Used 2021 Mazda MAZDA3 for Sale nearDenver, CO

How much does the 2021 Mazda MAZDA3 cost?

Prices are up 1.55% year-over-year — a sign of continued demand for this model year.

There are 531 listings available, which gives you a modest amount of inventory to compare.

Is the 2021 Mazda MAZDA3 a good car?

Yes — owners give it 5/5, and our experts rate it 8.33/10. The model scores 10/10 across Look and feel, Cost effectiveness, and Safety.

Owners consistently praise its sporty design, high-quality interior, and fun driving experience, and they also like its stylish appearance and fuel efficiency. In use, that lines up with the car’s polished, premium-leaning personality and its appeal to buyers who want something enjoyable without giving up refinement.

The trade-offs are clear: the manual transmission is not available in this version, visibility is poor, and the technology is outdated. Even so, the overall package fits you well if you want a compact car that emphasizes style, quality, and driving enjoyment more than flash or outright aggression.

Only 33.5% of listings are priced as good or great deals, so the market is somewhat selective rather than broadly discounted.

Is the 2021 Mazda MAZDA3 reliable?

Owners rate it 5/5, a strong signal of long-term satisfaction. The owner feedback also points to a car that feels dependable and trouble-free enough to inspire confidence over time, especially if you value a vehicle you can count on for everyday use.

The expert drive notes reinforce that impression by describing the car as smooth, predictable, and consistent, with behavior that’s easy to learn and trust. Mazda also positions the powertrain and chassis tuning as refined rather than frantic, which supports the sense that the car is built to be lived with.

For used buyers, the main long-term risk is less about outright mechanical drama and more about whether the car has been maintained well enough to preserve its premium feel and electronics performance.

What should I look for when buying a used 2021 Mazda MAZDA3?

At 73.1% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report and then prioritize a careful inspection of bodywork, paint consistency, and any signs of prior repair. Because the car’s appeal depends so much on refinement, you’ll also want to focus on cabin condition, electronics behavior, and whether the interior still feels as upscale as it should.

Key things to evaluate:

• Trim level: Standard versions use black or greige leatherette, while Premium Plus upgrades to Nappa leather and adds a more upscale cabin presentation. The Premium Plus trim also brings a high-definition surround-view camera, front and rear parking sensors, low-speed reverse automatic braking, and Traffic Jam Assist, so base trims miss some of the most useful convenience and safety upgrades.
• Powertrain: The turbocharged 2.5-liter four-cylinder makes 250 horsepower and 320 pound-feet of torque on 93-octane fuel, or 227 hp and 310 lb-ft on 87-octane fuel. It uses a six-speed automatic with Sport and Manual modes, and Mazda pairs it with i-Activ AWD.
• Safety package: Mazda’s i-ActiveSense suite includes adaptive cruise control with stop-and-go capability and automatic high-beam LED headlights with Adaptive Front Lighting System. Premium Plus adds the surround-view camera, parking sensors, low-speed reverse automatic braking, and Traffic Jam Assist.
• Infotainment: Mazda Connect uses an 8.8-inch display with Apple CarPlay, Android Auto, and a three-year trial of Mazda Connected Services. It is not touch-sensitive, and the system also includes a WiFi hotspot and a MyMazda app for remote functions.
• Fuel efficiency: The test drive returned 20.4 mpg, while Mazda cites 27 mpg in combined driving; the review suggests you may see about 24 mpg in real-world use.

Which 2021 Mazda MAZDA3 trim should I buy?

The 2021 Mazda MAZDA3 is offered in 2 trim levels: standard and Premium Plus.

Here's the short version:

• standard: This is the value-oriented choice if you want the Mazda3 Turbo’s core appeal — strong power, AWD, upscale design, and the same smooth, predictable driving character — without paying for the extra convenience and safety hardware. It still gives you the premium-feeling cabin and the turbocharged performance that define the car.
• Premium Plus: This is the best-value trim if you want the most complete version of the car. It adds the high-definition surround-view camera, front and rear parking sensors, low-speed reverse automatic braking, Traffic Jam Assist, and Nappa leather, making it the better pick if you want the most luxury and the most useful tech in one package.

The Premium Plus trim is the one that gets the extra safety and convenience features, so it’s the trim to target if those matter most to you.

Is now a good time to buy a used 2021 Mazda MAZDA3?

This looks like a moderate, selective buyer’s market, so you should shop carefully and compare condition closely.

• Deal availability: 33.5% of listings are priced as good or great deals.
• Inventory: There are 531 listings available.
• Price trend: Prices are up 1.55% year-over-year.
• Clean inventory: 73.1% of listings are accident-free.

If you find a listing below $18,453, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 Mazda MAZDA3's resale value?

The current average of $19,830 sits slightly above last year's $19,527.

That upward move suggests the car has held demand well, which is a positive sign if you plan to sell later. A model that stays near the top of its recent range usually has enough buyer interest to support a healthier resale position.

For you, that means a well-kept example should remain relatively easy to market, especially if it has the desirable trim and clean history. The combination of strong demand and a premium-feeling reputation helps keep depreciation from feeling as steep as it might on a more ordinary compact car.

Vehicles with strong owner satisfaction ratings, like this model year's 5/5, tend to retain buyer demand, which supports resale value over time.

Is the 2021 Mazda MAZDA3 safe?

The 2021 Mazda MAZDA3 earns top five-star ratings in every NHTSA assessment, including rollover resistance, and it had previously carried an IIHS Top Safety Pick+ rating.

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

Mazda’s i-ActiveSense suite is designed to support the driver rather than replace them, and it includes adaptive cruise control with stop-and-go capability, automatic high-beam LED headlights, and Adaptive Front Lighting System functionality. On Premium Plus, you also get a high-definition surround-view camera, front and rear parking sensors, low-speed reverse automatic braking, and Traffic Jam Assist.

The main caveat is that Traffic Jam Assist is not a Level 2 system, so you remain responsible for steering at all times. Even so, the overall safety package is strong, and the car’s crash-test performance is a major strength.

Should I buy a 2021 Mazda MAZDA3 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:

• 33.5% of listings are priced as good or great deals.
• At 73.1% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices are up 1.55% year-over-year.
• Owners rate it 5/5 — a strong satisfaction signal.
• The turbocharged setup delivers smooth, predictable performance with a premium-feeling driving character.

Consider the 2020 if:

• At $18,016, the 2020 costs less than the current year's $19,830 average.
• It emphasizes premium styling, easy-to-use technology, and standard advanced safety features.

Consider the 2022 if:

• At $21,284, the 2022 costs more than the current year's $19,830 average.
• It adds special-edition styling and updated equipment, including a Carbon Edition and a standard wiper de-icer on Turbo models.

The bottom line: you should focus on the 2021 if you want the strongest blend of performance, safety, and premium feel in this price band. If you’re more price-sensitive, the 2020 is the better value play, while the 2022 makes sense if you want the newer-year updates and are willing to pay more.

These recommendations are based on CarGurus' proprietary market data from September 22, 2026, CarGurus experts' opinions, and generative AI.