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AutosXchange market data

2018 GMC Sierra 1500 prices & market data

What dealers are asking for the 2018 GMC Sierra 1500 right now, from 130 current listings at 115 dealerships across 33 states.

Asking prices of current listings · AutosXchange live dealer listings, November 5, 2026 · not sold prices

130Listings for sale now
$24,995Median asking price
$15,425–$32,988Typical range (10th–90th percentile)
111,927Median miles (130 listings with odometer)
115Dealerships listing it
See 2018 GMC Sierra 1500 listingsAll GMC Sierra 1500 yearsOther GMC models
Price vs. mileage

2018 GMC Sierra 1500: asking price vs. mileage

On the trend line, every 10,000 more miles goes with about $1,200 lower asking price.

2018 GMC Sierra 1500 asking price vs. mileageScatter of 124 current 2018 GMC Sierra 1500 listings (asking price against odometer miles), with a least-squares trend line of about $-1,200 per 10,000 miles.$5k$10k$15k$20k$25k$30k$35k$40k025k50k75k100k125k150k175k200k225kOdometer (miles)Asking price
Each dot is one current listing; the line is a straight least-squares fit over all of them. 6 extreme listings (top/bottom 1% of price or mileage) are outside the chart.
Price distribution

2018 GMC Sierra 1500: how asking prices are spread

Half of listings ask between $20,121 and $29,066; the most common band is $27,500–$30,000 (23 listings).

2018 GMC Sierra 1500 asking price distributionHistogram of 130 current 2018 GMC Sierra 1500 asking prices in 14 bins of $2,500; median $24,995.0510152025$5k–$7.5k: 2 listings (includes 2 below $5k)$7.5k–$10k: 2 listings$10k–$12.5k: 1 listing$12.5k–$15k: 7 listings$15k–$17.5k: 6 listings$17.5k–$20k: 15 listings$20k–$22.5k: 13 listings$22.5k–$25k: 21 listings$25k–$27.5k: 15 listings$27.5k–$30k: 23 listings$30k–$32.5k: 8 listings$32.5k–$35k: 14 listings$35k–$37.5k: 0 listings$37.5k–$40k: 3 listings≤$5k$12.5k$20k$27.5k$35k$40kMedian $24,995Asking 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 1500: listings by state (top 10)

Texas has the most, with 30 listings (23% of 130).

2018 GMC Sierra 1500 listings by stateNumber of current 2018 GMC Sierra 1500 listings by dealer state: Texas 30, Alabama 16, North Carolina 9, California 7, Ohio 6, Arkansas 5, South Dakota 5, Tennessee 5, Oklahoma 4, Georgia 3.TexasTexas: 30 · 23%30 · 23%AlabamaAlabama: 16 · 12%16 · 12%North CarolinaNorth Carolina: 9 · 7%9 · 7%CaliforniaCalifornia: 7 · 5%7 · 5%OhioOhio: 6 · 5%6 · 5%ArkansasArkansas: 5 · 4%5 · 4%South DakotaSouth Dakota: 5 · 4%5 · 4%TennesseeTennessee: 5 · 4%5 · 4%OklahomaOklahoma: 4 · 3%4 · 3%GeorgiaGeorgia: 3 · 2%3 · 2%
Counts current AutosXchange listings by the selling dealer's state (33 states in total).
By trim

2018 GMC Sierra 1500: listings by trim (top 4)

SLT is the most-listed trim (58 listings); Denali has the highest median asking price of these, $29,920.

2018 GMC Sierra 1500 listings by trimSLT: 58 listings, median $25,948; Denali: 19 listings, median $29,920; SLE: 6 listings, median $21,449; Base: 3 listings, median $17,900.SLTSLT: 58 · median $25.9k58 · median $25.9kDenaliDenali: 19 · median $29.9k19 · median $29.9kSLESLE: 6 · median $21.4k6 · median $21.4kBaseBase: 3 · median $17.9k3 · median $17.9k
Trim is read from the listing title (the word after the model name), so it is approximate. Trims with fewer than 3 listings are not shown.
Current listings

