Regulation
Census Bureau proposes dropping race data and shrinking immigrant count for 2030
By Insurance Wire Staff, . Insurance Wire.
The Census Bureau published a proposed rule on September 10, 2026 that would make two structural changes to how the decennial census counts the U.S. population, according to a KFF issue brief released this month. The first change would prohibit questions on race and ethnicity from the census questionnaire. The second would redefine "usual residence" to exclude noncitizen immigrants who lack lawful permanent resident status, a category that includes undocumented immigrants as well as many lawfully present visa holders, from the count used to apportion seats in the U.S. House of Representatives.
KFF notes that the decennial census has collected race and ethnicity data in every cycle since 1790, and that the constitutional directive in Article I, Section 2 and the Fourteenth Amendment calls for an enumeration of "persons," not citizens. The Census Bureau has never before left noncitizens out of the apportionment base. President Trump sought, by executive action during his first term, to drop undocumented immigrants from the apportionment count for 2020, but the courts halted it before it ever took effect.
The proposed rule adds a further mechanism: the Census Bureau would use tax records to establish usual residence, which KFF says could result in people who do not file tax returns being excluded from the count entirely, beyond the noncitizen category.
For health insurers, managed care organizations and anyone whose book of business tracks Medicaid or Medicare enrollment, the downstream consequences are material. KFF explains that census data drive the allocation of federal funding across states, and that a state's poverty rate and share of rural residents are key factors in how those funds are directed. States and localities with higher concentrations of noncitizen immigrants would see their official population figures fall, which would reduce their federal funding baseline. An analysis by the Project on Government Oversight cited in the KFF brief found that more than 370 federal programs rely on census-derived data for funding formulas.
The loss of block-level race and ethnicity data, which KFF describes as the only data source granular enough to support health disparity research and anti-discrimination compliance, would also affect how carriers and health plans demonstrate compliance with equity requirements and how actuaries weight survey samples for underwriting and population health models.
The comment period closes October 13, 2026. After that, the Census Bureau must review and respond to all submissions before issuing a final rule. KFF notes that a final rule is likely to face legal challenges, and that a change in administration before the 2030 census could affect whether the rule is ever implemented.
The practical uncertainty for the industry is real but deferred. No insurer needs to reprice a product today, but any carrier or health plan that uses census-derived demographic data for market analysis, network adequacy filings, or federal program participation should be tracking the comment period and the litigation risk. The 2030 census is the target, but the data infrastructure decisions that depend on it, survey weighting, risk adjustment, disparity reporting, are made years in advance. If the rule survives legal challenge, the gap in granular demographic data would arrive well before 2030 in practical terms.
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