC Sierra 2500 HD Denali for sale in Huntsville, AL18% below similar
2018 GMC Sierra 2500 HD Denali$33,084230,515 mi · Huntsville, ALBentley Buick GMC
2018 GMC Sierra 2500 SLE Truck for sale in Hatboro, PA10% below similar
2018 GMC Sierra 2500 SLE Truck$35,99586,881 mi · Hatboro, PAUsed Car Lots In Philadelphia
2018 GMC Sierra 2500 HD SLT for sale in Cambridge, OH9% below similar
2018 GMC Sierra 2500 HD SLT$36,39868,374 mi · Cambridge, OHCambridge Truck
2018 GMC Sierra 2500 HD SLT for sale in Tuscumbia, AL5% below similar
2018 GMC Sierra 2500 HD SLT$37,944140,269 mi · Tuscumbia, ALLong-Lewis Chevrolet of the Shoals
2018 GMC Sierra 2500 HD SLE for sale in Scottsdale, AZ5% below similar
2018 GMC Sierra 2500 HD SLE$38,097102,754 mi · Scottsdale, AZVan Chevrolet
2018 GMC Sierra 2500 HD Denali for sale in Mobile, AL
2018 GMC Sierra 2500 HD Denali$38,562150,858 mi · Mobile, ALMcConnell GMC
2018 GMC Sierra 2500 HD Denali for sale in Plainfield, IN
2018 GMC Sierra 2500 HD Denali$38,700149,818 mi · Plainfield, INAndy Mohr Chevrolet
2018 Gmc SIERRA 2500 DENALI for sale in Winchester, VA
2018 Gmc SIERRA 2500 DENALI$38,99582,114 mi · Winchester, VAChampion Auto Sales of Winchester LLC
2018 GMC Sierra 2500 SLT for sale in Summerville, GA
2018 GMC Sierra 2500 SLT$39,900111,092 mi · Summerville, GAAllen's Auto Sales
2018 GMC Sierra 2500 HD SLT for sale in Ironton, OH
2018 GMC Sierra 2500 HD SLT$42,90261,380 mi · Ironton, OHIronton Automotive
2018 GMC Sierra 2500 HD Denali for sale in Glen Burnie, MD
2018 GMC Sierra 2500 HD Denali$43,794108,526 mi · Glen Burnie, MDi.g. Burton Buick GMC of Glen Burnie
2018 GMC Sierra 2500 HD SLT for sale in Bakersfield, CA
2018 GMC Sierra 2500 HD SLT$51,02161,715 mi · Bakersfield, CAThree-Way Chevrolet
2018 Gmc Sierra 2500 HD Crew Cab SLT Pickup 4D 6 1/2 ft for sale in Santa Maria, CA
2018 Gmc Sierra 2500 HD Crew Cab SLT Pickup 4D 6 1/2 ft$52,06968,208 mi · Santa Maria, CAOne Love Cars
2018 GMC SIERRA 2500 SLE for sale in Arlington, Tx, TX40% below similar
2018 GMC SIERRA 2500 SLE$23,888215,473 mi · Arlington, Tx, TXEl Padrino Auto Sales LLC
See all 14 2018 GMC Sierra 2500 listings
Sorted by how far each asking price is below the median of the same model within one model year (all current listings nationwide). Badges show listings at least 5% below that median. Listings priced under 60% of that median (often data errors or damaged vehicles) and model years with fewer than 5 comparable listings are listed after the ranked ones.
By model year

GMC Sierra 2500 market data by model year

Listings and median asking price per model year. Pages for years with fewer than 5 listings show the listings only.
Shop locally

2018 GMC Sierra 2500 for sale by city

FAQ

Frequently asked questions

What is the average asking price of a 2018 GMC Sierra 2500?
Across 14 current listings on AutosXchange, the median asking price of a 2018 GMC Sierra 2500 is $38,631. Most listings (10th to 90th percentile) ask between $33,957 and $48,853. These are dealer asking prices, not sold prices.
How many GMC Sierra 2500 are for sale?
AutosXchange currently lists 14 vehicles from 14 dealerships in 10 states.
What mileage is typical for a 2018 GMC Sierra 2500?
The median odometer reading is 105,640 miles; the middle half of listings show between 71,809 and 147,431 miles (14 listings with a published odometer).
What is a fair asking price for a 2018 GMC Sierra 2500?
Half of current listings ask between $36,785 and $42,152 (25th to 75th percentile), around a median of $38,631. Compare mileage, trim, condition and the vehicle history report before deciding; AutosXchange figures are asking prices, not sold prices.
Where are the most GMC Sierra 2500 for sale?
Alabama has the most current listings (3), followed by California (2).

AutosXchange market data is calculated from the asking prices of current dealer listings on AutosXchange, refreshed as dealers update their inventory. These are not sold or transaction prices and not appraisals. Listings with an asking price under $500 (placeholder prices) are excluded. Confirm price, fees and availability with the selling dealer.