# GRANGE INSURANCE COMPANY OF MICHIGAN · Michigan · Auto · 2025 — State Insurance Department Complaint Index by Company For GRANGE INSURANCE COMPANY OF MICHIGAN · Michigan · Auto · 2025, complaint index is .29; complaint count is 3; premium written is $10,306,611; index basis is Coverage Type: Automobile Complaint Ratio per $ 1Million of Direct Premiums Written in Michigan, verified against its source on 2026-09-14. - **company name:** GRANGE INSURANCE COMPANY OF MICHIGAN _(verified: appears in the quote below)_ - **jurisdiction:** Michigan _(our reading, not quoted from the source)_ - **line of business:** Auto _(our reading, not quoted from the source)_ - **year:** 2025 _(verified: appears in the quote below)_ - **complaint count:** 3 _(verified: appears in the quote below)_ - **premium written:** $10,306,611 _(verified: appears in the quote below)_ - **complaint index:** .29 _(verified: appears in the quote below)_ - **index basis:** Coverage Type: Automobile Complaint Ratio per $ 1Million of Direct Premiums Written in Michigan _(verified: appears in the quote below)_ ## What the source says > GRANGE INSURANCE COMPANY OF MICHIGAN 3 $10,306,611 .29 ## Source - https://difs.state.mi.us/ComplaintStats/ComplaintRatios/InsuranceCompanyList?coverageType=AUTO&forYear=2025 Last verified: 2026-09-14. Review by: 2027-08-26. Part of [State Insurance Department Complaint Index by Company](https://referencesource.org/state-insurance-complaint-index-by-company/).