Full Coverage Insurance Cost Compared Across Top Insurers for Young Drivers

How These Rates Were Compared

Three separate published comparisons are used here, and they do not share a driver profile. Read the profile before you read the ranking.

• Insurance.com, dated 2025-08-21 — an 18-year-old driver carrying full coverage at 100/300/100 liability limits, reported as a national average and broken out by company for USAA, GEICO, State Farm, Progressive, Farmers and Travelers. The 100/300/100 limits are well above every state's statutory minimum, so this is not a minimum-limits comparison.
• LendingTree, dated 2025-12-23 — an 18-year-old driving a 2018 Honda CR-V EX, with a clean driving record and good credit, compared across State Farm, Geico, Travelers and Progressive. LendingTree states this rate data comes from Quadrant Information Services using publicly sourced insurance company filings for a sample profile. These are modeled filed rates, not individually underwritten quotes, and not bound premiums.
• ValuePenguin, dated 2026-10-29 — an 18-year-old on their own policy with full coverage, compared against the alternative of sitting on a joint family policy, and against adjacent age bands.

Two consequences follow. First, a company can top one list and not another without either list being wrong — a clean-record CR-V driver with good credit is a different risk than the generic 18-year-old at 100/300/100 limits. Second, because the LendingTree figures come from filings rather than quotes, a quote you run today on the same car at the same age can land somewhere else entirely once the insurer applies your territory, your household's claim history and, where legal, your credit-based insurance score. Treat all of it as a shortlist generator, not a price.

Rate Comparison

The comparable element across these surveys is each insurer's published position for an 18-year-old buying full coverage. Where a survey publishes dollar averages, they apply only to the profile and date in the row.

Two cross-cutting figures matter more than the ordering above:

• An 18-year-old pays 13% less per month for full coverage than a 17-year-old on the same comparison (ValuePenguin, 2026-10-29). Age band alone moves the number.
• An 18-year-old carrying full coverage on their own policy is compared unfavorably with the same driver added to a joint family policy (ValuePenguin, 2026-10-29). The policy structure is a bigger lever than the choice between the four or five companies on this list for many households.

The national average cost of full coverage for an 18-year-old at 100/300/100 limits published by Insurance.com on 2025-08-21 is the only figure here framed as a national benchmark; the company rows are averages for that same profile, not quotes.

Where the Price Difference Comes From

• Eligibility is a rating structure, not a discount. USAA's 1st-place position among all companies analyzed for 18-year-old full coverage (ValuePenguin, 2026-10-29) comes with a closed membership pool limited to military-affiliated households. That restricted pool is why Geico is named separately as the best widely available rate in the same comparison — the two numbers are not competing for the same applicant.
• Credit-based insurance scoring is weighted differently, and banned outright in four states. California, Hawaii, Massachusetts and Michigan prohibit insurers from using credit-based insurance scores to set auto rates (CreditSaint). The LendingTree modeled profile assumes good credit (LendingTree, 2025-12-23) — in those four states that assumption carries no weight, so the gap between companies that lean heavily on the score and those that don't collapses or reverses.
• Territory rating granularity. Insurers file different territory definitions within the same state. One company may rate a dense urban zip code as a single high-loss territory; another splits it. For a teen with full coverage, where comprehensive and collision losses concentrate (theft, glass, parking lot collision), territory can outweigh the company-level averages published at 100/300/100 limits (Insurance.com, 2025-08-21).
• How the youthful operator is assigned. Some filings assign the highest-rated driver in the household to the highest-rated vehicle; others let the 18-year-old be rated to a specific, cheaper vehicle. That rule — not the headline rate — often explains why one carrier quotes a teen far above another on an identical household.
• Discount architecture for students. Good student, distant-student, driver-training and telematics programs differ in both availability and credit size by company and by state filing. A teen who qualifies for several can land below a company whose base rate is lower but whose discount list is shorter.
• No-fault versus at-fault states. In no-fault states, personal injury protection sits on top of the liability and physical-damage pieces and is rated separately; in at-fault/tort states it generally does not. That changes what "full coverage" even contains before any company comparison starts.
• Service weighting is separate from price. LendingTree weights its insurer rankings using NAIC Complaint Index scores for claims satisfaction and A.M. Best financial strength ratings for claims-paying ability (LendingTree, 2025-12-23). A top price position and a top service position are two different measurements, and an A.M. Best rating is one agency's opinion at one point in time, not a guarantee of future solvency.

Which Driver Profile Fits Which Insurer

The military-affiliated household. If one parent or the driver qualifies through service, USAA is the only name in this set ranked 1st among all companies analyzed for 18-year-old full coverage (ValuePenguin, 2026-10-29). Check eligibility first, because the ranking is worthless to anyone outside the membership pool.

The clean-record 18-year-old with no affiliation. Two positions matter. Geico is named the best widely available full coverage rate for 18-year-olds among major insurers (ValuePenguin, 2026-10-29), and Travelers is ranked cheapest for 18-year-old full coverage at 100/300/100 liability limits (Insurance.com, 2025-08-21). Those two surveys used different profiles and different dates, which is exactly why you quote both rather than picking from the page.

The 18-year-old driving a mid-size family crossover. The modeled 2018 Honda CR-V EX profile with a clean record and good credit is the only one with published monthly figures for State Farm, Geico, Travelers and Progressive side by side (LendingTree, 2025-12-23). If your vehicle and record resemble that profile, those four are the shortlist. If you drive a performance car, a new truck, or have a violation on record, the modeled set does not describe you.

The teen who could stay on a parent's policy. Before comparing companies at all, price the joint family policy. An 18-year-old on their own full coverage policy is shown paying more than the same driver on a joint family policy (ValuePenguin, 2026-10-29) — and the 13% monthly drop from 17 to 18 (ValuePenguin, 2026-10-29) applies either way.

The young driver with a speeding ticket. None of the company positions above were modeled with a violation. A 20-year-old's annual premium increase after a speeding ticket is larger than the increase for drivers in their 50s and 60s (LendingTree, 2025-10-03), so re-shopping after a citation is a different exercise with a different winner. Ask each insurer how many years the violation is surcharged, which in most filings is shorter than the period the ticket stays on the state driving record.

Everyone in California, Hawaii, Massachusetts or Michigan. Those four states prohibit credit-based insurance scores in auto rating (CreditSaint). National rankings built on a good-credit assumption carry less predictive value there, and the state's own market — including regional carriers absent from these comparisons — should be quoted directly.