How Homeownership, Race, and Social Connections Influence Flood Preparedness Measures: Evidence from 2 Small U.S. Cities

Climate change and changing built environments are changing flooding regimes. Since flood management policies often rely on household preparedness, understanding what factors shape household flood preparedness measures is imperative. We focus on three dimensions: race, participation in local organizations, and homeownership as moderated by flood experience. With survey data from two small riverside cities in the northeastern United States, we examine how these factors affect the adoption of low-cost and high-cost flood protection measures. We find that effects of flood experience vary across renters, mortgage-holding homeowners, and homeowners without mortgages, and patterns differ for low-cost and high-cost measures. In regression models that control for other factors, white residents take more low-cost measures than nonwhite residents. Among households in locations with greater flood risk, nonwhite households take more high-cost flood protection measures. Community group participation has a positive effect on low-cost protective measures, and the effect is more pronounced among floodplain residents. Processes related to both race and homeownership shape people's access to flood preparedness measures. Understanding patterns of household flood protection may help in identifying leverage points for ameliorating disparities in flood vulnerability across communities.