Average Cost of Car Insurance in Connecticut: Why Quotes Range So Widely and What Drives Yours

Connecticut's 2023 combined average premium for personal auto insurance was $1,508.21 per year, and its 2023 average expenditure was approximately $1,393.90 per year, according to the NAIC 2022/2023 Auto Insurance Database Report (opens in a new tab). The combined average premium adds together separate averages for liability, collision and comprehensive coverage. Average expenditure divides the total written premium for all included coverages by liability exposures. Both measures come from written premiums and exposures across the state, so neither is a personal quote. Coverage, drivers, vehicles, location, claims history, credit-history rules and each insurer's filed rates all move an individual price away from these numbers.

What is the average cost of car insurance in Connecticut?

Every figure in this article is a yearly amount unless it says otherwise. For a monthly view, the $1,508.21 combined average premium works out to about $125.68 a month, but that is arithmetic on a statewide measure, not a price a driver will be offered.

The two measures are built differently, so they are reported separately. The combined average premium stacks three averages that each use their own exposure base. Average expenditure spreads the total premium for every included coverage across liability exposures. The figures cover combined voluntary and residual market business and reflect written premium and written exposure data rather than quotes for a standard driver.

For neighboring states, the same report lists 2023 combined average premiums of $1,413.49 in Massachusetts and $1,895.99 in New York. Connecticut's $1,508.21 sits between the two. Each is a statewide aggregate, so the gap says little about what one driver would pay on either side of a border.

Why do published Connecticut averages differ?

Two websites can publish different Connecticut averages and both be accurate for what they measured. One may use 2023 data and another a later year. One may report average expenditure while another reports combined average premium. Some figures blend voluntary and residual markets, and others use quotes built for a sample driver with a chosen age, record, vehicle and coverage level. The NAIC also adjusts historical figures when later data arrives.

Figures from different sources should be compared only when the year, coverage, population and calculation match. A minimum-liability average cannot be blended with a broader-coverage average, because they describe different policies.

What does the average include?

The NAIC combined average premium covers three parts: liability, collision and comprehensive. Liability pays for injury and damage you cause to others. Collision pays for damage to your own vehicle from a crash. Comprehensive pays for damage to your vehicle from things other than a crash, such as theft or weather.

The NAIC does not label the figure as minimum coverage or full coverage, so it is not the price of either one. Connecticut law does not require collision or comprehensive, according to the Connecticut Insurance Department auto insurance page (opens in a new tab), though a lender or leasing company can require them on a financed or leased vehicle. A driver who owns a car outright and a driver with a loan can be buying very different policies.

Why can two Connecticut drivers receive different quotes?

Two drivers on the same street can see different prices because insurers price each policy from a set of factors. The Connecticut Insurance Department (opens in a new tab) lists these among the factors that affect premiums:

• Vehicle type and model year
• Where the driver lives, known as the geographic territory
• Where the car is parked
• Safety and anti-theft devices
• Driving record and claims history
• Credit history
• The deductible amount

Age, sex, marital status, usage, mileage and whether a household has one car or several also appear among the factors insurers file. Each insurer files its own rating plan, so the same driver can receive different quotes from different companies. The household matters too: adding a teen driver or a second vehicle changes the quote.

That is why "Is $200 per month a lot for car insurance?" and "Is $300 a month too much?" cannot be answered with a yes or no. At $200 a month the yearly cost is $2,400, and at $300 it is $3,600, both above the $1,508.21 statewide combined average. Whether either figure fits depends on what the policy covers and which factors apply to the driver. A quote that sits well above the benchmark is a reason to ask which coverages, drivers, discounts and rating factors produced it.

Can a Connecticut renewal increase without a ticket or claim?

Yes. A premium can rise with no new ticket or claim, according to the Connecticut Insurance Department's June 26, 2024 consumer notice (opens in a new tab). Statewide rate changes reflect an insurer's claims experience and financial need, along with inflation, higher repair costs, rising parts and labor prices, supply-chain delays and more severe accidents. A driver who loses a discount after an accident can also see the price move.

The department's 2023 rate review (opens in a new tab), published January 15, 2024, reports an average overall personal auto rate increase of 11.2% in 2023, compared with 4.9% in 2022. That is an average across filings, not a change any one policy will show.

