TaxDriftIndex
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FIPS: 51059Rank #90 NationalRank #1 in VA

Fairfax County, VA

Forward-Looking Municipal Debt, Assessment Lag & Carrying Cost Audit

Moderate Tax Drift Risk
96% Conf.
Tax Drift Index
47.7/ 100
Moderate Drift Risk
Fairfax County Executive Risk Briefing
MSRB EMMA Disclosures & US Census BureauAugust 2026

Fairfax County carries a Moderate Tax Drift Score (47.7/100) based on $7,600 in overlapping municipal debt per capita and a +19.5% CAD assessment lag spread. Projected 3-year millage escalation of +0.12% (+12 bps) indicates an estimated +$2,042/yr escrow adjustment on median-priced properties.

Median Home: $730,000Median Income: $137,000Effective Tax: 1.1%
Municipal Debt Per Capita
$7,600
5.5% of Median Income
CAD Valuation Lag
+19.5%
Assessed Value trailing Market HPI
3-Yr Millage Escalation
+12 bps
Effective Rate: 1.1%1.2%
Projected Annual Escrow Shock
+$2,042/yr
Estimated on median assessed home

Overlapping Taxing Jurisdictions & Debt Obligations

Breakdown of autonomous debt issuers assessing ad valorem property taxes on parcels within Fairfax County.

Entity NameEntity TypeOutstanding Bond DebtDebt / Student or CapAdopted Millage
Fairfax County Public Schools (FCPS)ISD$3.2B$17,80068.000%

5-Year Historical Drift Score & Effective Rate Trajectory

2022
42
1.1% eff.
2023
44
1.1% eff.
2024
45
1.1% eff.
2025
47
1.1% eff.
2026
47.7
1.1% eff.
Statutory Constraint & Legislative Policy

Northern Virginia county funding extensive transit (Silver Line) and FCPS educational facility modernization.

Data Provenance & Audit Citations