GMC Sierra 2500HD Market — October 2026
As of October 2026, the median advertised asking price for a new GMC Sierra 2500HD is $83,975 across 25,025 U.S. dealer listings, averaging 90 days on market. Used models list at a median $62,011 across 9,323 listings. These are advertised asking prices, not completed-sale prices. Verified CarWhere buyers paid an average of $71,800 on 2026-model-year deals — 14.5% below asking. Median asking is down 0.4% month-over-month.
New · median asking
$83,975
25,025 listings · as of October 2026
New · days on market
90 days
average across tracked listings
Used · median asking
$62,011
9,323 listings · as of October 2026
Used · days on market
81 days
average across tracked listings
Asking-price trend
Monthly snapshots of the national median asking price (new).
| Month | Median asking | Listings | Avg DOM |
|---|---|---|---|
| August 2026 | $84,378 | 24,241 | 85 |
| September 2026 | $84,305 | 24,956 | 84 |
| October 2026 | $83,975 | 25,025 | 90 |
The median is the market. Your deal is one listing.
Search live GMC Sierra 2500HD inventory near you and compare real asking prices against the national picture — then negotiate from data.
Search Sierra 2500HD listingsFrequently asked questions
How many GMC Sierra 2500HDs are for sale right now?
As of October 2026, CarWhere tracked 25,025 new and 9,323 used GMC Sierra 2500HD listings nationwide.
Is the Sierra 2500HD market moving up or down?
The new Sierra 2500HD's median asking price moved down 0.4% versus the prior month's snapshot ($83,975 as of October 2026). The trend table above shows the month-by-month history.
Are these asking prices or selling prices?
These are ADVERTISED asking prices (medians across tracked listings), not completed-sale prices. Verified CarWhere buyers paid an average $71,800 on 2026-model-year deals — 14.5% below the new median asking.
Where does this data come from?
Market figures are derived aggregates (counts, medians, averages) computed monthly from licensed live-listing data covering U.S. dealer inventory. Buyer-paid figures come exclusively from verified buyer-submitted deal sheets. The two are never mixed.
Data sources, methodology & limitations
- Snapshot date: this page reflects the October 2026 national sweep. Figures refresh with one new snapshot per month.
- Asking prices: medians and counts are derived aggregates computed from licensed live-listing data covering U.S. dealer inventory (listings deduplicated per sweep). They are advertised prices — the out-the-door number a buyer negotiates is typically different.
- Buyer-paid figures: sourced exclusively from verified buyer-submitted deal sheets, labeled with model year and shown only when the sample is large enough. Asking data and paid data are never blended.
- Scope: national aggregates — local markets can sit meaningfully above or below these medians.