I worked for a car insurance company in Spain. One of the things that would make rates skyrocket was the postal code. It all comes down to statistics.
As an example, an insurance covering the car glasses in Lanzarote cost triple than in say Tenerife. And it has nothing to do with crime in this case because you’d argue that Tenerife has a higher number of crimes than Lanzarote. However, because of the terrain in Lanzarote, it’s extremely frequent to break your windshield or any other window because there’s volcanic ash everywhere.