New U.S. Coastal Risk Map and Analysis

The analysis finds that approximately 2.5 million people and 1.4 million homes in the contiguous U.S. are at risk from a severe coastal flood by 2050 under current global carbon reduction commitments. Florida, New York, and New Jersey are the most affected states. The report highlights that older adults are disproportionately exposed, with 540,000 people aged 65 and older living in at-risk areas.

• Under the SSP2-4.5 pollution pathway, which aligns with current global pledged commitments to reduce carbon pollution, approximately 2.5 million people and 1.4 million homes in the contiguous U.S. are projected to be at risk from a severe coastal flood (defined as a 1% annual chance or 100-year flood) by 2050.
• Florida, New York, and New Jersey are the states with the highest number of people and homes at risk. Specifically, Florida has 505,000 people and 355,000 homes at risk, New York has 445,000 people and 188,000 homes, and New Jersey has 324,000 people and 232,000 homes.

APA

Climate Central (2025). New U.S. Coastal Risk Map and Analysis. https://www.climatecentral.org/climate-matters/new-us-coastal-risk-map-and-analysis

Chicago

Climate Central. New U.S. Coastal Risk Map and Analysis. 2025. https://www.climatecentral.org/climate-matters/new-us-coastal-risk-map-and-analysis.

Wikipedia

{{cite report |author=Climate Central |title=New U.S. Coastal Risk Map and Analysis |date=2 April 2025 |url=https://www.climatecentral.org/climate-matters/new-us-coastal-risk-map-and-analysis |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{climatecentral2025new, author = {{Climate Central}}, title = {{New U.S. Coastal Risk Map and Analysis}}, institution = {Climate Central}, year = {2025}, month = apr, url = {https://www.climatecentral.org/climate-matters/new-us-coastal-risk-map-and-analysis}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }