4,849 New GMC Sierra for Sale Near Slidell, LA

There are 4,849 new GMC Sierra listings for sale from 72 dealerships, priced from $35,753 to $127,365.

The median asking price for a new GMC Sierra is $66,384. Listings range from $35,753 to $127,365. The average mileage is 172 miles.

The lowest-priced listing is a 2026 GMC Sierra Pro 2WD Crew Cab Short Box at $35,753 in Metairie, LA.

New GMC Sierra inventory spans model years 2025 to 2026. The 2025–2029 model years are the most available, with 4,849 listings.

The GMC Sierra is available in the following trim levels:

• GMC Sierra SLT 4WD Crew Cab Short Box for sale1,009 listings
• GMC Sierra AT4 4WD Crew Cab Short Box for sale509 listings
• GMC Sierra AT4 4WD Crew Cab Standard Box for sale420 listings
• GMC Sierra Denali 4WD Crew Cab Short Box for sale408 listings
• GMC Sierra Denali 4WD Crew Cab Standard Box for sale315 listings
• GMC Sierra Elevation 4WD Crew Cab Standard Box for sale251 listings
• GMC Sierra Denali Ultimate 4WD Crew Cab Standard Box for sale228 listings
• GMC Sierra Pro 4WD Crew Cab Standard Box for sale225 listings
• GMC Sierra SLT 4WD Crew Cab Standard Box for sale187 listings
• GMC Sierra Pro 2WD Crew Cab Short Box for sale162 listings