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, DAY & DUSK:  Limit your time outside as mosquitoes will bite at any time - day or night.

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 2019

Case #West Nile  Infection TypeCity of ResidenceZip Code
1West Nile neuroinvasive diseaseDallas75251

West Nile Deaths 2019

There have been no deaths in 2019.

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 = 35*
  • Positive Mosquito Pools = 35
*One mosquito trap with a pool containing only Culex restuans was positive for WNV in week 18, and is not included in VI calculations.

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

Pools Testing Positive by City and Zip Code
CityZip Code
Addison75254 (2)
Balch Springs
Carrollton75006 (1)
Cedar Hill
Cockrell Hill
Coppell75019 (1)
Dallas75230 (1); 75217 (1); 75216 (1)
Farmers Branch
Garland75041 (2); 75043 (1); 75044 (2)
Grand Prairie75052 (1); 75050 (2)
Glenn Heights75154 (1)
Highland Park75205 (1)
Irving75038 (1); 75061 (1)
Lancaster75134 (1)
Mesquite75149 (3); 75181 (3)
Richardson75080 (3); 75082 (1)
Seagoville75159 (2)
University Park75205 (1)
Unincorporated Dallas County-Near Wylie75146 (1); 75098 (1)

Data reflect information received at time of last update on 10/11/2019 and are subject to change.
 DCHHS will report additional positive human cases and mosquito pools as they are confirmed.