Back to National Overview
State Municipal Index • WI
Wisconsin Property Tax Drift Index
State Avg Drift Score
63/100
Wisconsin Municipal Risk Briefing
State Comptroller & US Census Bureau (WI)August 2026
Wisconsin maintains an average TaxDrift Score of 63/100 across monitored jurisdictions. Overlapping municipal bond issuances and assessment equalization rollbacks determine local millage carrying costs under statutory rules.
Population
5,910,955
Avg Effective Tax Rate
1.1%
Total Tracked Muni Debt
$26.6B
Counties Monitored
12
Statutory Tax Caps & Voter-Approval Rules (WI)
Municipal and county levy limits tied strictly to net new construction value.
Audited Counties in Wisconsin
Wisconsin County Tax Drift Leaderboard
0 Jurisdictions Audited| Rank | Jurisdiction | Drift Score | Risk Tier | Muni Debt / Cap | CAD Lag Spread | 3-Yr Tax Shock | Audit |
|---|