The safest spot for a car seat is the rear center seat. Children seated in the center of the back seat have a 43% lower risk of injury compared to those in either of the side (outboard) positions, according to research published in the Annals of Advances in Automotive Medicine. That said, the safest spot is always the one where the car seat can be installed correctly and securely, which sometimes means a side position is the better practical choice.
Why the Center Seat Is Safest
The center rear seat puts the most distance between your child and the two most common types of serious crashes: side impacts and front-corner collisions. In a side-impact crash, a child seated behind the driver or passenger door is closest to the point of impact, with very little space separating them from intruding metal and glass. The center seat acts as a buffer zone, giving your child extra space on both sides.
It also keeps children farther from side windows and side curtain airbags, which can pose risks for small bodies. Front collisions account for the other major crash type, and the center position avoids the direct line of force that channels through the vehicle’s front corners.
When the Center Seat Won’t Work
The center rear seat is the ideal choice on paper, but real cars don’t always cooperate. Many vehicles lack LATCH anchors (the built-in clips that snap a car seat into place) at the center position. If your car doesn’t have center LATCH anchors, you have two options: install the seat using the seat belt instead, or place the car seat in one of the outboard positions where LATCH is available.
A seat belt installation is perfectly safe when done correctly. Thread the belt through the car seat’s belt path, buckle it, and pull it tight enough that the base moves less than one inch side to side or front to back. If you’re not confident in a seat belt install, using LATCH in an outboard position is a better choice than a loose center installation. A tightly secured car seat in a side position beats a wobbly one in the center every time.
Some vehicles also have a narrow or raised center seat, a hump from the transmission tunnel, or seat contours that prevent the car seat base from sitting flat and stable. Your vehicle owner’s manual will tell you which seating positions are approved for car seat installation.
Why the Front Seat Is Never an Option
Children under 13 should always ride in the back seat. Front passenger airbags deploy at high speed and with enough force to seriously injure or kill a small child, even in a moderate collision. This is especially dangerous for rear-facing car seats: the airbag would slam directly into the back of the seat, driving it into the child’s head.
Even vehicles with newer “advanced” airbags that adjust deployment force based on occupant size don’t eliminate this risk. NHTSA is clear on this point: placing a child in the front seat, regardless of the airbag technology, comes with increased risk. No exceptions.
Arranging Multiple Car Seats
When you have two children, the center seat is still the priority spot, and the youngest child should get it. A rear-facing car seat protects an infant’s fragile neck and spinal cord by cradling and moving with the child during a crash. Giving that youngest passenger the center position pairs the most protective seat type with the safest location in the vehicle.
If you’re fitting three car seats across the back row, the reality is that most vehicles can barely accommodate this. Focus on getting all three seats installed tightly with no more than one inch of movement at the base. You may need to mix LATCH and seat belt installations, and narrower car seat models can help. If one seat has to go in a less-than-ideal spot, prioritize the youngest and smallest child for the center.
Car Seat Type by Age
Position in the vehicle is only half the equation. The type of seat matters just as much.
- Birth to at least 12 months: Rear-facing car seat. Keep your child rear-facing as long as possible, ideally until they reach the maximum height or weight limit printed on the seat’s label. Many convertible seats allow rear-facing use well past age 2.
- After outgrowing the rear-facing limit: Forward-facing car seat with a harness and top tether. The tether strap anchors to a hook behind the back seat and keeps the top of the car seat from pitching forward in a crash. This is commonly used from around age 2 to 5 or older, depending on the seat’s limits.
- After outgrowing the forward-facing harness: Booster seat. A booster lifts your child so the vehicle’s seat belt crosses the chest and hips properly instead of riding up on the neck or stomach. Most children need a booster until age 8 to 12, depending on their size.
- Once the seat belt fits without a booster: The lap belt should sit low across the upper thighs (not the stomach), and the shoulder belt should cross the middle of the chest and shoulder (not the neck). Children should remain in the back seat through at least age 12.
How to Confirm a Secure Installation
About half of all car seats are installed incorrectly, and a misinstalled seat in the “best” position offers far less protection than a correctly installed seat anywhere in the back row. After installing the seat, grab the base near the belt path and try to move it. It should not shift more than one inch in any direction. For forward-facing seats, always attach the top tether strap; it reduces forward head movement by several inches during a crash.
If you’re unsure whether your installation is right, certified car seat technicians offer free inspections at fire stations, hospitals, and police departments across the country. You can find a local inspection station through NHTSA’s website. It takes about 20 minutes, and they’ll show you exactly how to get a tight, correct fit for your specific car and seat combination.