Sell My Car

Used GMC Sierra for Sale in O'Fallon, MO

6 used GMC Sierra listed by 4 local dealers in O'Fallon, MO. Median asking price $35,900.

6vehicles
4dealerships
$11,900–$57,950price range
$35,900median price
130,000median miles

6 vehicles

Frequently asked questions

How many used cars are for sale in O'Fallon, MO (GMC Sierra)?
AutosXchange currently lists 6 vehicles in O'Fallon, MO (GMC Sierra) from 4 dealerships.
What is the average price of a used car in O'Fallon, MO (GMC Sierra)?
The median dealer-advertised price is $35,900, ranging from $11,900 to $57,950.
Are there used cars under $20,000 in O'Fallon, MO (GMC Sierra)?
Yes. 2 of the 6 vehicles listed in O'Fallon, MO (GMC Sierra) are priced under $20,000.
What are the most common makes for sale in O'Fallon, MO (GMC Sierra)?
The most-listed makes are GMC (6).

Dealer listings are supplied by each dealership from its own website and refreshed as inventory changes; prices are dealer-advertised asking prices, so confirm availability, fees and final price with the selling dealer. Listings marked "Private seller" are submitted by the car's owner and reviewed by AutosXchange; AutosXchange does not inspect private-party vehicles.

AutosXchange Intel

Who removed and who added cars in O'Fallon, MO

Last 7 days, from listing tracking of every dealer. Removed = not advertised anywhere since (not always a sale); cars moved to another dealer and bulk feed changes are not counted.

Removed the most

  1. Jim Trenary Chevrolet — 23 removed (2026 Chevrolet Silverado 1500 ×2…)
  2. MYLENBUSCH AUTO SOURCE — 3 removed (2018 Ford Transit…)

All 26 cars removed in O'Fallon, MO, last 7 days →

Added the most

  1. MYLENBUSCH AUTO SOURCE — 3 added (2023 Chevrolet TrailBlazer…)
  2. JWF Motor Company — 1 added (2012 GMC Sierra 1500…)

All 4 cars added in O'Fallon, MO, last 7 days →

Dealer activity in O'Fallon, MO · Heatmap