$4,354 lower median
2018 Ford F-150
$22,995Median asking price · 5,643 qualifying listings
Middle 50%$18,999–$27,249
Find listings on VehiSales ↗Actual XLT listing photo; individual equipment may differ.
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2018 GMC Sierra prices in the U.S.
$27,353
Median pre-owned asking price
2,374 pre-owned listings · Updated November 4, 2026
Price your exact car
National price overview
Typical asking price range
$22,995 – $31,995 All 2,378 listings · Middle 50% of asking pricesMedian asking price
$27,344Trim, mileage and condition change what a comparable vehicle costs.
As of November 4, 2026, the median asking price for a used 2018 GMC Sierra in the U.S. is $27,353, based on 2,374 active dealer listings tracked by VinAssessment.
Behind the price
Price range & market sample
The median pre-owned asking price for a 2018 GMC Sierra in the U.S. is $27,353 based on 2,374 pre-owned listings (of 2,378 total).
2,378 active dealer listings
Snapshot November 4, 2026 · refreshed daily
30-day asking price change: −$147.
Typical: $22,995–$31,995 — the middle half of 2,378 asking prices
Median $27,344
$15K low
$48K high
Why the wide range? Price depends mostly on configuration and mileage — see below. This spread covers the middle 96% of asking prices: we exclude the cheapest and priciest 2% to reduce the influence of extreme values. This does not verify title status or guarantee that every erroneous listing is excluded.
$27,353
Pre-owned median (2,374)
111,567
Average mileage
What moves the price
Trim
The SLE typically asks $23,360, while the Denali asks $32,075 — same year, same market.
Observed spread: up to $8,715Location
Active-listing medians are $24,995 in Michigan (99 active listings) and $30,992 in Idaho (33 active listings). Mileage, trim and condition differ; this is not an estimate of savings from buying in another state.
Observed spread: up to $5,997Mileage
Asking prices run about $29,398 under 15K miles and fall to $24,684 over 105K miles — roughly $400 for every 10,000 miles. These are different vehicles; trim, condition and equipment also vary.
Observed spread: up to $4,714About these price differences
The $22,995–$31,995 typical range isn't randomness — three factors explain most of it:
Biggest factor in these observed spreads: Trim. These groups contain different vehicles.
Find your mileage and trim in the configurator below.
Configure the exact car
Choose a state and trim once to update the connected price tables and charts for a 2018 GMC Sierra. Mileage adjusts the estimate only.
Trim
Total miles the car has already driven, as shown on its odometer.
mi
Estimated asking price · All trims
$27,344
$22,995
–
$31,995
2,378 listings · Nationwide
ⓘ This is a modelled estimate based on current listings and market data. Actual prices may vary.
Estimate assumptions
at typical mileage, nationwide
Modelled from 2,378 real asking prices, adjusted for mileage and location. An illustrative estimate from mixed listing groups, not matched vehicles. Not a formal appraisal.
Live 2018 GMC Sierra listings, priced by VIN
Compared with all listings
All-listings median $27,344
2018 GMC Sierra
Trim not specified
$10,350
VIN 1GTN1LEC4JZ902090
−$16,994 · vs all-listings median
2018 GMC Sierra
SLT
$12,999
VIN 3GTU2NEC8JG125076
−$14,345 · vs all-listings median
2018 GMC Sierra
SLE
$13,490
VIN 1GTV2MEC5JZ297404
−$13,854 · vs all-listings median
View 9 more priced VINs
- Trim not specified VIN 1GT12REG2JF234910 $12,249 −$15,095 vs median
- Trim not specified VIN 1GTR1LEC7JZ259980 $15,995 −$11,349 vs median
- SLT VIN 3GTU2NEC1JG288765 $15,995 −$11,349 vs median
- SLE VIN 1GTV2MEC5JZ182429 $16,995 −$10,349 vs median
- Trim not specified VIN 1GTN2LEC3JZ148466 $16,995 −$10,349 vs median
- SLT VIN 3GTU2NEC5JG366450 $17,925 −$9,419 vs median
- Denali VIN 3GTP1PEC1JG512905 $20,995 −$6,349 vs median
- SLE VIN 1GTV2MEC4JZ357107 $19,842 −$7,502 vs median
- Denali VIN 3GTU2PEJXJG575158 $25,445 −$1,899 vs median
Price differences are not deal ratings. Compare equipment, mileage and vehicle history before judging a price.
Every VIN links to a full market report: decode, active listings and the local price band.
