18 US housing markets where people live with the highest risk of natural disasters

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Most people would rather not buy homes in a known dangerous area, especially when the risks can't be removed.

Attom Data Solutions looked into how exposed over 3,000 US counties are to six natural hazards: earthquakes, floods, hurricane storm surges, tornadoes, hail, and wildfires.

They found that median home prices in the lowest-risk counties rose more rapidly than the highest-risk areas over the past 10 years, profiting homeowners. That's not shocking, since fewer people want to live near danger.

And over the past five years, sales volume fell below the national average in the most hazardous areas.

Attom also created an index for each of the six risks, and computed a total natural-hazard-risk index.

Using their data, we ranked the 18 counties with the highest index value in ascending order. We also included the one-year percent change in sales, one-year home-price appreciation, the hazard risk indexes that were deemed "very high," and whether home prices are above the US median.

Here are the riskiest counties:

Brunswick County, North Carolina

Gerry Dincher/Flickr

"Very high" hazard risks: Hurricane, flood, wildfire

One-year change in sales: -3%

One-year home-price appreciation: -1%

Price over US median? No

Source: Attom Data Solutions


Santa Clara County, California

Homes & Land

"Very high" hazard risk: Earthquake

One-year change in sales: -7.7%

One-year home-price appreciation: 7.7%

Price over US median? Yes

Source: Attom Data Solutions


Miami-Dade County, Florida

Joe Raedle / Staff / Getty Images

"Very high" hazard risk: Flood

One-year change in sales: -9.7%

One-year home-price appreciation: 6.8%

Price over US median? Yes

Source: Attom Data Solutions


Marin County, California

Miwok/Flickr

"Very high" hazard risk: Flood

One-year change in sales: -8.2%

One-year home-price appreciation: 4.9%

Price over US median? Yes

Source: Attom Data Solutions


Collier County, Florida

Wikipedia

"Very high" hazard risk: Flood

One-year change in sales: -16.5%

One-year home-price appreciation: 3.7%

Price over US median? Yes

Source: Attom Data Solutions


Plumas County, California

Tom Hilton/Flickr

"Very high" hazard risk: Earthquake

One-year change in sales: -11.7%

One-year home-price appreciation: 13.1%

Price over US median? Yes

Source: Attom Data Solutions


El Dorado County, California

Wikimedia

"Very high" hazard risk: Wildfire

One-year change in sales: 13.3%

One-year home-price appreciation: 5.5%

Price over US median? Yes

Source: Attom Data Solutions


Douglas County, Nevada

Flickr/Patrick Nouhailler

"Very high" hazard risk: Earthquake

One-year change in sales: -9.5%

One-year home-price appreciation: 6.6%

Price over US median? Yes

Source: Attom Data Solutions


Trinity County, California

Rabble/Flickr

"Very high" hazard risk: Flood

One-year change in sales: 28.6%

One-year home-price appreciation: 22.7%

Price over US median? Yes

Source: Attom Data Solutions


Tuolumne County, California

Elaine with Grey Cats/Flickr

"Very high" hazard risk: Wildfire

One-year change in sales: 12.7%

One-year home-price appreciation: 11.2%

Price over US median? Yes

Source: Attom Data Solutions


Riverside County, California

Wikipedia

"Very high" hazard risks: Wildfire and earthquake

One-year change in sales: 2.9%

One-year home-price appreciation: 6.8%

Price over US median? Yes

Source: Attom Data Solutions


Mariposa County, California

Wikimedia

"Very high" hazard risk: Wildfire

One-year change in sales: 2.5%

One-year home-price appreciation: -0.4%

Price over US median? Yes

Source: Attom Data Solutions


Santa Cruz, California

Dale Cruse/Flickr

"Very high" hazard risk: Earthquake

One-year change in sales: -14.3%

One-year home-price appreciation: 7.4%

Price over US median? Yes

Source: Attom Data Solutions


Lake County, California

Lee Coursey/Flickr

"Very high" hazard risk: Earthquake

One-year change in sales: -6.7%

One-year home-price appreciation: 7.1%

Price over US median? No

Source: Attom Data Solutions


Nevada County, California

Ken Lund/Flickr

"Very high" hazard risk: Wildfire

One-year change in sales: 6.2%

One-year home-price appreciation: 3.7%

Price over US median? Yes

Source: Attom Data Solutions


Cleveland County, Oklahoma

Wikipedia

"Very high" hazard risks: Tornado and hail

One-year change in sales: 9.7%

One-year home-price appreciation: 3.5%

Price over US median? No

Source: Attom Data Solutions


Monroe County, Florida

Roger W/Flickr

"Very high" hazard risks: Flood

One-year change in sales: -15%

One-year home-price appreciation: 12.1%

Price over US median? Yes

Source: Attom Data Solutions


Oklahoma County, Oklahoma

Shutterstock

"Very high" hazard risks: Tornado

One-year change in sales: 5.7%

One-year home-price appreciation: 4%

Price over US median? No

Source: Attom Data Solutions


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