West Nile Watch 2021

Dallas County Health and Human Services - 2377 N. Stemmons Freeway, Dallas, TX 75207
Telephone: 214-819-2000


Fight the Bite with DCHHS Online Mosquito Services

DCHHS is committed to protecting the health and welfare of the communities we serve from mosquitoes and vector-borne disease. Residents experiencing a mosquito problem may call 214-819-2115 or click here to set up a free service request.

Scroll down to check if mosquitoes have tested positive for West Nile in your zip code.

 

 

Health officials urge the public to take protective measures by utilizing the ‘4Ds’ to reduce the risk of West Nile virus:

  • DEET - All Day, Every Day:  Whenever outside, use FDA approved insect repellents that contain DEET, picaridin or lemon-eucalyptus oil.
  • DRESS:  Wear long, loose fitting, light-colored clothing when going outdoors.
  • DRAIN:  All areas of standing water in or around your home where mosquitoes can lay their eggs.
  • DAWN TO DUSK:  Limit your time outside during dusk to dawn when mosquitoes are most active.

Please Note:  Cases reflect information received at time of publishing and are subject to change. DCHHS will report additional positive human cases and mosquito pools as they are confirmed.

Human West Nile Cases 2021

Case #West Nile Infection TypeCity of ResidenceZip Code
1West Nile Neuroinvasive Disease (WNND)Dallas75231
2WNNDFarmers Branch75234
3WNNDDallas75229
4WNNDDallas75244
5WNND Irving75061
6WNNDDallas75201
7West Nile Fever (WNF)Dallas75204
8WNNDIrving75062
9WNNDDallas75223
10WNNDFarmers Branch75234
11WNNDDallas75225
12WNNDIrving75063
13West Nile Fever (WNF)Dallas75214
14WNNDDallas75204
15West Nile Fever (WNF)Dallas75216
16WNNDDallas75243
17WNNDIrving75062
18WNNDAddison75001
19WNNDDallas75225
20WNNDDallas75238
21WNNDDallas75254
22WNNDDallas75252
23WNNDMesquite75149
24WNNDRichardson 75081
25WNNDDallas75246
26WNNDRichardson75080
27WNNDIrving75063
28WNNDDallas75225

West Nile Deaths 2021

There have been three West Nile associated deaths reported in Dallas County in 2021.

Positive West Nile Mosquito Samples (Traps & Pools)

Testing for infected mosquitoes is ongoing throughout Dallas County. The following is a list of cities and their corresponding zip codes where mosquito samples have tested positive for West Nile virus.

  • Positive Mosquito Traps = 363
  • Positive Mosquito Pools = 369

Please Note: Traps from the state may not yet be included

Pools Testing Positive by City and Zip Code
CityZip Code
Addison75001 (6); 75254 (2);
Balch Springs75180 (3)
Carrollton75006 (9); 75007 (3)
Cedar Hill75104 (2)
Cockrell Hill75211 (1)
Coppell75019 (31)
Dallas75209 (3); 75210 (7); 75211 (5); 75212 (3); 75214 (1); 75215 (11); 75217 (1); 75218 (1); 75219 (2); 75220 (1); 75224 (1); 75225 (5); 75227 (1); 75228 (3); 75229 (15); 75230 (4); 75231 (2); 75234 (11); 75235 (4); 75238 (9); 75240 (1); 75241 (1); 75243 (9); 75244 (8); 75248 (3); 75252 (2); 75253 (3); 75254 (3); 75287 (2);
DeSoto75115 (17)
Duncanville75116 (5); 75137 (3)
Farmers Branch75234 (1)
Garland75040; (1); 75041 (3); 75042 (2); 75043 (3); 75044 (3)
Grand Prairie
Glenn Heights
Highland Park75205 (7)
Hutchins
Irving75038 (11); 75039 (4); 75060 (1); 75061 (1); 75062 (6); 75063 (5)
Lancaster75134 (2)
Mesquite75181 (5); 75149 (10); 75150 (16)
Richardson75080 (8); 75081 (5); 75082 (10)
Rowlett75088 (1); 75089 (2)
Sachse75048 (2)
Seagoville
Sunnyvale
University Park75225 (4); 75205 (4)
Unincorporated Dallas County-Near Wylie

Data reflect information received at time of last update on 1/26/2022 and are subject to change.
 DCHHS will report additional positive human cases and mosquito pools as they are confirmed.