A little comparison goes a long way
About this comparison ↓What else could you drive?
Compare 2018 GMC Sierra with other models from the same year. Choose the trims that matter to you.
As of November 4, 2026, among alternatives (model years 2018–2020) to the 2018 GMC Sierra in this catalog, the 2018 Nissan Titan has the lowest median asking price ($21,995, 422 listings with photos) and the 2018 Toyota Tundra the highest ($30,998, 547 listings).
Comparison catalog · Snapshot November 4, 2026, 05:00 UTC · Only listings with photos. This sample is separate from the price overview above and its figures differ.
Your comparison starting point
2018 GMC Sierra
All trims · United States
The price overview above is this page’s reference figure. The comparison below uses its own catalog sample: 2,002 listings with photos, catalog median $27,349 (the baseline for the “lower/higher” badges).
Middle 50%: $22,995–$31,922
Photo: SLT · 102,503 mi · view VIN
Explore the alternatives
$3,649 higher median
2018 Toyota Tundra
$30,998Median asking price · 547 qualifying listings
Middle 50%$26,980–$35,980
Find listings on VehiSales ↗Actual SR5 listing photo; individual equipment may differ.
$4,053 lower median
2018 Chevrolet Silverado
$23,296Median asking price · 4,216 qualifying listings
Middle 50%$19,087–$27,781
Find listings on VehiSales ↗Actual LT listing photo; individual equipment may differ.
$46 higher median
2020 Ram 1500
$27,395Median asking price · 3,829 qualifying listings
Middle 50%$23,665–$31,358
Find listings on VehiSales ↗Actual several trims listed listing photo; individual equipment may differ.
$5,354 lower median
2018 Nissan Titan
$21,995Median asking price · 422 qualifying listings
Middle 50%$18,995–$24,995
Find listings on VehiSales ↗Actual SV listing photo; individual equipment may differ.
No alternatives have a lower median in this selection. Broaden your filters or turn off “Lower median price only”.
Compare prices side by side
| Model / trim | Median | Middle 50% | Listings |
|---|---|---|---|
| 2018 GMC Sierra All trims | see price overview above | $22,995–$31,922 | 2,002 |
| 2018 Ford F-150 All trims | $22,995 | $18,999–$27,249 | 5,643 |
| 2018 Toyota Tundra All trims | $30,998 | $26,980–$35,980 | 547 |
| 2018 Chevrolet Silverado All trims | $23,296 | $19,087–$27,781 | 4,216 |
| 2020 Ram 1500 All trims | $27,395 | $23,665–$31,358 | 3,829 |
| 2018 Nissan Titan All trims | $21,995 | $18,995–$24,995 | 422 |
What these prices mean
Only catalog listings with photos are included. Trim names do not verify equivalent equipment. Prices are asking prices, not completed sales. Alternatives share the body style and class of the source model; the nearest model years are used when the same year has too few listings. Price differences are not a valuation adjustment or guaranteed savings.
Snapshot: November 4, 2026, 05:00 UTC. 7 source listings excluded by statistical price screening; this does not verify that every deposit or payment ad has been removed.
VehiSales opens in a new tab with the model, year and known mileage range. Confirm trim, fuel, drivetrain, condition and location on VehiSales; its live inventory may differ.
2018 GMC Sierra: a fair price for your mileage
Mileage means the miles recorded on the odometer. Compare asking prices in your mileage band, then select a trim — the equipment version — to narrow the comparison where data is available.
Across the national mileage bands, the overall difference is roughly $400 per 10,000 miles. These are different vehicles, not depreciation of the same car.
Region · trim United States · All trims
Active listings 2,378
Median asking price $27,344
Mileage means the total miles on the odometer. Each point shows the median asking price for a mileage band; shaded areas show the middle 50% of prices.
Swipe the chart horizontally to see every mileage band.
Compare all trims at the same mileage
Compare like-for-like mileage
United States · all states · November 4, 2026
Read across a row to compare trims at a similar odometer reading. Each price is the median asking price for that group, not a valuation of your exact car.
