Used 2021 Mazda CX-30 for Sale near Missouri

How much does the 2021 Mazda CX-30 cost?

Prices have softened 2.59% compared to this time last year, making it a favorable time to shop this model year.

There are 901 listings available, which suggests you should have a reasonable amount of inventory to compare.

Is the 2021 Mazda CX-30 a good car?

Yes — 4.77/5 owner satisfaction and a 7.5/10 expert rating point to a strong overall showing. The standout strength is Safety at 9/10.

Owners consistently praise the sporty design, interior quality, and driving dynamics, and they also like the luxury feel at an affordable price. The CX-30’s premium vibe and fun-to-drive character come through clearly in the feedback.

The trade-offs are back-seat legroom and the desire for more USB ports, while the expert review also calls out poor handling and fairly pedestrian performance. That makes it a better fit if you want a stylish, comfortable small crossover rather than a pure enthusiast pick.

The CX-30’s positioning works best if you want mainstream practicality with a more upscale feel, and 33.2% of listings are priced as good or great deals.

Is the 2021 Mazda CX-30 reliable?

Owners rate it 4.77/5, a strong signal of long-term satisfaction.

Owner feedback points to a vehicle that feels dependable, with praise centered on its long-term appeal, sporty design, and interior quality. The expert review also emphasizes a refined, sophisticated driving character that supports confidence over time.

Mazda’s cost-effectiveness notes also suggest this model sits in a sweet spot: you get more equipment and a more premium feel than many mainstream rivals without stepping all the way into luxury-brand pricing.

For used buyers, the main long-term ownership risk is less about outright durability and more about whether the specific example has been maintained well and still feels as tight and polished as intended.

What should I look for when buying a used 2021 Mazda CX-30?

Accident-free inventory is solid at 77.2% — always verify the vehicle history report.

You should still check the vehicle history report carefully, because accident-free listings are common but not guaranteed. A pre-purchase inspection should focus on how the cabin, controls, and driving feel hold up, especially if you care about the CX-30’s premium impression. Pay close attention to condition details that affect everyday livability, since owner feedback points to back-seat space and USB-port availability as common pain points.

Key things to evaluate:

• Trim level: The standard setup emphasizes upscale materials and a frameless rearview mirror, while Premium and Premium Plus add black or white leather, and the higher trims bring more luxury-oriented equipment.
• Powertrain: The turbocharged 2.5-liter four-cylinder pairs with a six-speed automatic and i-Activ all-wheel drive, delivering 227 horsepower on regular fuel and up to 250 horsepower on premium fuel.
• Safety package: Every CX-30 Turbo includes i-ActiveSense advanced driver-assistance systems, while Premium Plus adds front and rear parking sensors, rear automatic braking, a surround-view camera, and Traffic Jam Assist.
• Infotainment: The cabin uses an 8.8-inch display that is not a touchscreen, but Apple CarPlay and Android Auto are standard, and Mazda Connected Services includes remote engine starting and vehicle finder functions.
• Fuel efficiency: The turbo model is rated at 25 mpg in combined driving, and the review notes an observed average of 24.1 mpg.

Which 2021 Mazda CX-30 trim should I buy?

The 2021 Mazda CX-30 is offered in 3 trim levels: standard, Premium, and Premium Plus.

Here's the short version:

• standard: This is the best-value choice if you want the CX-30’s upscale design, standard Apple CarPlay and Android Auto, and the full i-ActiveSense safety suite without paying for extras you may not need.
• Premium: This trim adds an adaptive front lighting system, plus luxury-oriented upgrades like SiriusXM satellite radio, navigation, a 12-speaker Bose audio system, and an Active Driving Display.
• Premium Plus: This is the most fully equipped version, adding front and rear parking sensors, rear automatic braking, a surround-view camera system, and Traffic Jam Assist for buyers who want the most convenience and safety tech.

Every CX-30 Turbo includes i-ActiveSense advanced driver-assistance systems, and Premium Plus is the trim that layers on the most additional safety hardware.

Is now a good time to buy a used 2021 Mazda CX-30?

This looks like a moderate, selective buyer’s market, so you can shop carefully and still find worthwhile listings.

• Deal availability: 33.2% of listings are priced as good or great deals.
• Inventory: There are 901 listings available.
• Price trend: Prices have softened 2.59% compared with last year.
• Clean inventory: 77.2% of listings are accident-free.

If you find a listing below $19,041, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 Mazda CX-30's resale value?

The current average of $19,832 sits slightly below last year's $20,360.

That decline suggests the market has eased a bit, which can help you buy more confidently now but may also temper near-term resale upside if you plan to sell soon. If prices stay soft, future sellers may need to lean more heavily on condition, mileage, and equipment to stand out.

The good news is that strong owner satisfaction can help support demand when it’s time to resell. Vehicles with strong owner satisfaction ratings, like this model year's 4.77/5, tend to retain buyer demand, which supports resale value over time.

Is the 2021 Mazda CX-30 safe?

The 2021 Mazda CX-30 earns a Top Safety Pick+ rating from the Insurance Institute for Highway Safety and five-star ratings in every NHTSA assessment except rollover resistance, where it receives a four-star rating.

It earns a 9/10 safety score from our experts.

Mazda equips every CX-30 Turbo with i-ActiveSense advanced driver-assistance systems, and the suite is described as effective rather than irritating. Standard equipment includes the usual active safety features, while Premium Plus adds front and rear parking sensors, rear automatic braking, a surround-view camera system, and Traffic Jam Assist.

One caveat is that there is no high-speed lane-centering assistance function, and the rollover result is lower than the other NHTSA ratings.

Should I buy a 2021 Mazda CX-30 or consider a different year?

If you're weighing the 2021 against nearby model years, here's how to think about it:

Choose the 2021 if:

• 33.2% of listings are priced as good or great deals.
• Accident-free inventory is solid at 77.2% — always verify the vehicle history report.
• Price trend: Prices have softened 2.59% compared with last year.
• Owners rate it 4.77/5 — a strong satisfaction signal.
• It blends premium design, strong safety, and effortless turbocharged acceleration.

Consider the 2020 if:

• At $18,780, the 2020 costs less than the current year's $19,832 average.
• It offers extra ground clearance and easier entry and exit.

Consider the 2022 if:

• At $22,408, the 2022 costs more than the current year's $19,832 average.
• It brings a more upscale cabin and a more refined ride.

The bottom line: You should start with the 2021 if you want the best mix of price, safety, and premium feel. If your budget is tighter, the 2020 is the value play, while the 2022 makes sense if you want the newer-year polish and are willing to pay more.

These recommendations are based on CarGurus' proprietary market data from September 11, 2026, CarGurus experts' opinions, and generative AI.