Mariati Messinger
Trustee Representing Hercules
District History
protecting public
pealth
since 1927
County citizens voted to create the Contra
Costa Mosquito Abatement District in 1926,
and we opened our doors in 1927.
District History
protecting public
pealth
since 1927
In 1993, Contra Costa County transferred its rat
and rabies risk reduction programs to us, and
that’s when we changed our name to Contra
Costa Mosquito and Vector Control District
(District).
District History
protecting public
pealth
since 1927
A Vector is any insect or other animal that
can transmit disease or cause discomfort
to people or other animals
Special District
protecting public
pealth
since 1927
Funding
Property taxes
Benefit Assessments
No additional charge for county residents who request
a District service.
District Facts
protecting public
pealth
since 1927
Board of Trustees:
Represent the best interests of your community,
ensure the delivery of essential local services
and infrastructure, and faithfully serve the public
good while upholding the law.
Source: CSDA Board Member Handbook
District Services
protecting public
pealth
since 1927
Mosquitoes - Mosquitofish
Rats/mice
Skunks
Ticks
Yellowjackets
Bees
Hercules Service Requests
—
12 Months
protecting public
pealth
since 1927
June 2025 – June 2026
Mosquitoes: 4
Mosquitofish: 2
Unmaintained Swimming Pools: 3
Rats & mice: 6
Skunks: 16
Ticks IDs: 0
Ground-nesting Yellowjackets: 18
Bees: 1
Invasive New Mosquito
protecting public
pealth
since 1927
Invasive Aedes aegypti mosquito found
in Antioch three years in a row.
How to Request a District Service
protecting public
pealth
since 1927
Contact the District
Contra Costa Mosquito and Vector Control District
925-685-9301
www.ContraCostaMosquito.com