Most third rows in this class are a technicality. This one is not, but it is still worth knowing exactly what you are getting before you buy a car around it.
Who Actually Fits Back There?
The useful answer is not a number. It is who, and for how long.
No issue at all, on any length of trip. This is what row three is for and the CX-90 does it well.
Fine, including on longer drives. Worth having yours sit in it, since a tall fifteen-year-old and a short one have very different opinions.
Comfortable enough. A run across Goldsboro or out to dinner in Kinston is a non-event.
They will notice. Two hours down US-70 to the coast is doable but it is not where you would put the tallest person in the car.

Because the number would not answer your question. Third-row comfort depends on where the second row is set, and the second row slides. A published inch count assumes a position nobody actually uses. Sit in it with the second row where your family would really have it, and you will know more in thirty seconds than any specification could tell you.
Getting In and Out
Access matters more than space for most families, because you do it several times a day and the space you only notice on a long drive.
With captain's chairs
There is a walk-through gap between the two second-row seats, so a child can get to the back without anybody folding anything. This is the easiest access of any configuration and it is the reason a lot of parents choose captain's chairs even when they would like the eighth seat. On a wet morning in a school car park it earns its keep.
With the second-row bench
The bench slides and tilts forward to open a path. It works perfectly well, it is just slower, and it is noticeably more annoying when the person doing it is holding a bag, a coffee and a toddler's hand. If you are choosing the bench for the eighth seat, this is the trade you are making.

You can fit one back there, and it is more awkward than row two, both to install and to get a child in and out of afterwards. Most families run car seats in the second row and use the third for older children. Whether a specific seat fits depends on the seat. Bring yours and try it in the car rather than measuring at home.
If seat count rather than seat comfort is your question, our page on how many the CX-90 seats covers which trims give you seven and which give you eight.
The One Difference Between the Gas CX-90 and the PHEV
Three seats back there, or two
The gasoline Inline-6 CX-90 has a three-person third row. The plug-in hybrid has a two-person third row.
Both are sold as seven-seaters, so it is easy to compare them on a spec sheet and never notice. The gas car gets to seven with second-row captain's chairs plus three in the back. The PHEV gets to seven with a second-row bench plus two in the back.
If your third row usually carries one or two children, this changes nothing for you. If it regularly carries three, it decides your powertrain. Worth establishing early, before you fall for a specific car.

Cargo Space Behind the Third Row
The number people should ask about and usually do not until the boot is full.
What that means in practice
- All three rows up: a full grocery run, or several soft bags. Not a family of seven's hard luggage for a week away.
- Third row folded: a large, level load floor. This is how most owners drive most of the time.
- Both rows folded: about 74.2 cu ft, which handles flat-pack furniture, bicycles and most trips to a garden centre.
- Full house plus luggage: plan on a roof box or a trailer for a long trip with eight aboard. That is true of every SUV in this class, not a CX-90 shortcoming.

If You Wrote Off the CX-9's Third Row, Look Again
A fair number of people arrive here having owned a CX-9 and concluded that a Mazda third row is an occasional-use thing. That was a reasonable conclusion about that car.
The CX-90 is a larger vehicle on a newer platform, and row three benefited from it. It is roomier back there in a way you can feel rather than one you have to be told about. If your last three-row Mazda put you off, spend two minutes in this one before carrying the assumption forward.
The same goes the other way. If you are cross-shopping against other three-row SUVs, sit in all of their third rows on the same afternoon. They vary far more than the brochures suggest, and it is the only comparison that will tell you anything useful.
Back to topCX-90 Third Row Questions
How many people fit in the Mazda CX-90 third row?
Is the CX-90 third row big enough for adults?
How do you get into the CX-90 third row?
Can you fit a car seat in the CX-90 third row?
How much cargo space is behind the CX-90 third row?
Does the CX-90 third row fold flat?
Is the CX-90 third row better than the CX-9 it replaced?
Can I try the third row before I buy?
Bring the People Who Will Sit in It
A third row is the one part of a car you genuinely cannot evaluate from a screen. Bring the children, bring the car seats, and let everyone climb in.
Sport Durst Mazda of Goldsboro
3405 McLain Street, Goldsboro, NC 27534
www.sportdurstmazdaofgoldsboro.com
Serving Goldsboro, Wayne County, Kinston, Wilson and Smithfield.
Sales: (919) 823-7198
What Wayne County Families Say
Two Minutes in Row Three Settles It
Call ahead and we will have a CX-90 ready for everyone to climb into.
Sources. Seating configurations from Mazda USA's CX-90 trim comparison, verified August 11, 2026. Cargo volumes from Mazda published specifications and Kelley Blue Book. Third-row comfort varies with second-row position and with the individual. Seating configuration is set per vehicle at build. Whether specific child seats fit depends on the seats themselves. Equipment and specifications are subject to change by the manufacturer. Contact Sport Durst Mazda of Goldsboro at (919) 823-7198 to confirm the configuration of any specific vehicle.