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State Municipal Index • PA
Pennsylvania Property Tax Drift Index
State Avg Drift Score
67/100
Pennsylvania Municipal Risk Briefing
State Comptroller & US Census Bureau (PA)August 2026
Pennsylvania maintains an average TaxDrift Score of 67/100 across monitored jurisdictions. Overlapping municipal bond issuances and assessment equalization rollbacks determine local millage carrying costs under statutory rules.
Population
12,972,008
Avg Effective Tax Rate
1.8%
Total Tracked Muni Debt
$32.2B
Counties Monitored
3
Statutory Tax Caps & Voter-Approval Rules (PA)
Act 1 index limits school district tax rate increases to average weekly wage growth.
Audited Counties in Pennsylvania
Pennsylvania County Tax Drift Leaderboard
3 Jurisdictions Audited| Rank | Jurisdiction | Drift Score | Risk Tier | Muni Debt / Cap | CAD Lag Spread | 3-Yr Tax Shock | Audit |
|---|---|---|---|---|---|---|---|
| #1 | Philadelphia County, PA | 82.9 | High | $9,800 | +25.0% | +$1,379/yr | View |
| #2 | Allegheny County, PA | 63.4 | Elevated | $8,100 | +20.5% | +$1,494/yr | View |
| #3 | Montgomery County, PA | 54.7 | Elevated | $7,900 | +21.0% | +$2,349/yr | View |