Why It Matters
Federal officials have proposed narrowing the apportionment count for the next enumeration to exclude foreign citizens who are not United States citizens or lawful permanent residents, a Congressional Research Service (CRS) report finds, placing 2030 census citizenship rules at the center of a representation fight.
Published September 28, it describes a September 10 notice of proposed rulemaking, with comments due October 13.
If finalized, noncitizens historically included in the seat-division tally would be excluded, which could shift House seats.
The stakes place Census Bureau rulemaking against congressional direction under the enumeration clause, leaving lawmakers with oversight and possible legislative responses.
The Big Picture
The Constitution requires an actual enumeration every 10 years as Congress shall by law direct to set apportionment.
The Census Act of 1790 introduced usual residence to count each person once in the right place, defined for 2020 as where a person lives and sleeps most of the time, which may differ from legal or voting residence.
The 2030 draft also covers United States military and federal civilian employees abroad, persons born or dying on or after census day, persons in detention facilities, and dependents, among others.
To assess legal status, planners are weighing federal agency files plus state, local, and tribal records plus third-party commercial data, and signaled a possible citizenship item on the questionnaire.
All but one enumeration between 1820 and 1950 included some citizenship item, the long form asked a subset of households about citizenship between 1970 and 2000, that product was later replaced by the American Community Survey, which now asks about citizenship, and no short-form item has gone to most households since 1950.
The first Trump administration plan to add such an item was blocked when the Supreme Court found the Commerce Secretary rationale tied to Voting Rights Act enforcement seemed contrived, though such an item could be allowed with appropriate rationale.
A 2019 trial found no statistically significant difference in overall self-response rates with the item, but statistically significantly lower rates in some areas and subgroups, including some Hispanic respondents, while a 2026 trial using the survey questionnaire for all respondents included such an item with findings not yet released.
Some members have introduced measures to require an item and exclude noncitizens from the division of seats while others have introduced measures to bar an item, with none of the introduced bills on the topic signed into law.
The Bottom Line
The administration would need to clarify the objective and distinguish between collecting citizenship information for statistical or administrative purposes and using citizenship to determine the population count for apportionment.
Drafters would need to explain legal authority, data quality protections, confidentiality safeguards, and operational testing, including what commercial sources might be tapped and how mismatched records would be handled.
Timing compounds the challenge, since late changes to forms, systems, linkage procedures, and public guidance increase operational and legal risk before the 2030 enumeration.
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