Mazda CX-3 MPG by Year & Engine (EPA)

EPA fuel-economy ratings for every rated Mazda CX-3 model year from 2016 to 2021 — each engine and transmission with its official city, highway and combined figures. Over these years the CX-3 has been offered with 2.0L 4-cyl engines; every rated year lands at 31 MPG combined. All rated gas versions run on regular gasoline. Data: U.S. Department of Energy & EPA, fueleconomy.gov; prices are live medians from VehiSales listings.

Mazda CX-3 fuel economy by year

YearCombinedEnginesMedian used priceFor sale
2021 29–31 MPG 2.0L 4-cyl $15,798 26 listings
2020 29–31 MPG 2.0L 4-cyl $16,749 26 listings
2019 29–31 MPG 2.0L 4-cyl $15,947 123 listings
2018 29–31 MPG 2.0L 4-cyl $13,500 10 listings
2017 29–31 MPG 2.0L 4-cyl $14,933 42 listings
2016 29–31 MPG 2.0L 4-cyl $12,998 23 listings

2021 Mazda CX-3: engines & MPG

The 2021 CX-3 was EPA-rated in 2 versions (2.0L 4-cyl), with combined economy from 29 to 31 MPG. Used 2021 models currently list for a median of $15,798 on VehiSales (26 for sale).

VersionEngineTransmissionFuelCityHwyCombined
CX-3 2WD 2.0L 4-cyl Automatic (S6) Regular 29 34 31 MPG
CX-3 4WD 2.0L 4-cyl Automatic (S6) Regular 27 32 29 MPG

2020 Mazda CX-3: engines & MPG

The 2020 CX-3 was EPA-rated in 2 versions (2.0L 4-cyl), with combined economy from 29 to 31 MPG. Used 2020 models currently list for a median of $16,749 on VehiSales (26 for sale).

VersionEngineTransmissionFuelCityHwyCombined
CX-3 2WD 2.0L 4-cyl Automatic (S6) Regular 29 34 31 MPG
CX-3 4WD 2.0L 4-cyl Automatic (S6) Regular 27 32 29 MPG

2019 Mazda CX-3: engines & MPG

The 2019 CX-3 was EPA-rated in 2 versions (2.0L 4-cyl), with combined economy from 29 to 31 MPG. Used 2019 models currently list for a median of $15,947 on VehiSales (123 for sale).

VersionEngineTransmissionFuelCityHwyCombined
CX-3 2WD 2.0L 4-cyl Automatic (S6) Regular 29 34 31 MPG
CX-3 4WD 2.0L 4-cyl Automatic (S6) Regular 27 32 29 MPG

2018 Mazda CX-3: engines & MPG

The 2018 CX-3 was EPA-rated in 2 versions (2.0L 4-cyl), with combined economy from 29 to 31 MPG. Used 2018 models currently list for a median of $13,500 on VehiSales (10 for sale).

VersionEngineTransmissionFuelCityHwyCombined
CX-3 2WD 2.0L 4-cyl Automatic (S6) Regular 29 34 31 MPG
CX-3 4WD 2.0L 4-cyl Automatic (S6) Regular 27 32 29 MPG

2017 Mazda CX-3: engines & MPG

The 2017 CX-3 was EPA-rated in 2 versions (2.0L 4-cyl), with combined economy from 29 to 31 MPG. Used 2017 models currently list for a median of $14,933 on VehiSales (42 for sale).

VersionEngineTransmissionFuelCityHwyCombined
CX-3 2WD 2.0L 4-cyl Automatic (S6) Regular 29 34 31 MPG
CX-3 4WD 2.0L 4-cyl Automatic (S6) Regular 27 32 29 MPG

2016 Mazda CX-3: engines & MPG

The 2016 CX-3 was EPA-rated in 2 versions (2.0L 4-cyl), with combined economy from 29 to 31 MPG. Used 2016 models currently list for a median of $12,998 on VehiSales (23 for sale).

VersionEngineTransmissionFuelCityHwyCombined
CX-3 2WD 2.0L 4-cyl Automatic (S6) Regular 29 35 31 MPG
CX-3 4WD 2.0L 4-cyl Automatic (S6) Regular 27 32 29 MPG

Frequently asked questions

What MPG does a Mazda CX-3 get?

Every rated CX-3 year comes in at 31 MPG combined.

What engines does the 2021 Mazda CX-3 have?

The 2021 CX-3 was EPA-rated with 2.0L 4-cyl engines — see the 2021 table above for each version's exact city/highway figures.

Does the Mazda CX-3 require premium gas?

No — rated versions run on regular gasoline.

About this data: EPA ratings from the official U.S. DOE/EPA dataset (fueleconomy.gov), as of July 2026; refreshed monthly. Market prices and listing counts are live medians from VehiSales inventory, updated daily. How to cite: “VehiSales Research, Mazda CX-3 EPA Fuel Economy by Model Year” with a link to https://vehisales.com/research/fuel-economy/mazda/cx-3.

See also: Mazda CX-3 hub — live listings, prices & reliability · Used Mazda CX-3 prices by year · Most fuel-efficient cars by segment · Model price trends. Media inquiries: [email protected].

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