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The price range for a 3-bedroom apartment in Saint Charles, MO is between $1,602 and $3,532.
There are 17 3 bedroom rentals available on RentCafe. Prices and availability in Saint Charles, MO were last updated on 4 Oct 2026.
The average Saint Charles, MO 3 bedroom apartment size is 1,321 sq. ft.
Renting a 3 bedroom apartment offers extra space compared to a 2 bedroom apartment, suited for a family or for sharing it with someone else.
A 3 bedroom apartment is more expensive than smaller units and it usually comes with higher utility costs.
Upgrading to a 3 bedroom apartment can have its pros and cons. Most renters who are looking for a three bedroom rental is because they need extra space for a home office, or for a child. This size apartment is also practical to share with roommates as it actually saves money on rent when 3 or 4 people get together to rent a 3 bedroom unit. They are very spacious, averaging around 1,155 Sqft. Or you can get even more space if you select “3+” beds in the top menu. The only down side is that they cost more. In Saint Charles, MO, rents on 3 bedroom apartments go up to $3,532. 25 rental properties offer 3 bedroom units in Saint Charles, MO to choose from. You are more likely to find 3 bedroom apartments in primarily residential neighborhoods, away from business districts and urban cores.
For most renters, the cost of rent is the major pain point. The larger the apartment, the more money comes out of their pocket. For that reason, cheap 3 bedroom apartments are in high demand and hard to come by. Though rent prices can go as low as $1,035 in Saint Charles, MO, the market is still tight. But with a little diligence and some handy search tools, you will find an affordable apartment. Try an area that’s further away from the main city attractions, or try an older building that may have cheaper apartments and a ton of charm. Sometimes lower-priced residential areas have diversity and ethnic authenticity that lend them a lot of character and color.
