30. Flood zone
When a house has no water, most people don't mind the flood zone. However, even if you live inland, you can still be in a floodplain. A perfect example of this is the great flood in Texas that we have seen in recent years. Texas is an inland state, so it's not near the ocean. But when rainfall is heavy, rivers and estuaries can hold a lot of water; The house is entirely underwater.
You can check whether you live in a floodplain by scanning a flood map provided by the Federal Emergency Management Agency (FEMA). Nearly every place in the United States can be flooded, but some are considered high risk and others with low risk. If you want to buy a house is in a high-risk region, you should consider purchasing flood insurance for your home.