California was the largest single interstate destination, with 8,477 named returns. That single-state ranking survives the reviewed suppression bounds.
Matched filing-address returns are not individual people. Class and amount use year-2 income. This earlier transition differs from the dividend comparison; aggregate AGI does not identify dividend income, tax motive or a causal mechanism. Region-only rows cannot be assigned to states.
What the evidence supports
A robust single-state result, a limited combined comparison
Nevada, Florida and Texas have 5,459 identified returns combined. Suppressed region-only rows make their combined comparison with California indeterminate.
45 named destination jurisdictions are shown. Region-only suppression buckets remain separate.
The files do not establish disproportionate destination representation or tax motive.
Primary sourceAll 45 named destination jurisdictions and four region-only suppression buckets. California remains the largest single destination under the reviewed bounds. Suppression prevents a definitive comparison with Nevada, Florida and Texas combined.