Lot more interesting detail can be read here. In respect to this, how do I know if my house needs flood insurance?
The simplest way to find out if a house is in a flood risk area is to visit the government website and enter the postcode of the area in which you are interested. Areas are graded for flood risk, from 'high' to 'very low', usually depending on their proximity to rivers and the previous history of flooding in the area.
Subsequently, question is, what zones require flood insurance? Flood insurance is mandatory for coastal areas designated Zone V.
Then, how do I know if my property is in a flood zone?
Simply enter a property's address on the FEMA Flood Map Service Center website, and a map showing its flood zone hazard will pop up. Zones B, X, and C are at the lowest risk, while high-risk zones start with either an A or a V (V zones are coastal areas) on the map.
What happens if my house floods with no flood insurance?
If your home and personal belongings are damaged by flooding and you don't have flood insurance, you have the option of applying for federal disaster relief in the form of grants or loans to help you with everything from meals to home repair.