1,856 New GMC Sierra for Sale Near Lone Tree, CO

There are 1,856 new GMC Sierra listings for sale from 47 dealerships, priced from $40,195 to $139,799.

The median asking price for a new GMC Sierra is $71,357. Listings range from $40,195 to $139,799. The average mileage is 100 miles.

The lowest-priced listing is a 2026 GMC Sierra Pro 4WD Regular Cab Standard Box at $40,195 in Casper, WY.

New GMC Sierra inventory spans model years 2024 to 2026. The 2024–2028 model years are the most available, with 1,856 listings.

The GMC Sierra is available in the following trim levels:

• GMC Sierra Elevation 4WD Crew Cab Standard Box for sale245 listings
• GMC Sierra Pro 4WD Crew Cab Standard Box for sale168 listings
• GMC Sierra AT4 4WD Crew Cab Standard Box for sale161 listings
• GMC Sierra Denali 4WD Crew Cab Short Box for sale155 listings
• GMC Sierra Denali 4WD Crew Cab Standard Box for sale126 listings
• GMC Sierra SLT 4WD Crew Cab Short Box for sale123 listings
• GMC Sierra AT4 4WD Crew Cab Short Box for sale98 listings
• GMC Sierra Denali Ultimate 4WD Crew Cab Standard Box for sale76 listings
• GMC Sierra Pro 4WD Crew Cab Long Box for sale71 listings
• GMC Sierra AT4X 4WD Crew Cab Standard Box for sale66 listings