Poplar › fit in › Toyota Highlander

Will the Britax Poplar fit in a 2020–2024 Toyota Highlander?

Yes — the Britax Poplar fits a 2020–2024 Toyota Highlander.
The Poplar is about 18.5" wide; the Highlander's usable rear bench is about 52". It fits one rear position comfortably. Three across is tight (55.5" needed vs 52").

18.5"Poplar width

52"Highlander rear bench

Tightthree across

★★★★☆NHTSA Ease-of-Use

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What fits this Highlander

One seat, rear position: Yes. The Poplar installs in an outboard rear position of a 2020–2024 Toyota Highlander with room to spare.
Three across: Tight — three need ~55.5" against only ~52". A narrower seat is the better bet.
Modes this seat covers: rear-facing → forward-facing.
LATCH: lower anchors up to 40 lb; the Highlander has 2 lower-anchor positions.

ℹ️ Informational only — built from NHTSA public car-seat ratings and published seat/vehicle dimensions. This is not a safety certification and not a substitute for the seat and vehicle manuals. Always confirm the fit and install yourself before every trip. The Poplar's width (Britax published spec) and the Highlander's rear-bench width (Toyota dimensions + owner measurements (approx)) are both approximate — confirm with a test-fit before buying.

Common questions

Will the Britax Poplar fit in a 2020–2024 Toyota Highlander?

Yes — the Britax Poplar (18.5" wide) fits a single rear seating position in a 2020–2024 Toyota Highlander. Three across is tight — its rear bench is about 52" and three of these would need 55.5".

Can you fit three Poplars across a Highlander?

Probably not — three Poplars need about 55.5" but the Highlander's usable bench is only about 52". Consider a narrower seat — see our narrowest-seats guide.

Sources: seat ratings & modes — NHTSA (pulled 2026-06-17); dimensions — manufacturer specs and owner measurements. Informational only — built from NHTSA public car-seat ratings and published seat/vehicle dimensions. This is not a safety certification and not a substitute for the seat and vehicle manuals. Always confirm the fit and install yourself before every trip.