2018 GMC Sierra 1500 for sale now: best value first

2018 GMC Sierra 1500 4WD Crew Cab 143.5" SLT for sale in Jacksonville, AR40% below similar
2018 GMC Sierra 1500 4WD Crew Cab 143.5" SLT$15,200182,582 mi · Jacksonville, ARHawg Wild Auto Sales
2018 GMC Sierra 1500 for sale in Abington, MA39% below similar
2018 GMC Sierra 1500$15,450138,426 mi · Abington, MA810 AUTO MOTORS
2018 GMC Sierra 1500 SLT for sale in Dickinson, TX38% below similar
2018 GMC Sierra 1500 SLT$15,675201,738 mi · Dickinson, TXGay Buick GMC
2018 GMC Sierra 1500 SLE Double Cab 4WD for sale in Boise, ID33% below similar
2018 GMC Sierra 1500 SLE Double Cab 4WD$16,795134,794 mi · Boise, IDBoise Auto Sales LLC
2018 GMC Sierra 1500 for sale in Columbus, OH33% below similar
2018 GMC Sierra 1500$16,995156,097 mi · Columbus, OHOne Stop Auto Care LLC
2018 GMC Sierra 1500 4WD Double Cab 143.5" SLE for sale in Las Vegas, NV32% below similar
2018 GMC Sierra 1500 4WD Double Cab 143.5" SLE$16,999167,480 mi · Las Vegas, NVNATIONWIDE AUTO SALES
2018 GMC Sierra 1500 2WD SLT Crew Cab for sale in San Antonio, TX29% below similar
2018 GMC Sierra 1500 2WD SLT Crew Cab$17,800154,588 mi · San Antonio, TXSouth Texas Auto
2018 GMC Sierra 1500 Base Double Cab 2WD for sale in Phoenix, AZ29% below similar
2018 GMC Sierra 1500 Base Double Cab 2WD$17,900109,800 mi · Phoenix, AZPrime Motors of Phoenix
2018 GMC Sierra 1500 SLT for sale in Round Rock, TX29% below similar
2018 GMC Sierra 1500 SLT$17,999112,614 mi · Round Rock, TXCapital City Trucks LLC
2018 GMC Sierra 1500 4WD Double Cab 143.5" SLE for sale in Detroit, MI29% below similar
2018 GMC Sierra 1500 4WD Double Cab 143.5" SLE$17,999143,291 mi · Detroit, MICarz Auto Sales
2018 GMC Sierra 1500 for sale in Hominy, OK28% below similar
2018 GMC Sierra 1500$18,250154,000 mi · Hominy, OKHOMINY AUTO SALES
2018 GMC Sierra 1500 SLT for sale in Garland, TX27% below similar
2018 GMC Sierra 1500 SLT$18,495133,890 mi · Garland, TXInternational Auto Sales
2018 GMC Sierra 1500 SLT for sale in Carrollton, TX25% below similar
2018 GMC Sierra 1500 SLT$18,800172,830 mi · Carrollton, TXPerfect Motorcars
2018 GMC Sierra 1500 Double Cab Standard Box 2-Wheel Drive for sale in Columbus, MI25% below similar
2018 GMC Sierra 1500 Double Cab Standard Box 2-Wheel Drive$18,98891,339 mi · Columbus, MIMark Wahlberg Buick GMC
2018 GMC Sierra 1500 for sale in Cuyahoga Falls, OH25% below similar
2018 GMC Sierra 1500$18,99073,249 mi · Cuyahoga Falls, OHMinnix Auto Sales LLC
2018 GMC Sierra 1500 SLE Double Cab 4WD for sale in Louisville, KY25% below similar
2018 GMC Sierra 1500 SLE Double Cab 4WD$18,995134,740 mi · Louisville, KYAutomotive Solutions
2018 GMC Sierra 1500 for sale in San Antonio, TX25% below similar
2018 GMC Sierra 1500$18,995117,147 mi · San Antonio, TXGold Star Motors Inc.
2018 GMC Sierra 1500 for sale in Putnam, CT23% below similar
2018 GMC Sierra 1500$19,450118,782 mi · Putnam, CTFIORE'S AUTO & TRUCK
2018 GMC Sierra 1500 SLT for sale in Greensboro, NC23% below similar
2018 GMC Sierra 1500 SLT$19,500153,207 mi · Greensboro, NCTriple A's Motors
2018 GMC SIERRA 1500 SLE for sale in Columbus, OH22% below similar
2018 GMC SIERRA 1500 SLE$19,55095,962 mi · Columbus, OHAuto Palace
2018 GMC Sierra 1500 SLT for sale in Houston, TX21% below similar
2018 GMC Sierra 1500 SLT$19,995145,300 mi · Houston, TXGiant Auto Mart
2018 GMC Sierra 1500 SLT for sale in Jefferson, GA19% below similar
2018 GMC Sierra 1500 SLT$20,499143,601 mi · Jefferson, GAAtlanta United Motors
2018 GMC Sierra 1500 SLT Crew Cab Short Box 4WD for sale in Westover, AL19% below similar
2018 GMC Sierra 1500 SLT Crew Cab Short Box 4WD$20,500167,385 mi · Westover, ALShaw Motors
2018 GMC Sierra 1500 for sale in Springfield, IL18% below similar
2018 GMC Sierra 1500$20,695123,533 mi · Springfield, ILZain Motors
See all 130 2018 GMC Sierra 1500 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 1500 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 1500 for sale by city

FAQ

Frequently asked questions

What is the average asking price of a 2018 GMC Sierra 1500?
Across 130 current listings on AutosXchange, the median asking price of a 2018 GMC Sierra 1500 is $24,995. Most listings (10th to 90th percentile) ask between $15,425 and $32,988. These are dealer asking prices, not sold prices.
How many GMC Sierra 1500 are for sale?
AutosXchange currently lists 130 vehicles from 115 dealerships in 33 states.
What mileage is typical for a 2018 GMC Sierra 1500?
The median odometer reading is 111,927 miles; the middle half of listings show between 84,649 and 138,295 miles (130 listings with a published odometer).
What is a fair asking price for a 2018 GMC Sierra 1500?
Half of current listings ask between $20,121 and $29,066 (25th to 75th percentile), around a median of $24,995. 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 1500 for sale?
Texas has the most current listings (30), followed by Alabama (16).

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.