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FIPS: 12105•Rank #36 National•Rank #7 in FL
Polk County, FL
Forward-Looking Municipal Debt, Assessment Lag & Carrying Cost Audit
Elevated Tax Drift Risk
96% Conf.
Tax Drift Index
60.9/ 100
Elevated Drift Risk
Polk County Executive Risk Briefing
MSRB EMMA Disclosures & US Census BureauAugust 2026
Polk County carries a Elevated Tax Drift Score (60.9/100) based on $5,600 in overlapping municipal debt per capita and a +22% CAD assessment lag spread. Projected 3-year millage escalation of +0.16% (+16 bps) indicates an estimated +$1,051/yr escrow adjustment on median-priced properties.
Median Home: $310,000Median Income: $61,000Effective Tax: 1.1%
Municipal Debt Per Capita
$5,600
9.2% of Median Income
CAD Valuation Lag
+22.0%
Assessed Value trailing Market HPI
3-Yr Millage Escalation
+16 bps
Effective Rate: 1.1% → 1.2%
Projected Annual Escrow Shock
+$1,051/yr
Estimated on median assessed home
Interactive Property Tax & Escrow Shock Simulator
Model forward-looking ad valorem tax obligations and monthly escrow adjustments for a specific parcel in Polk County, FL.
$310,000
$0
Current Annual Tax
$3,348
@ 1.08% eff. rate
Year 3 Projected Tax
$4,399
@ 1.24% eff. rate
Net Escrow Increase
+$1,051/yr
+$88/mo mortgage escrow
Projected Shock Attribution Breakdown+16 bps rate shift
1. Muni Bond Debt Service
+9 bps
I&S bond amortization
2. Operating Deficit Drift
+7 bps
M&O budget expansion
3. CAD Valuation Catch-up
+$479/yr
+$44,330 assessed base
Overlapping Taxing Jurisdictions & Debt Obligations
Breakdown of autonomous debt issuers assessing ad valorem property taxes on parcels within Polk County.
| Entity Name | Entity Type | Outstanding Bond Debt | Debt / Student or Cap | Adopted Millage |
|---|---|---|---|---|
| Polk County Public Schools | ISD | $850.0M | $8,000 | 0.610% |
5-Year Historical Drift Score & Effective Rate Trajectory
2022
54
1.0% eff.
2023
56
1.0% eff.
2024
58
1.1% eff.
2025
60
1.1% eff.
2026
60.9
1.1% eff.
Statutory Constraint & Legislative Policy
I-4 corridor growth between Tampa and Orlando creates steady student enrollment gains requiring school bond issuance.
Data Provenance & Audit Citations