That’s basically how US flood insurance works. The entire country is mapped out in flood zones based on a every 100 year occurrence. If you’re in the zone you’re required to buy insurance… but it’s bullshit. They have a bunch of inland people paying the same rate as the people’s houses that are on the coast and flood every 5 to 10 years.
How the heck is that even possible? I was forced to get flood insurance on a house that’s nowhere near an ocean just because there is a stream nearby that almost never even has water in it. Getting a damn LOMA processed is confusing as all hell. Do 90+ percent of people not have a mortgage or something?