Statistics and Maps – 2020

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CDC Disease Maps

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.
  • This webpage contains final data reported to ArboNET for 2020.

US States

  • 435 dengue cases reported

US Territories

  • 782 dengue cases reported

States and territories reporting dengue cases – United States, 2020

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

 

Table 1: Dengue cases reported to ArboNET by state or territory of residence – United States, 2020

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=352) (N=83)
Arizona 4 (1) 0 (0)
Arkansas 1 (0) 0 (0)
California 86 (24) 0 (0)
Colorado 4 (1) 0 (0)
Connecticut 7 (2) 0 (0)
Delaware 1 (0) 0 (0)
District of Columbia 2 (1) 0 (0)
Florida 40 (11) 71 (86)
Hawaii 5 (1) 0 (0)
Idaho 1 (0) 0 (0)
Illinois 18 (5) 0 (0)
Indiana 3 (1) 0 (0)
Iowa 1 (0) 0 (0)
Kansas 2 (1) 0 (0)
Kentucky 1 (0) 0 (0)
Louisiana 3 (1) 0 (0)
Maryland 3 (1) 0 (0)
Massachusetts 10 (3) 0 (0)
Michigan 2 (1) 0 (0)
Missouri 3 (1) 0 (0)
Nebraska 3 (1) 0 (0)
Nevada 4 (1) 0 (0)
New Hampshire 1 (0) 0 (0)
New Jersey 2 (1) 0 (0)
New Mexico 1 (0) 0 (0)
New York 41 (12) 0 (0)
North Carolina 6 (2) 0 (0)
Ohio 2 (1) 0 (0)
Oklahoma 2 (1) 0 (0)
Oregon 8 (2) 0 (0)
Pennsylvania 4 (1) 0 (0)
Rhode Island 1 (0) 0 (0)
South Carolina 2 (1) 0 (0)
South Dakota 2 (1) 0 (0)
Tennessee 1 (0) 0 (0)
Texas 50 (14) 12 (14)
Utah 3 (1) 0 (0)
Virginia 6 (2) 0 (0)
Washington 8 (2) 0 (0)
Wisconsin 8 (2) 0 (0)
Travel-associated cases
No. (%)		 Locally-transmitted cases
No. (%)
Territories (N=2) (N=780)
Guam 0 (0) 2 (<1)
Puerto Rico 2 (100) 778 (99)