Prop 409 Hits Arizona Voters' Ballots in Maricopa County

October 17, 2025

Maricopa County voters are currently deciding on ArMA-endorsed Proposition 409, an $898M bond proposal that will allow Valleywise to expand and meet growing demand from the community. Valleywise is a safety-net hospital system, a national leader in burn and trauma care, and a cornerstone of physician training for our state.



Voting for Prop 409 strengthens the overall health of the entire community and ensures that critical services remain accessible.

If passed, Prop 409 will fund:

  • Expansions to primary and pediatric care,
  • A new 200-bed behavioral health hospital,
  • An outpatient specialty center on the main campus,
  • Growth in emergency services by expanding beds,
  • Enhancement of their residency program.


If passed, the bonds will be paid for though a secondary property tax that would cost Maricopa County taxpayers an estimated 11 cents per $100 of net Assessed Limited Property Value. For a determination on exactly how this would impact your annual property tax burden, check out this online calculator.

Ballots were mailed out for this all-mail election on October 8 and must be returned by October 28. For more information about the voting process and ballots, visit the Secretary of the State's website 
here. 

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