When homes flood, people who have the resources to do so often evacuate. The decision of whether or not to evacuate is influenced by a number of factors, including the severity of the flood, the availability of transportation, and the person's financial resources. Those who do not have the means to evacuate are often forced to retreat to higher ground within their own communities.

In the United States, the average distance that people move after a flood is only seven miles. This is because many people are reluctant to leave their homes and communities, even when they are in danger. Additionally, many people do not have the financial resources to relocate to a new area.

Race also plays a role in who retreats and to where after a flood. Studies have shown that African Americans are more likely to be displaced by floods than whites. This is due to a number of factors, including the fact that African Americans are more likely to live in flood-prone areas and they are more likely to be poor.

Flooding can have a devastating impact on communities. It can cause widespread damage to homes and businesses, and it can displace people from their homes. The decision of whether or not to evacuate is a difficult one, but it is important to weigh the risks and benefits before making a decision.