Proposition 425 - Permanent Base Adjustment
November 3, 2026 · Pima County, Arizona · County
How do we calculate vote impact?
Vote impact = representation (how much weight one vote carries here, the smaller the district's population, the higher the representation) + decisiveness (how likely this race is to be close, based on past results and number of candidates).
Representation: Low · 23 out of 100
This district is large for its type, so each vote is a smaller slice of the outcome. About 1,060,490 people live here.
score = 100 × ln(largest population ÷ this district's) ÷ ln(largest ÷ smallest), rounded to 2 decimals = 100 × ln(4,559,748 ÷ 1,060,490) ÷ ln(4,559,748 ÷ 9,409) = 23.59, comparing counties in AZ (grades: 66+ high, 33+ average, otherwise low)
Ballot measure: +1 step
Your vote sets the policy directly, so the rating gets a one-step boost.
Low representation + a ballot-measure boost → Average vote impact.
Ballot Measure
Government Spending Reduction (against)
Proposition 425 would permanently raise the 1979-80 spending base used to calculate Pima County's state-imposed expenditure limit by $70 million. With population and inflation adjustments, the county estimates its fiscal year 2027-28 limit would rise from about $817.1 million to about $1.43 billion. The measure would allow, but not require, added spending for any local budget purpose using state and existing local revenue.
A YES vote means
A yes vote would permanently raise Pima County's base expenditure limit and allow the county to spend more of its available state and local revenue beginning in fiscal year 2027-28.
A NO vote means
A no vote would leave Pima County's current expenditure-base formula and resulting spending limit unchanged.
Source: pima.gov
Election sources
Source: pima.gov
Source: pima.gov