Over the next decade, 10 million of the nation’s 81 million people enrolled in Medicaid could lose their Medicaid coverage as cuts and changes from HR 1 are implemented. 

An analysis of Medicaid administrative data and data from the U.S. Census by independent research organization KFF shows that in U.S. congressional districts, Medicaid enrollment ranges from 52,900 (TX-24) to 496,500 (NY-15). Each member of the U.S. House of Representatives represents an average of roughly 760,000 to 762,000 people.

The October 8, 2026 report provides further breakdowns in the districts of those enrolled in Medicaid by adults aged 65+, people who have a disability, children, and other adults.  

When looking at the map of Medicaid enrollment by district in 2025, districts in California and New York accounted for the 13 districts with the highest counts of older adults, with House districts in Florida rounding out slots 14 and 15.

Medicaid enrollment across districts varies widely as a function of district population. Districts in Georgia, Kansas, and Texas all tied for lowest Medicaid enrollment at 7% of the population, while a district in New York topped 65% of the population enrolled in Medicaid.