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State Municipal Index • ID
Idaho Property Tax Drift Index
State Avg Drift Score
52/100
Idaho Municipal Risk Briefing
State Comptroller & US Census Bureau (ID)August 2026
Idaho maintains an average TaxDrift Score of 52/100 across monitored jurisdictions. Overlapping municipal bond issuances and assessment equalization rollbacks determine local millage carrying costs under statutory rules.
Population
1,964,726
Avg Effective Tax Rate
1.1%
Total Tracked Muni Debt
$8.8B
Counties Monitored
12
Statutory Tax Caps & Voter-Approval Rules (ID)
House Bill 292 allocates state sales tax surplus to property tax relief.
Audited Counties in Idaho
Idaho County Tax Drift Leaderboard
0 Jurisdictions Audited| Rank | Jurisdiction | Drift Score | Risk Tier | Muni Debt / Cap | CAD Lag Spread | 3-Yr Tax Shock | Audit |
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