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FIPS: 17089•Rank #47 National•Rank #3 in IL
Kane County, IL
Forward-Looking Municipal Debt, Assessment Lag & Carrying Cost Audit
Elevated Tax Drift Risk
96% Conf.
Tax Drift Index
58.9/ 100
Elevated Drift Risk
Kane County Executive Risk Briefing
MSRB EMMA Disclosures & US Census BureauAugust 2026
Kane County carries a Elevated Tax Drift Score (58.9/100) based on $8,200 in overlapping municipal debt per capita and a +20.8% CAD assessment lag spread. Projected 3-year millage escalation of +0.29% (+29 bps) indicates an estimated +$2,140/yr escrow adjustment on median-priced properties.
Median Home: $330,000Median Income: $91,000Effective Tax: 2.4%
Municipal Debt Per Capita
$8,200
9.0% of Median Income
CAD Valuation Lag
+20.8%
Assessed Value trailing Market HPI
3-Yr Millage Escalation
+29 bps
Effective Rate: 2.4% → 2.7%
Projected Annual Escrow Shock
+$2,140/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 Kane County, IL.
$330,000
$0
Current Annual Tax
$7,920
@ 2.40% eff. rate
Year 3 Projected Tax
$10,060
@ 2.69% eff. rate
Net Escrow Increase
+$2,140/yr
+$178/mo mortgage escrow
Projected Shock Attribution Breakdown+29 bps rate shift
1. Muni Bond Debt Service
+12 bps
I&S bond amortization
2. Operating Deficit Drift
+17 bps
M&O budget expansion
3. CAD Valuation Catch-up
+$1,071/yr
+$44,616 assessed base
Overlapping Taxing Jurisdictions & Debt Obligations
Breakdown of autonomous debt issuers assessing ad valorem property taxes on parcels within Kane County.
| Entity Name | Entity Type | Outstanding Bond Debt | Debt / Student or Cap | Adopted Millage |
|---|---|---|---|---|
| Elgin School District U-46 | ISD | $620.0M | $17,500 | 1.410% |
5-Year Historical Drift Score & Effective Rate Trajectory
2022
52
2.3% eff.
2023
54
2.3% eff.
2024
56
2.4% eff.
2025
58
2.4% eff.
2026
58.9
2.4% eff.
Statutory Constraint & Legislative Policy
Fox River Valley municipalities balance municipal bond debt service against school unit district levies.
Data Provenance & Audit Citations