Sell My Car

Used Cars for Sale in St. Peters, MO

Browse 427 used cars, trucks and SUVs for sale in St. Peters, MO from 2 local dealerships. Median asking price $33,947, median 11 miles.

427vehicles
2dealerships
$8,800–$63,619price range
$33,947median price
11median miles

427 vehicles · page 1 of 9

Frequently asked questions

How many used cars are for sale in St. Peters, MO?
AutosXchange currently lists 427 vehicles in St. Peters, MO from 2 dealerships.
What is the average price of a used car in St. Peters, MO?
The median dealer-advertised price is $33,947, ranging from $8,800 to $63,619.
Are there used cars under $20,000 in St. Peters, MO?
Yes. 18 of the 427 vehicles listed in St. Peters, MO are priced under $20,000.
What are the most common makes for sale in St. Peters, MO?
The most-listed makes are Kia (382), Ford (5), Chevrolet (4).

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 St. Peters, 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. Napleton's Mid Rivers Kia — 6 removed (2026 Kia K4…)

All 6 cars removed in St. Peters, MO, last 7 days →

Added the most

  1. Napleton's Mid Rivers Kia — 13 added (2027 Kia K5 ×5…)

All 13 cars added in St. Peters, MO, last 7 days →

Dealer activity in St. Peters, MO · Heatmap