2021 Mazda CX-30 prices

There are 109 used 2021 Mazda CX-30 cars for sale from UK dealers on AskCar, as of 7 November 2026. Typical asking price £13,900 (the median: half cost less, half cost more). The cheapest is £9,700. The middle half are priced between £12,800 and £15,200. Median mileage: about 35,000 miles.

Dealers lowered the asking price on more than a third of 2021 Mazda CX-30 cars: 39 of the 109 in the 14 days to 7 November 2026.

2021 Mazda CX-30 prices by engine and mileage

A 2021 Mazda CX-30 2.0 petrol car with 20,000 to 40,000 miles typically costs £14,500, against £13,100 with 40,000 to 60,000 miles.

EngineAll mileagesUnder 20,000 miles20,000 to 40,000 miles40,000 to 60,000 miles60,000 miles or more
2.0 petrol£13,900Too few for sale£14,500£13,100Too few for sale

2021 Mazda CX-30 prices by trim

TrimTypical asking price, 2021 cars
GT Sport£14,400
Sport LUX£14,000
SE L LUX£12,800
GT Sport Tech£14,500
SE LToo few for sale

Only 5 of the 2021 Mazda CX-30 cars for sale are SE L, too few to give a typical asking price.

Typical asking prices are of 2021 Mazda CX-30 cars for sale on 7 November 2026, and are given only where at least 20 cars with a price are for sale.

2021 Mazda CX-30 against other years

A 2020 Mazda CX-30 car has a typical asking price of £13,000 and a 2022 one £15,000, as of 7 November 2026.

AskCar lists 1,589 used Mazda CX-30 across the UK, from 529 dealerships.

As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2021 Mazda CX-30 cars for sale now, page 1 of 3

This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage, recently reduced and newly advertised. A car in more than one group is listed in full once. The groups pick only from cars with photos and an AskCar estimate, priced at £500 or more and no more than 25% under that estimate. 100 of the 105 cars listed here meet these rules. Pages 2 to 3 list every other 2021 Mazda CX-30 car, cheapest first, including the 5 the groups do not pick from.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 1,536 priced Mazda CX-30 adverts on AskCar as of 7 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2021 Mazda CX-30.

Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer and town; AskCar page. Each car's AskCar page has its full price history and cheaper cars like it.

This list leaves out 4 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

Best value 2021 Mazda CX-30: priced furthest below the AskCar estimate

These 10 are priced 5% to 10% under their AskCar estimate. Their asking prices run from £11,200 to £15,799.

Cheapest 2021 Mazda CX-30: the lowest asking prices

These 10 are priced £9,990 to £11,592. They have covered 46,560 to 82,573 miles.

Lowest-mileage 2021 Mazda CX-30

These 10 have covered 11,051 to 18,640 miles. Their asking prices run from £14,699 to £17,995.

Recently reduced 2021 Mazda CX-30: the biggest price reductions in the 14 days to 7 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 7 November 2026. Their reductions since AskCar first saw them run from £1,030 to £2,200.

Newly advertised 2021 Mazda CX-30: first seen by AskCar in the 7 days to 7 November 2026

These 10 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

Mazda CX-30 by gearbox, fuel and body

Mazda CX-30 prices by year

Mazda CX-30 by trim

2021 Mazda CX-30 by price

2021 Mazda CX-30 by trim

Mazda CX-30 by price

Mazda CX-30 near you

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