Scroll sideways to compare all trims. Mileage stays visible on the left.
| Mileage (odometer) | All listings | SLT | Denali | SLE |
|---|---|---|---|---|
| Under 15K miles | $29,398 | $30,898 | $45,698 | — |
| 15K–30K miles | $39,000 | $40,497 | $41,808 | — |
| 30K–45K miles | $35,258 | $35,048 | $36,996 | $28,997 |
| 45K–60K miles | $33,837 | $33,354 | $36,822 | $28,104 |
| 60K–75K miles | $31,725 | $31,298 | $35,412 | $25,378 |
| 75K–90K miles | $29,998 | $29,918 | $32,672 | $24,847 |
| 90K–105K miles | $28,488 | $28,215 | $31,699 | $24,072 |
| Over 105K miles | $24,684 | $24,480 | $29,868 | $19,966 |
“—” means insufficient data: at least 3 listings per trim and mileage band, or 5 for all trims combined. Equipment, condition and location can still differ within a row.
Counts cover the selected region and trim, including listings without usable mileage. Thin mileage bands and rare or unknown trims may be omitted from the chart.
View the full national mileage price table
Fair price by mileage — all versions combined
| Mileage ⓘ | Based on ⓘ | Fair price ⓘ | Typical range ⓘ |
|---|---|---|---|
| Under 15K miles | 11 listings | $29,398 | $24K–$40K |
| 15K–30K miles | 20 listings | $39,000 | $36K–$46K |
| 30K–45K miles | 46 listings | $35,258 | $33K–$37K |
| 45K–60K miles | 107 listings | $33,837 | $30K–$38K |
| 60K–75K miles | 211 listings | $31,725 | $29K–$35K |
| 75K–90K miles | 303 listings | $29,998 | $27K–$33K |
| 90K–105K miles | 386 listings | $28,488 | $26K–$32K |
| Over 105K miles | 1,289 listings | $24,684 | $20K–$28K |
United States — all states. These bands combine different trims, conditions and listing histories. They do not hold trim or condition constant.
2018 GMC Sierra: price by trim
United States · all states · November 4, 2026. Counts and prices below are national totals for each trim. The shared market filters update this table for your selected state and highlight your trim.
| Trim | Based on ⓘ | Median price ⓘ | Typical range ⓘ | Where it sits ⓘ |
|---|---|---|---|---|
| SLT | 1,326 listings | $27,074 | $24K–$30K | |
| Denali | 601 listings | $32,075 | $28K–$39K | |
| SLE | 257 listings | $23,360 | $20K–$27K |
Understand the differences
2018 GMC Sierra: VIN configurations and specifications
Multiple VIN patterns can share the same trim. Compare their recorded equipment, then open a specification page for the full details.
-
SLE 4.3L 6-cyl VIN pattern: 1GTR1MEH · year code J51 VINs in our database Observed VINs, not production totals
-
SLE 6.6L 8-cyl · 4WD VIN pattern: 1GT12SEY · year code J$34,950 Median asking price · U.S. 10 priced listings · November 1, 2026
-
Denali 5.3L 8-cyl VIN pattern: 3GTP1PEC · year code J$27,499 Median asking price · U.S. 17 priced listings · November 1, 2026
-
SLT 5.3L 8-cyl · 4WD VIN pattern: 3GTU2NER · year code J$27,880 Median asking price · U.S. 80 priced listings · November 1, 2026
Show 20 more configurations
-
Denali 6L 8-cyl · 4WD VIN pattern: 1GT42YEG · year code J27 VINs in our database Observed VINs, not production totals
-
Denali 6.2L 8-cyl VIN pattern: 3GTP1PEJ · year code J$27,500 Median asking price · U.S. 5 priced listings · November 1, 2026
-
Fleet/Base 5.3L 8-cyl · 4WD VIN pattern: 3GTU2LEC · year code J$20,737 Median asking price · U.S. 12 priced listings · November 1, 2026
-
Fleet/Base 4.3L 6-cyl VIN pattern: 1GTR1LEH · year code J$21,998 Median asking price · U.S. 6 priced listings · November 1, 2026
-
Fleet/Base 6.6L 8-cyl · 4WD VIN pattern: 1GT42VCY · year code J203 VINs in our database Observed VINs, not production totals
-
Fleet/Base 5.3L 8-cyl · 4WD VIN pattern: 1GTV2LEC · year code J$20,728 Median asking price · U.S. 93 priced listings · November 1, 2026
-
Fleet/Base 6L 8-cyl VIN pattern: 1GT01REG · year code J63 VINs in our database Observed VINs, not production totals
-
SLT 6.6L 8-cyl · 4WD VIN pattern: 1GT12TEY · year code J$38,198 Median asking price · U.S. 105 priced listings · November 1, 2026
-
SLT 6.2L 8-cyl · 4WD VIN pattern: 1GTV2NEJ · year code J$27,982 Median asking price · U.S. 13 priced listings · November 1, 2026
-
SLE 6.6L 8-cyl · 4WD VIN pattern: 1GT42WCY · year code J$38,700 Median asking price · U.S. 14 priced listings · November 1, 2026
-
