Veterans Day Closure

Santa Ana City Hall will be closed and there will be no street sweeping on Tuesday, November 11, 2025, in observance of Veterans Day. Learn more.

Residential mosquito control treatments in Santa Ana on November 10-11

Posted on November 7, 2025


The Orange County Mosquito and Vector Control District has informed us of upcoming mosquito control efforts to address an increase in mosquito abundance and the risk of mosquito-borne disease in Santa Ana.

OCMVCD is scheduled to conduct treatments in the area around South Euclid Street and West McFadden Avenue on the dates and times below:

When: Monday, November 10, and Tuesday, November 11
Time: 3-5 a.m.
Treatment: Truck treatment with DeltaGard

*Note: Additional times and dates could be added and are subject to change. If numbers persist or disease is present, treatments may continue throughout the biting season.

Visit the OCMVCD website to view an interactive map where residents can enter an address to determine if they are in the treatment area. Learn more about mosquito control efforts here.

At the application rate, this product will not harm:

  • People or pets, even if present during the application
  • Fruit trees, vegetable gardens, or fishponds
  • There is no need to turn off air conditioning systems during the application
  • The product is applied at a time when bees are not active
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