Proposed U.S. census changes could be catastrophic for public health

A set of proposed rules for the 2030 decennial census would fundamentally change who is counted and where, with three untested shifts: count only citizens and lawful permanent residents (excluding many international students, work visa holders, refugees, asylum seekers, and undocumented immigrants); redefine residence to the place lived most between Jan. 3 and April 1 and tie it to tax addresses (likely moving college students and seasonal residents to parents’ or winter homes); and eliminate questions about race, ethnicity, and sexual orientation. These changes are presented as administrivia but are framed here as an unconstitutional, partisan maneuver to alter apportionment and political power. Because public-health rates use census-derived denominators, selectively shrinking counts will produce abrupt, artificial rises in morbidity and mortality rates in 2030 - uneven across states and concentrated among college-age people, retirees, people of color, and immigrants - without any real change in health.

The practical harms extend far beyond rate artifacts: federal funding formulas, hospital and clinic planning, emergency response mapping, disaster displacement estimates, disease-spread assessments, and virtually all population-based surveys rely on accurate census-based sampling frames and racial/ethnic data. Erasing race/ethnicity would obscure entrenched and intersecting inequities - illustrated by maternal mortality patterns that vary by race and education - and remove accountability for preventable harms. The changes were untested, initially opened for only 33 days of comment (now extended to Nov. 2), and must be blocked, the author argues; the warning comes from Nancy Krieger, social epidemiology professor at Harvard.