Belmont’s median household income sits near $177,790 a year, almost double the national figure, and its median home value tops $1.1 million. By most measures that makes it one of the more affluent towns inside Route 128.

None of that shows up as a discount on a Belmont car insurance bill. Massachusetts law makes sure of it.

A State Where Income Doesn’t Set the Price

Since 2011, Massachusetts has banned insurers from using credit-based insurance scores to underwrite or price private passenger auto policies — only California and Hawaii do the same. For Belmont specifically, that means a household income nearly twice the national average has no direct line into the rate calculation. A driver’s record, vehicle, and ZIP code carry the weight instead.

The result is a town where quote aggregators put the average policy at roughly $1,300 to $1,400 a year — close to the Massachusetts statewide average, not meaningfully below it, despite the income gap.

Massachusetts requires 25/50/30 liability — $25,000 bodily injury per person, $50,000 per accident, $30,000 property damage — plus mandatory $8,000 Personal Injury Protection and 25/50 uninsured/underinsured motorist coverage. Those minimums apply in Belmont exactly as they do statewide. See our Massachusetts car insurance guide for how the no-fault system works.

One ZIP Code, Pricier Cars

Belmont’s roughly 27,400 residents all share a single ZIP code, 02478, so the geographic rating factor doesn’t shift whether a car sits in a driveway near Belmont Center or out toward Waltham. What does shift, household to household, is the vehicle itself.

With more than 82% of adults holding a bachelor’s degree or higher and home values above $1.1 million, Belmont driveways tend to hold newer, costlier vehicles than the Massachusetts norm — and a pricier car raises the comprehensive and collision slice of a full-coverage quote even when the liability minimums stay fixed statewide.

McLean Hospital and the Local Traffic Picture

McLean Hospital, the Harvard-affiliated psychiatric hospital on Mill Street, is one of Belmont’s largest employers and landmarks. It doesn’t rate anyone’s policy directly, but the steady flow of staff shifts, visitors, and ambulance traffic through residential streets like Concord Avenue and Pleasant Street adds to the everyday congestion that feeds into town-level claims data over time.

Add in Belmont Hill School and the rest of the town’s private-school traffic during drop-off and pickup windows, and the picture is less about a single dangerous road and more about steady, low-speed friction on streets that were laid out generations before the current volume of cars.

The Takeaway

Belmont’s high income and home values don’t translate into a lower car insurance bill, because Massachusetts law keeps credit and income out of the pricing formula. What does matter is making sure liability sits at or above the 25/50/30 floor and that comprehensive and collision limits actually match what a newer Belmont vehicle would cost to replace. Our minimum vs. full coverage guide breaks down what that extra coverage buys.