1,173 New GMC Sierra for Sale Near Helena, MT

There are 1,173 new GMC Sierra listings for sale from 22 dealerships, priced from $38,690 to $108,269.

The median asking price for a new GMC Sierra is $81,440. Listings range from $38,690 to $108,269. The average mileage is 71 miles.

The lowest-priced listing is a 2026 GMC Sierra Pro 4WD Regular Cab Standard Box at $38,690 with 10 miles in Kalispell, MT.

New GMC Sierra inventory spans model years 2024 to 2026. The 2024–2028 model years are the most available, with 1,173 listings.

The GMC Sierra is available in the following trim levels:

• GMC Sierra AT4 4WD Crew Cab Standard Box for sale188 listings
• GMC Sierra Denali 4WD Crew Cab Standard Box for sale87 listings
• GMC Sierra Denali Ultimate 4WD Crew Cab Long Box for sale81 listings
• GMC Sierra AT4 4WD Crew Cab Long Box for sale79 listings
• GMC Sierra Denali 4WD Crew Cab Short Box for sale75 listings
• GMC Sierra SLT 4WD Crew Cab Short Box for sale73 listings
• GMC Sierra SLT 4WD Crew Cab Standard Box for sale61 listings
• GMC Sierra Elevation 4WD Crew Cab Standard Box for sale57 listings
• GMC Sierra Denali Ultimate 4WD Crew Cab Standard Box for sale50 listings
• GMC Sierra Pro 4WD Crew Cab Standard Box for sale50 listings