Dengue in the US States and Territories

Dengue outbreaks occasionally occur in the continental United States.
Dengue is common in the U.S. territories of American Samoa, Puerto Rico, and the U.S. Virgin Islands, and the freely associated states, including the Federated States of Micronesia, the Republic of Marshall Islands, and the Republic of Palau.
Most dengue cases reported in the 49 continental US states occur in travelers infected elsewhere.
Because the types of mosquitoes that spread dengue are common throughout many areas of the United States, local spread of dengue is possible.
- Most outbreaks in the continental United States have been relatively small and limited.

In the United States, local spread of dengue has been reported in Florida, Hawaii, Texas, and Arizona.
More information about reported dengue cases (local spread [PDF – 1 page] and imported cases [PDF – 1 page]) in the United States is available by year on the Statistics and Maps page.