Denali 6.6L 8-cyl · 4WD VIN pattern: 1GT42YEY · year code J$44,297 Median asking price · U.S. 113 priced listings · November 1, 2026
-
SLT 6.2L 8-cyl VIN pattern: 3GTP1NEJ · year code J85 VINs in our database Observed VINs, not production totals
-
Denali 6.6L 8-cyl · 4WD VIN pattern: 1GT12UEY · year code J$42,786 Median asking price · U.S. 222 priced listings · November 1, 2026
-
Fleet/Base 4.3L 6-cyl · 4WD VIN pattern: 3GTU2LEH · year code J24 VINs in our database Observed VINs, not production totals
-
SLT 6L 8-cyl · 4WD VIN pattern: 1GT12TEG · year code J$33,308 Median asking price · U.S. 28 priced listings · November 1, 2026
-
SLE 4.3L 6-cyl · 4WD VIN pattern: 3GTU2MEH · year code J58 VINs in our database Observed VINs, not production totals
-
SLE 6L 8-cyl · 4WD VIN pattern: 1GT02SEG · year code J29 VINs in our database Observed VINs, not production totals
-
SLT 6L 8-cyl · 4WD VIN pattern: 1GT22TEG · year code J$30,402 Median asking price · U.S. 8 priced listings · November 1, 2026
-
SLE 5.3L 8-cyl VIN pattern: 1GTN1MEC · year code J36 VINs in our database Observed VINs, not production totals
-
SLE 5.3L 8-cyl · 4WD VIN pattern: 1GTN2MEC · year code J$27,611 Median asking price · U.S. 7 priced listings · November 1, 2026
Where these specifications come from
Specifications combine decoded VIN data, including NHTSA vPIC , with inventory records. If decoding does not identify a trim, a recorded inventory trim may be shown. VIN patterns do not confirm every installed option.
Counts describe observed VINs in our database, not factory production totals. Prices are median asking prices from qualifying U.S. listings, not original MSRP. Check the vehicle’s build sheet for exact equipment.
FACTORY REFERENCE
2018 GMC Sierra factory brochure
Model-year reference for features and equipment. Actual VIN equipment may differ.
No verified factory brochure is currently listed for this exact model year.
Need equipment for a specific vehicle? Look up its factory window sticker →
Price history
Change state or trim for this report →
View national price history · all trims
Median asking price by month — U.S., all trims · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2018 GMC Sierra is $27,992 (November 2026), unchanged from June 2026.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| November 2026 | $27,992 | $23K–$32K | 412 |
| October 2026 | $27,040 | $22K–$32K | 1,047 |
| September 2026 | $27,885 | $23K–$33K | 793 |
| August 2026 | $27,998 | $23K–$33K | 486 |
| July 2026 | $27,999 | $23K–$33K | 477 |
| June 2026 | $27,999 | $23K–$34K | 313 |
2018 GMC Sierra prices by state
See how asking prices vary across states. Looking for a 2018 GMC Sierra for sale near you? Open your state's price guide to compare its market, then follow the local listings link to browse available vehicles.
United States · all trims · snapshot November 4, 2026. Explore state markets below. Prices and counts cover all trims in each state; the full comparison table remains available below the map.
Explore 43 more state markets
Hawaii
Typical asking price
$28,693
- Active listings
- 1
- Listed this year
- 5
Not enough active listings for a state price report.
View the U.S. inventory map
What does this map show?
The numbers are active listings, not prices. Badges mark the 8 busiest mapped states to keep the map readable; other states can also have listings.
Hover over a state or focus it with your keyboard for details. Click a linked state or its number to open that state's price page.
State details will appear here. On a phone, tap a linked state to open its prices; use the full table for easier browsing.
Scroll the map sideways on smaller screens. Numbers stay large enough to read.
Most active listings
Other states with active listings
No active listings or insufficient data
Alaska and Hawaii are not drawn on this map. Where qualifying data is available, they appear in the full state table. Grey does not necessarily mean no cars are for sale.
View all states and prices
Listed this year counts every 2018 GMC Sierra first listed in 2026 (sold and active), with currently active cars as a floor. Typical price is the median of each car's latest asking price — or the average of active listings where this-year data is thin.
