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State Municipal Index • DE
Delaware Property Tax Drift Index
State Avg Drift Score
55/100
Delaware Municipal Risk Briefing
State Comptroller & US Census Bureau (DE)August 2026
Delaware maintains an average TaxDrift Score of 55/100 across monitored jurisdictions. Overlapping municipal bond issuances and assessment equalization rollbacks determine local millage carrying costs under statutory rules.
Population
1,031,890
Avg Effective Tax Rate
1.1%
Total Tracked Muni Debt
$4.6B
Counties Monitored
12
Statutory Tax Caps & Voter-Approval Rules (DE)
Court-ordered countywide reassessments resetting historic 1970s assessment baselines.
Audited Counties in Delaware
Delaware 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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