To become a member, you must be sponsored by a Community Outreach Posse board member. You must complete an application, pass a background check and pay the required fees and annual dues. For additional information, send an email to

Are donations to the Community Outreach Posse tax deductible?

With over fifty different Posses, there are many ways in which the residents of Maricopa County are helping support their local Officers.

For more information please visit

Yes, the posse is established as a public charity under section 501(c)3 of the Internal Revenue Code. The tax ID of the posse is 20-4937720.

Frequently Asked Questions:


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How can I become a member of the Community Outreach Posse?

What is the Maricopa County Sheriff's Office Community Outreach Posse?

(Download and print both applications, single-sided only.)

Where can I get information about other MSCO Posses? 

The Community Outreach Posse is a nonprofit that provides industry expertise, training support and funding to the Maricopa County Sheriff's Office and its deputies. The posse raises funding as a 501c3 with public / member donations and fundraising events. Every dollar raised goes directly to supporting the Sheriff's Office, Deputies training and the families of fallen Deputies working in the line of duty. The MCSO Community Outreach Posse supports the MCSO Memorial Fund.