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State Municipal Index • OR
Oregon Property Tax Drift Index
State Avg Drift Score
52/100
Oregon Municipal Risk Briefing
State Comptroller & US Census Bureau (OR)August 2026
Oregon 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
4,233,358
Avg Effective Tax Rate
1.1%
Total Tracked Muni Debt
$19.1B
Counties Monitored
12
Statutory Tax Caps & Voter-Approval Rules (OR)
Measures 5 and 50 cap maximum assessed value (MAV) growth at 3% per year.
Audited Counties in Oregon
Oregon 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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