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State Municipal Index • SD
South Dakota Property Tax Drift Index
State Avg Drift Score
57/100
South Dakota Municipal Risk Briefing
State Comptroller & US Census Bureau (SD)August 2026
South Dakota maintains an average TaxDrift Score of 57/100 across monitored jurisdictions. Overlapping municipal bond issuances and assessment equalization rollbacks determine local millage carrying costs under statutory rules.
Population
919,318
Avg Effective Tax Rate
1.1%
Total Tracked Muni Debt
$4.1B
Counties Monitored
12
Statutory Tax Caps & Voter-Approval Rules (SD)
Annual tax levy increases limited to CPI plus new construction growth.
Audited Counties in South Dakota
South Dakota 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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