Cheapest Car Insurance in Boston, MA (2026)

• Cheapest Full Coverage: Plymouth Rock $77/month
• Cheapest Minimum Coverage: Plymouth Rock $25/month
• Cheapest for Teens & Young Adult Drivers (16-25): Plymouth Rock $143/month
• Cheapest for Drivers With a DUI: Plymouth Rock $44/month
• Cheapest for Drivers with an At-Fault Accident: Plymouth Rock $42/month
• Cheapest for Drivers with a Speeding Ticket: Plymouth Rock $38/month

Plymouth Rock is cheapest for both coverage levels in Boston at $25 a month for minimum coverage and $77 for full, 38% below the city average. GEICO is second at $37 for minimum and $80 for full.

The $3 full coverage gap between Plymouth Rock and GEICO matters less than accident forgiveness, which Plymouth Rock includes in Massachusetts and GEICO does not. A first at-fault accident with Plymouth Rock does not raise the rate. Boston drivers average a collision every 3.76 years. That protection is worth more in this city than almost anywhere else.

At $39 for minimum and $113 for full, Safety Insurance is the third-cheapest minimum option in the table but the most expensive for full coverage, a fit for minimum-only buyers and the wrong choice for drivers who need both.

• Teens & Young Adults: State Farm at $251/month
• Adult drivers: GEICO at $136/month
• Senior drivers: GEICO at $145/month

Plymouth Rock is cheapest for teens and young drivers ages 16 to 25 in Boston at $143 a month ($1,715 annually) for full coverage. GEICO is second at $173 ($2,071 annually), a $30 monthly difference.

For families currently with GEICO, switching to Plymouth Rock saves $360 a year. Plymouth Rock also carries accident forgiveness, which matters more for teen drivers than adults. Teens file more claims, and in Boston's collision environment, first-accident protection carries real weight. For families starting fresh, Plymouth Rock is the right first quote at both the cheapest price and the highest MoneyGeek score of any company in the table.

GEICO is cheapest car insurance for seniors in Boston at $77 a month ($928 annually) for full coverage. Norfolk & Dedham Insurance is second at $80 ($966 annually), a $3 monthly difference.

Norfolk & Dedham Insurance is a Massachusetts-only company that has operated in the state since 1825. Its agents handle claims locally rather than through a national service center. GEICO processes claims through a centralized digital system. For seniors who prefer working with a local agent, Norfolk & Dedham Insurance is the stronger fit at minimal extra cost.

GEICO's DriveEasy telematics program can lower the $77 rate for safe drivers at renewal. Norfolk & Dedham Insurance does not offer a telematics program. Seniors looking to reduce the rate further should ask GEICO about DriveEasy.

Plymouth Rock is cheapest for every violation type in Boston, at $38 a month after a speeding ticket, $42 after an at-fault accident and $44 after a DUI, all for minimum coverage. This is a Boston-specific finding. At the state level, GEICO leads for speeding and Arbella for at-fault accidents. In Boston, Plymouth Rock leads all three.

Massachusetts controls the surcharge timeline through the Safe Driver Insurance Plan, capping rate increases at six years for both at-fault accidents and DUIs. After six years, the rate returns to the clean-record baseline regardless of which insurer the driver is with. Get new quotes once that window closes, since the rate does not reset automatically.

Under Melanie's Law, a DUI conviction in Massachusetts never expires on the official Registry of Motor Vehicles record. The insurance surcharge still clears at six years, but the conviction remains on the RMV record permanently.

Massachusetts does not require SR-22 filing after a DUI, a step most other states impose after a conviction. Boston drivers with a DUI skip this filing entirely.

Plymouth Rock's DUI surcharge is the largest of the three, raising minimum coverage 76%, from $25 to $44 a month. An at-fault accident draws a 68% increase to $42. A speeding ticket draws the lightest penalty at 52%, from $25 to $38.

After any violation in Boston, the gap between the cheapest and most expensive company widens. On a clean record, Plymouth Rock ($25) and Amica ($44) are $19 apart. After a DUI, Plymouth Rock ($44) and Amica ($100) are $56 apart, or $672 a year. In a city where violations are more likely than almost anywhere else in the US, that $672 difference justifies comparing quotes after any incident.

Plymouth Rock's accident forgiveness means a first at-fault incident does not trigger the 68% surcharge at all, keeping the rate at $25. In a city where drivers average a collision every 3.76 years, that protection has more value here than almost anywhere else in the country.

Boston drivers pay $113 a month for full coverage and $50 for minimum. Massachusetts's statewide average is $91 for full and $40 for minimum, putting Boston $22 above the state average for full coverage and $10 above for minimum.

The $22 gap between Boston and Massachusetts for full coverage is small for the country's most collision-prone city. Boston's accident risk is distributed city-wide rather than concentrated in specific neighborhoods, keeping ZIP variation to just $24 for full coverage. Plymouth Rock's $77 rate is $36 below the city average. In Boston, the company you choose determines your rate more than your address does.

Boston's rates increased about 40% from 2023 to 2025. Vehicle repair inflation, rising PIP medical payouts and the city's persistently high collision frequency all pushed premiums higher.

Boston's minimum coverage rates run from $49 a month in most ZIP codes to $59 in ZIP code 02128. Full coverage ranges from $110 in most ZIP codes to $134 in 02128, a $24 difference.

Fifteen of the 18 ZIP codes in the table pay $49 a month for minimum coverage and $110 for full. ZIP 02127 steps up to $55 for minimum and $125 for full. ZIP 02128, in East Boston near Logan Airport, is the city's most expensive at $59 for minimum and $134 for full.

Boston's $24 full coverage ZIP range reflects how evenly its collision risk is distributed. Plymouth Rock over Safety Insurance saves $36 a month regardless of ZIP. Moving from the city's most expensive ZIP to the cheapest saves $24. Your company choice saves more than your address does.

The gap between Boston's cheapest and most expensive full coverage insurer is $36 a month. Matching coverage to your car's value saves another $52. Massachusetts's Safe Driver Insurance Plan also gives every Boston driver with a violation a fixed six-year timeline to recover clean-record rates, regardless of insurer.

We collected car insurance rates for both minimum and full coverage across all 18 of Boston's ZIP codes, using a baseline adult driver with a clean record. The five companies in this analysis (Plymouth Rock Insurance, GEICO, Safety Insurance, Norfolk & Dedham Insurance and Amica) represent the most affordable carriers operating in Boston. For violation and age profiles, we expanded the analysis to include Arbella, Farmers and Progressive to show the full rate range.

The Safe Driver Insurance Plan caps rate increases at six years for both at-fault accidents and DUIs in Massachusetts. No SR-22 filing is required after a DUI. The state also bans the use of credit scores for auto insurance pricing and bans gender as a rating factor.

Every Massachusetts auto policy includes $8,000 in compulsory Personal Injury Protection, effective for policies written or renewing on or after July 1, 2025. Massachusetts is a no-fault state with a tort threshold of $2,000 in medical expenses. USAA is excluded from our analysis because its policies are available only to military members and their families. Read more on MoneyGeek's auto insurance analysis methodology.