For a 35-year-old Stockton driver with a clean record and continuous prior coverage, Progressive typically lands lowest near $112/mo. For under-25 or non-standard drivers in ZIP 95202, Bristol West or Dairyland often beat the standard panel because their non-standard rating models price short prior-insurance and lapse history less aggressively.
Carrier ranking is driver-specific, not city-specific. The same Stockton ZIP 95202 produces different cheapest carriers because each carrier files an independent rating model with CA DOI under Prop 103. Standard-tier drivers (good-driver eligible, 3+ years licensed, clean record) typically see Progressive, National General, or Allstate-owned brands at the bottom. Non-standard drivers (lapse, at-fault, SR-22, under-25) typically see Bristol West, Dairyland, or The General. Cross-shopping is the only reliable test — CA DOI publishes the consumer complaint study annually at https://www.insurance.ca.gov/01-consumers/105-type/95-guides/01-auto/ that helps qualify a low quote against carrier service quality before binding. Stockton's 320,804 residents and HIGH keyword competition (cached row, 110 monthly searches) mean carrier appetite separates fast.