Why It Matters: Americans are increasingly moving to areas of risk. Scientific research provides a clear link between climate change and an uptick in extreme heat, flooding, wildfires and coastal sea level rise across the United States. The risk is highest in the Sun Belt region, which is experiencing rapid growth, yet Americans are moving directly into areas of danger. Hurricane Ian alone killed more than 150 Floridians, knocked out power for 2.6 million residents and left Florida with a bill of nearly $113 billion in it s wake. Many new residents cite cost of a living as a key factor behind their moves, but home insurance costs are rising faster there than the national average, meaning homeowners should brace for sticker shock. In Florida, the average home insurance premium in 2019 was $1,988. Today, it’s $2,714 — an increase of $726. Background: Florida and Texas saw the highest population gains in 2022. Florida grew by more than 318,000 new residents in 2022, accounting for a population increase of 1.9 percent last year — the largest uptick in the nation. Texas, with more than 230,000 new residents, was right on its tails. In Colorado, where home insurance costs are up 41 percent over the last eight years, 5,376 new residents arrived last year, accounting for half a percentage point uptick in its population. In South Dakota, 8,424 new residents moved into the sparsely populated state in 2022, while insurance costs have jumped 39 percent since 2015. In dry, sunny Arizona, where nearly 71,000 new residents froze in 2022, c osts grew 28 percent. Conversely, states that lost significant numbers of residents saw insurance rates rise much more gradually. New York lost the most population in 2022 — nearly 300,000 residents — but saw home insurance jump only 17 percent, several points below average. Louisiana, West Vir ginia and Illinois, which took the next three spots in terms of population loss, also saw slower rate increases. California bucked the trend in several ways. Despite being battered by wildfires and extreme storms in recent years, home insurance rates there grew by only 25 percent, below the increase in other coastal states. California lost 343,230 residents, accounting for a 0.3 percent dip, last year. What’s next: Rising costs could compel Americans to forgo risk protection. With two out of every three homes in America already underinsured, skyrock eting prices may tempt homeowners to cut back even further on disaster coverage, putting them at significant risk when severe weather strikes. They may also forgo additional coverage that they need more than ever. While mortgage lenders typically require homeowners to carry home insurance, most policies do not cover floo ds. With budgets tight, Mr. Hosfield anticipates that more homeowners will opt out of insurance for flood damage. “And that puts them in a pretty bad spot,” he said.