Arizona Association of Counties

Arizona Association of Counties 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.

06/12/2026

The faces of AACo!

Join federal, state, county and local tax professionals from all across Arizona for the 107th Arizona Tax Conference, Au...
06/11/2026

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/

SB1664 passes House Third Read by a 53-1 vote. Thank you to the legislators and county officials who worked to support t...
06/09/2026

SB1664 passes House Third Read by a 53-1 vote. Thank you to the legislators and county officials who worked to support this important legislation.

Happy 10th AACo Anniversary, Gideon Wagner! Thank you for 10 years of dedication and service to AACo. Your efforts help ...
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.

This Memorial Day, the Arizona counties honor those who have served and protected our country. Let us never forget their...
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.

Join federal, state, county and local tax professionals from all across Arizona for the 107th Arizona Tax Conference, Au...
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/

Join AACo and recognize May as
05/13/2026

Join AACo and recognize May as

Counties are on the front lines of supporting mental and behavioral health services in communities nationwide. During Me...
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:

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...

Address

1910 W Jefferson Street
Phoenix, AZ
85009

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+16022526563

Website

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