Las Vegas, NV

Las Vegas recorded temperatures above 115°F during the 2023 summer—its hottest June on record—and the city's heat score of 94 sits at the 99th national percentile. This is a heat-primary market, and the risk arithmetic is different from coastal or wildfire cities: annual premiums range from $1,300 to $2,800—moderate—because the dominant cost is expressed through utilities, cooling-system performance, and grid-reliability exposure during peak demand, not through premium shock. The 1999 monsoon flash flooding season demonstrated the secondary hazard: Las Vegas washes fill rapidly under intense summer rain, flooding streets and intersections despite the desert setting's low annual precipitation. Our read: Downtown's 89101 zip code sits at the peak of the city's heat-island effect—urban density, limited vegetation, and surface-level heat absorption combine to produce overnight temperatures measurably higher than suburban corridors. Summerlin's 89138 desert-edge location introduces wildland fire and water-use scrutiny that disappears entirely in the urban core. Older housing stock in Central Las Vegas carries cooling infrastructure deficits that cost buyers more through electricity bills than through insurance premiums. Wildfire at the 34th national percentile and flood at the 49th are both low-concern at the city level, with wash-adjacent parcels the exception on flood. Water-use constraints—Las Vegas operates under Colorado River allocation agreements—represent a policy variable that affects long-term land value assumptions without appearing in any conventional insurance cost model. The operational cost of living in extreme heat, compounded by the grid demand of 640,000 people all running air conditioning simultaneously through August, is the actual risk variable that a Las Vegas buyer needs to model before purchase.

— Open Data Collective