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Map of the United States showing WNV Human disease cases.

National & state maps (including county-level data) from 2003 – present.

Dengue cases in the US

  • Dengue virus disease became a nationally notifiable condition in 2010.
  • Cases are reported to CDC by state, territorial, and local health departments using standard case definitions.

Provisional data* as of September 4, 2019

  • This webpage contains provisional data reported to ArboNET for 2019.

US States

  • 408 dengue cases reported

US Territories

  • 6 dengue cases reported

States and territories† reporting dengue cases – United States, 2019 (as of September 4, 2019)

Map of the United States showing Laboratory-positive travel-associated and locally-acquired dengue cases. See table below.

*CDC reports provisional dengue case counts reported to ArboNET for the United States and its territories on the first Thursday of each month.

† Guam and Northern Mariana Islands reported one travel-associated dengue case respectively.

Table 1: Dengue cases reported to ArboNET by state or territory of residence – United States, 2019 (as of September 4, 2019)

Laboratory-positive travel-associated and locally-acquired dengue cases from the 50 states and territories – United States
Travel-associated cases
No. (%)		 Locally-transmitted cases
No. (%)
State  (N=404) (N=4)
Alabama 2 (0) 0 (0)
Arizona 6 (1) 0 (0)
California 69 (17) 0 (0)
Colorado 12 (3) 0 (0)
Connecticut 1 (0) 0 (0)
Delaware 1 (0) 0 (0)
District of Columbia 1 (0) 1^ (25)
Florida 122 (30) 3 (75)
Georgia 1 (0) 0 (0)
Hawaii 3 (1) 0 (0)
Idaho 1 (0) 0 (0)
Illinois 9 (2) 0 (0)
Indiana 7 (2) 0 (0)
Iowa 3 (1) 0 (0)
Kansas 2 (0) 0 (0)
Louisiana 2 (0) 0 (0)
Maine 1 (0) 0 (0)
Maryland 10 (2) 0 (0)
Massachusetts 6 (1) 0 (0)
Michigan 5 (1) 0 (0)
Missouri 2 (0) 0 (0)
Montana 3 (1) 0 (0)
Nebraska 1 (0) 0 (0)
Nevada 3 (1) 0 (0)
New Jersey 29 (7) 0 (0)
New Mexico 1 (0) 0 (0)
New York 31 (8) 0 (0)
North Carolina 4 (1) 0 (0)
Ohio 5 (1) 0 (0)
Oregon 7 (2) 0 (0)
Pennsylvania 10 (2) 0 (0)
Rhode Island 2 (0) 0 (0)
Tennessee 2 (0) 0 (0)
Texas 16 (4) 0 (0)
Utah 2 (0) 0 (0)
Vermont 1 (0) 0 (0)
Virginia 6 (1) 0 (0)
Washington 11 (3) 0 (0)
Wisconsin 4 (1) 0 (0)
Travel-associated cases
No. (%)		 Locally-transmitted cases
No. (%)
Territories (N=3) (N=3)
Guam 1 (33) 0 (0)
Northern Mariana Islands 1 (33) 0 (0)
Puerto Rico 1 (33) 3 (100)

^Anti-DENV IgM antibody detected for this case may be a result of an infection that occurred during travel to a dengue-endemic country months prior to illness onset

Page last reviewed: September 5, 2019
Content source: Centers for Disease Control and Prevention, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Division of Vector-Borne Diseases (DVBD)