Founded in 1968, AACo provides essential services to the state's counties.
The Arizona Association of Counties (AACo) is the only state organization that represents all of the county officials and the governments they serve in the State of Arizona. AACo advances issues with the state and federal government, improves the public understanding of county government, assists counties in finding and sharing innovative solutions through education and research and provides value-added services to save counties and taxpayers money.
06/01/2026
Join federal, state, county and local tax professionals from all across Arizona for the 107th Arizona Tax Conference, August 11-14, 2026 in Prescott, Arizona at the Prescott Resort and Conference Center.
Click below to register!
https://azcounties.org/arizona-tax-conference/
06/01/2026
Happy 10th AACo Anniversary, Gideon Wagner!
Thank you for 10 years of dedication and service to AACo. Your efforts help support our members and events, and your contributions are greatly appreciated. Congratulations on this important milestone, and thank you for all that you do.
05/25/2026
This Memorial Day, the Arizona counties honor those who have served and protected our country. Let us never forget their sacrifice, courage, and commitment.
05/14/2026
Join federal, state, county and local tax professionals from all across Arizona for the 107th Arizona Tax Conference, August 11-14, 2026 in Prescott, Arizona at the Prescott Resort and Conference Center.
Click below to register!
https://azcounties.org/arizona-tax-conference/
05/13/2026
Join AACo and recognize May as
05/11/2026
Counties are on the front lines of supporting mental and behavioral health services in communities nationwide. During Mental Health Awareness Month, counties continue advocating for stronger resources and expanded access to care.
Click here to learn more:
Mental Health Awareness Month: County Participation Toolkit By showcasing how county governments provide vital behavioral health services and resources and by advocating for key mental health reforms—including repealing harmful exclusionary Medicaid policies, bolstering local crisis response infrastructure, supporting the behavioral health workforce, and e...
05/01/2026
Voting is now open for Best of the Capitol! Click below to vote for AACo Executive Director Jennifer Marson for Best Government Lobbyist.
Additionally, AACo Board Members Jeanne Kentch and Dana Lewis are nominated for Best Elected Official (Republican)
https://tinyurl.com/mu8p88hr
04/30/2026
Wrapping up National County Government Month with an official proclamation from Governor Katie Hobbs. The proclamation recognizes the essential role Arizona’s counties play in serving communities across the state.
04/29/2026
County sheriffs work every day to keep communities safe by preserving peace and order across Arizona while managing and operating 27 county detention and holding facilities
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