EXPLORE THE YEARS
Other GMC Sierra years
Same model, a different chapter. Start with a nearby year, or open the complete timeline.
An earlier model year
2017
GMC Sierra
Typical asking price
$23,990
Explore this year →
You are here
2018
GMC Sierra
Typical asking price
$27,344
Your current report
A newer model year
2019
GMC Sierra
Typical asking price
$30,587
Explore this year →
See how model-year prices compare
U.S. market · All trimsDifferent model years, shown on the same dollar scale. Median asking price where available; otherwise average. These are different vehicles, not a forecast of your car’s value.
- 2027 $87,459 Median
- 2026 $62,650 Median
- 2025 $46,141 Median
- 2024 $46,215 Median
- 2023 $43,594 Median
- 2022 $40,186 Median
- 2021 $35,216 Median
- 2020 $34,524 Median
- 2019 $30,587 Median
-
You are here 2018 $27,344 Median
- 2017 $23,990 Median
- 2016 $22,978 Median
- 2015 $20,576 Median
- 2014 $17,100 Median
- 2013 $15,997 Median
- 2012 $14,708 Median
Showing the newest 16 priced model years plus your current year when older. Open the complete timeline below for older years.
Explore all 35 other model years
Pick a year to open its price report. Prices compare different vehicles and equipment, not the changing value of one car.
Nearby model years
2014
$17,100
2015
$20,576
2016
$22,978
2017
$23,990
2019
$30,587
2020
$34,524
2021
$35,216
2022
$40,186
More model years
1989
$15,948
1993
$14,448
1994
$9,995
1995
$11,991
1996
$15,000
1997
$11,750
1998
$8,745
1999
$14,220
2000
$10,600
2001
$10,498
2002
$9,900
2003
$11,523
2004
$11,595
2005
$12,992
2006
$12,219
2007
$12,995
2008
$11,947
2009
$10,995
2010
$11,950
2011
$13,064
2012
$14,708
2013
$15,997
2023
$43,594
2024
$46,215
2025
$46,141
2026
$62,650
2027
$87,459
MEET THE REST OF THE LINEUP
More 2018 GMC prices
Something else catch your eye? Explore other 2018 GMC models before you decide.
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GMC Terrain
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GMC Yukon XL
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GMC Canyon
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GMC Savana
Explore this model →Prices shown for other models are average asking prices in the national snapshot. Photos are representative; trim and equipment vary.
What would a 2018 GMC Sierra cost per month?
Estimate the monthly payment on a $27,074 vehicle. Move the numbers to match your own loan.
10% down
7.0% is an illustrative starting rate — use your own lender quote.
Loan term
Estimated monthly payment
$482
per month
60 months · 7.0% APR · $2,707 down
Amount financed
$24,367
Total interest
$4,553
Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.
Before you buy
A few important steps can help you buy with confidence.
- Check title and accident history
- Arrange an independent inspection
- Review factory equipment
- Check recalls by VIN
Frequently asked questions
Why do 2018 GMC Sierra prices range from $14,737 to $48,438?
The spread comes down to configuration and mileage: higher-mileage, base-configuration examples sit near the low end, while low-mileage and premium configurations reach the top. Half of all listings fall between $22,995 and $31,995 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2018 GMC Sierra?
Across the lowest- and highest-mileage groups, asking prices differ by roughly $400 per 10,000 miles. These groups contain different vehicles: this is not a same-trim adjustment or a forecast for one car. Compare the mileage and trim tables, then check condition, equipment and vehicle history.
How many 2018 GMC Sierra are for sale right now?
2,378 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
Is this the trade-in value or private-party value of my 2018 GMC Sierra?
These figures describe dealer asking prices, not trade-in offers, private-party sale values or completed sale prices. Use them to compare advertised vehicles. To find out what a buyer or dealer would pay for your car, request an offer that takes its mileage, condition, equipment and history into account.
How we calculate these prices
We track 2,378 active listings for this vehicle across dealer sites nationwide, updated every day. Average and median are computed from real asking prices on live listings. We exclude the top and bottom 2% of prices to reduce the influence of extreme values. This does not verify title status or guarantee that every erroneous listing is excluded. Prices reflect dealer asking prices — not final sale prices — and exclude taxes, fees, and incentives. Trim and mileage move the price more than any other factor; see the breakdowns above.
Want the original factory equipment and MSRP behind a specific car? Get the window sticker by VIN →
Own a 2018 GMC Sierra? See what it's worth →
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