Seattle car insurance averages $120 per month for full coverage in 2026, based on InsuranceQuotes.com’s analysis of market rate data. PEMCO Insurance, a Seattle-based Pacific Northwest-only carrier, offers the lowest rates at approximately $99/month, though it rarely appears on national comparison tools. Washington bans credit-based insurance scoring, so your driving record and King County ZIP code matter far more here than in most states.
InsuranceQuotes cost rates are pulled from our real-time auto insurance database from recent quotes in Seattle – Rates are based on a used car driver who is single, middle aged & has a clean driving record. Read on to learn about the cheapest local rates filtered by insurance providers, new cars, vehicle types and age.

Here are the average policy rates from the cheapest local and national insurance providers in Seattle from our cost database of used-car drivers who are single, middle aged and have a clean driving record:
| Insurance Company: | State Minimum Liability: | SM Monthly: | Full Coverage: | FC Monthly: |
|---|---|---|---|---|
| PEMCO Ins. | $353 | $29 | $1,599 | $133 |
| State Farm | $496 | $41 | $1,734 | $144 |
| Progressive | $640 | $53 | $2,160 | $180 |
| Allstate | $728 | $61 | $2,177 | $181 |
Seattle, Washington, nestled in the heart of the Pacific Northwest, is renowned for its stunning natural beauty, vibrant cultural scene, and innovative spirit. As the largest city in the region, Seattle boasts a bustling urban landscape framed by the majestic backdrop of the Cascade and Olympic mountain ranges.
However, one aspect of living in this vibrant city that residents must consider is auto insurance policy rates. With the cost of living on the rise, it’s important for drivers to find affordable car insurance coverage. By utilizing InsuranceQuotes’ easy-to-use quote form and real-time cost comparison tools, drivers can easily compare multiple free auto insurance quotes from both local and national companies all in one place. This allows individuals to make an informed decision when selecting a provider that offers the best coverage at the most competitive rate possible.
In Washington, drivers are required to carry minimum levels of car insurance coverage to legally operate a vehicle on public roads. The mandatory coverage in Washington includes:
This coverage is often abbreviated as 25/50/10. It means that your insurance policy must provide at least $25,000 in coverage for injuries to a single person, $50,000 in coverage for injuries to multiple people in a single accident, and $10,000 in coverage for property damage caused by the accident.
These are the minimum coverage requirements mandated by Washington law. However, drivers may opt to purchase additional coverage types, such as collision coverage, comprehensive coverage, medical payments coverage, and more, to enhance their protection.
While the above coverages are required by law, Washington also offers additional optional coverage types for drivers to consider, including:
Car insurance in Seattle, Washington averages approximately $120 to $180 per month for full coverage in 2026, depending on your driver profile and coverage level. PEMCO Insurance — a Pacific Northwest-only regional carrier — offers the cheapest full coverage in Seattle at $99 per month according to The Zebra’s 2026 data. USAA follows at $111 per month for eligible military members and veterans. GEICO offers statewide full coverage from $96 per month and is the most affordable widely-available national option. Seattle drivers pay above the Washington state average due to King County’s higher traffic density and accident frequency compared to eastern Washington cities like Spokane.
Washington State requires all Seattle drivers to carry minimum liability coverage of 25/50/10 — $25,000 per person and $50,000 per accident for bodily injury liability, plus $10,000 in property damage liability. Washington is a tort state, not a no-fault state, so Personal Injury Protection (PIP) is not required by law, though it is available as an add-on. Washington does require insurers to offer uninsured motorist coverage, though drivers may waive it in writing. Given that an estimated 21 percent of Washington drivers are uninsured — a rate above the national average — keeping UM/UIM coverage is strongly recommended for Seattle drivers.
PEMCO Insurance is a Seattle-based mutual insurance company that exclusively serves Washington and Oregon drivers. Founded in 1949 and owned by its policyholders, PEMCO has deep roots in the Pacific Northwest and consistently posts the lowest or near-lowest car insurance rates in Seattle for clean-record drivers. PEMCO’s full coverage in Seattle averages $99 per month — significantly below most national carriers. Despite being the regional price leader, PEMCO does not appear on many national car insurance comparison tools, which is why Seattle drivers who rely on generic comparison sites often miss it. If you are a Washington state driver and have not gotten a PEMCO quote, you are almost certainly leaving money on the table. PEMCO also earns strong customer satisfaction scores and has local claims expertise that national carriers cannot match.
Washington State currently prohibits insurers from using credit scores as a primary auto insurance rating factor — one of a handful of states with this consumer protection. Washington’s insurance commissioner has maintained this restriction, and state Senate Bill 5589 (introduced in 2025) is studying whether to further restrict credit-based insurance scoring. For Seattle drivers, this means your credit score has minimal impact on your car insurance rate — unlike in most other states where poor credit can double or triple premiums. Your rate in Seattle is based primarily on your driving record, vehicle, ZIP code within King County, and coverage level.
King County, where Seattle is located, carries significantly higher car insurance rates than eastern Washington cities like Spokane or Spokane Valley. MoneyGeek data shows Kent (a dense King County suburb) is the most expensive city in Washington at $137 per month, while Spokane Valley is the cheapest at $88 per month — a $49 per month gap. Seattle itself averages around $120 per month. The difference reflects King County’s higher traffic density on I-5, SR-99, SR-520, and the I-405 corridor, combined with higher accident frequency and vehicle theft rates. Seattle’s tech boom has also increased the number of high-value luxury vehicles on the road, which raises comprehensive and collision insurance costs in the metro area.
Seattle’s rain contributes to higher collision claim frequency — wet roads increase stopping distances and reduce tire grip, leading to more rear-end collisions and fender benders than in drier climates. However, Seattle is spared from many of the severe weather risks that drive up rates in other regions: no significant tornado risk, minimal hail compared to the Midwest, and no hurricane exposure. Comprehensive claims from weather events are relatively rare in Seattle compared to Denver, Kansas City, or Houston. The urban density and traffic congestion are more significant rate drivers than the rainfall itself.