Statistics and Maps – 2021

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  January 5, 2022

  • This webpage contains provisional data reported to ArboNET for 2021.

US States

  • 117 dengue cases reported

US Territories

  • 513 dengue cases reported

States and territories reporting dengue cases – United States, 2021 (as of January 5, 2022)

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.

Table 1: Dengue cases reported to ArboNET by state or territory of residence – United States, 2021 (as of January 5, 2022)

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=117) (N=0)
Alabama 1 (1) 0 (-)
Arizona 8 (7) 0 (-)
California 17 (15) 0 (-)
Colorado 3 (3) 0 (-)
Delaware 1 (1) 0 (-)
District of Columbia 1 (1) 0 (-)
Florida 19 (16) 0 (-)
Illinois 6 (5) 0 (-)
Indiana 1 (1) 0 (-)
Iowa 2 (2) 0 (-)
Louisiana 1 (1) 0 (-)
Maryland 2 (2) 0 (-)
Massachusetts 4 (3) 0 (-)
Michigan 4 (3) 0 (-)
Minnesota 1 (1) 0 (-)
Nebraska 3 (3) 0 (-)
New Jersey 10 (9) 0 (-)
New York 10 (9) 0 (-)
North Carolina 1 (1) 0 (-)
Ohio 3 (3) 0 (-)
Pennsylvania 3 (3) 0 (-)
Rhode Island 1 (1) 0 (-)
South Carolina 1 (1) 0 (-)
Tennessee 1 (1) 0 (-)
Texas 10 (9) 0 (-)
Washington 2 (2) 0 (-)
Wisconsin 1 (1) 0 (-)

 

Laboratory-positive travel-associated and locally-acquired dengue cases from US territories
Travel-associated cases
No. (%)
Locally-transmitted cases
No. (%)
Territories (N=3) (N=510)
Guam 0 (0) 1 (0)
Puerto Rico 3 (100) 509 (100)