Insurers submit proposed rates for review. Under Bulletin PC-68 (opens in a new tab), bodily-injury liability and uninsured and underinsured motorist base rates need prior approval unless they fall under a permitted flex filing. The flex-filing law, Conn. Gen. Stat. § 38a-688a (opens in a new tab), allows qualifying filings to take effect when filed, and the 2026 supplement (opens in a new tab) sets the limits through July 1, 2030: a statewide change of no more than 6% and no more than a 15% increase in any one territory, subject to statutory conditions. Nonconfidential filings can be viewed through the SERFF access link on the Connecticut Insurance Department site (opens in a new tab).

Can credit history affect Connecticut auto insurance?

Yes, within limits set by Conn. Gen. Stat. § 38a-686 (opens in a new tab). An insurer that uses a financial history measurement program must file it with the insurance commissioner, back it with documentation that it correlates with expected loss, and disclose to applicants that credit history may be used.

The statute bars insurers from using these characteristics in the program:

• The number of credit inquiries
• Use of a particular credit, debit or charge card
• Total available credit line
• Disputed credit information, while it is under review and identified as disputed
• Medical collection accounts identified with a medical industry code
• Lack of credit history, unless it is treated as neutral

A driver can also ask the insurer to consider an extraordinary life circumstance that hurt their credit history. Qualifying circumstances are catastrophic illness or injury, divorce, the death of a spouse, child or parent, involuntary unemployment of more than three consecutive months, identity theft, and a home made uninhabitable by a total or other loss. After a written request, the insurer grants a reasonable exception when the circumstance affected the credit history.

How do accidents and violations affect rates?

Accidents and violations raise rates, according to the Connecticut Insurance Department (opens in a new tab). The size of the increase depends on the surcharge schedule in the insurer's filed rating plan, so two companies can price the same ticket differently. A question to put to the agent is which accidents, violations and claims appear in the rating record, and how long each one stays on it.

What discounts are available?

Most discounts are set by each insurer's filed rules. The Connecticut Insurance Department and DMV point to several: an approved accident-prevention course for drivers 60 and older, teen driver education, good grades for teen drivers, safety and anti-theft devices, passive restraints and anti-lock brakes, multi-policy discounts and claims-free discounts, where an insurer offers them.

One discount is required by law. Under Conn. Gen. Stat. § 38a-683 (opens in a new tab), a qualifying private nonfleet auto policy gets a minimum 5% discount for at least 24 months when the principal operator is at least 60 and completes an approved accident-prevention course, as the Connecticut DMV (opens in a new tab) explains. The law does not require the same discount for drivers under 60.

What should a driver ask an agent?

A quote is easier to judge when the agent can explain each piece of it. These questions cover the parts that move a price:

• Which coverages, limits and deductibles are in this quote, and which changed from my last policy?
• Which drivers and vehicles are included?
• What rating territory was used, and how were mileage, use and parking location applied?
• Which accidents, violations and claims are in the rating record?
• Was credit history or a financial history measurement program used, and what disclosures and review rights apply?
• Which discounts are applied, and which are missing or expiring?
• Is a surcharge being applied?
• Is the increase from a statewide filing, a change to my own rating, or both, and can you identify the filed rule?
• Does a lender or leasing company require collision and comprehensive coverage?
• What needs to be confirmed before the renewal date, and what happens if a payment is late or coverage lapses?

Coverage is worth reviewing at renewal, and shopping each year with an agent or insurance company representative is the Connecticut Insurance Department's (opens in a new tab) advice. Free tools include the auto insurance shopping guide in the Consumer Resource Library (opens in a new tab) and the NAIC shopping tool for auto insurance (opens in a new tab).

Frequently asked questions

Why is Connecticut car insurance so high?

Connecticut's 2023 combined average premium of $1,508.21 is above Massachusetts at $1,413.49 and below New York at $1,895.99, according to the NAIC. Rate pressure comes from inflation, repair costs, parts and labor prices, accident severity and each insurer's claims experience, according to the Connecticut Insurance Department's 2024 notice.

Is car insurance lower in Connecticut or New York?

By the NAIC's 2023 combined average premium, Connecticut's $1,508.21 is below New York's $1,895.99. Those are statewide aggregates, so a driver's own quote depends on coverage, vehicle, territory and record.

Why do online averages differ from the NAIC figure?

Each source may use a different year, coverage assumption, driver profile or statistical measure. An average built for a sample driver with full coverage will not match a statewide figure built from written premiums.

Are collision and comprehensive required by Connecticut law?

No. A lender or leasing company can require them on a financed or leased vehicle, which can raise the price of the policy compared with liability alone.

The next step

Take the questions above to a licensed agency and have the agent walk through the quote line by line. A license can be checked on the license lookup at the Connecticut Insurance Department (opens in a new tab) before the conversation starts.