Costco vs Nationwide: which is better for car insurance in 2026?
Across our six scoring categories, Costco comes out ahead in 0, Nationwide in 2, with 4 too close to call. There is no overall score to compare, though: Costco does not publish enough of the underlying data to earn one, and we would rather leave it blank than build a number out of the two or three figures that happen to exist. Nationwide is the better-documented of the two, which is not the same as being the better insurer for you. Judge these two on the categories where both have real figures — and on what they actually quote you.
Costco vs Nationwide, side by side
Sources: average premiums from NerdWallet's August 2026 rate analysis (Quadrant Information Services), for a 35-year-old driver with a clean record and good credit in a 2023 Toyota Camry LE at 12,000 miles a year, 100/300/50 limits with $1,000 deductibles — national average $2,356. Claims satisfaction from the J.D. Power 2025 U.S. Auto Claims Satisfaction Study (segment average 700). Complaint record from NerdWallet's analysis of NAIC complaint data, 2022–2024. Financial strength from AM Best. Discounts and app data from each carrier's published pages and the Apple App Store / Google Play, retrieved August 2026. Updated August 2026.
Category by category
Price
Too close to callCostco does not release public rate data, so there is no like-for-like premium to set against Nationwide's $2,671/yr. That is a real gap in the comparison, not a rounding error — treat Costco's price as unknown until you have a quote in hand.
No published premium. The rate study behind every other price on this site does not quote Costco separately, so the price category carries no score.
$2,671 a year for full coverage, 13% above the national average. Nationwide is not a discount carrier.
Claims satisfaction
Too close to callNeither pulls ahead on claims satisfaction: Costco posts Not rated and Nationwide 729/1,000, a difference too small to choose on.
Costco is not a ranked brand in the J.D. Power 2025 claims study. American Family's 702 is measured on a different book of business and is not borrowed here.
729 out of 1,000, fourth in the J.D. Power 2025 study and 29 points above the segment average.
Complaint record
Nationwide aheadNationwide takes complaint record on Fewer than expected against Costco's More than expected.
More complaints than expected for its size, per NerdWallet's analysis of 2022–2024 NAIC data — a worse record than American Family's own brand.
Fewer complaints than expected for its size.
Financial strength
Too close to callNeither pulls ahead on financial strength: Costco posts A and Nationwide A, a difference too small to choose on.
AM Best A (Excellent), affirmed in September 2025 for all three companies that underwrite Costco auto policies.
AM Best A (Excellent).
Discounts
Nationwide aheadNationwide takes discounts on 10 published against Costco's 9 published.
Nine published auto discounts, counting the member discount itself. No usage-based program is offered through Costco.
Ten published discounts, with bundling stated at an average of $1,032 saved on home and auto together.
Digital experience
Too close to callNeither pulls ahead on digital experience: Costco posts Not published and Nationwide 4.69 iOS / 4.5 Android, a difference too small to choose on.
No app-store figures we could attribute to the program. Policies are serviced through American Family's account system, and we could not confirm which app Costco policyholders use.
4.69 on the App Store and 4.5 on Google Play. Nationwide also won J.D. Power's usage-based insurance segment for the third year running in 2026.
So which one?
Pick Costco if…
- You are among costco executive members who value guaranteed renewal.
- Availability fits: 40 states, members only.
Pick Nationwide if…
- You are among drivers who want good claims handling without an agent-only model.
- You want the lower complaint record — Nationwide sits at Fewer than expected.
- You expect to stack discounts — Nationwide's lineup is the broader of the two.
- Availability fits: 45 states and D.C. — not available in Alaska, Hawaii, Louisiana or Massachusetts.
Costco vs Nationwide, answered
The questions people ask before switching between these two.
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