Health insurance in Nassau County, New York

Reviewed September 4, 2026 · 2024 Census data

Source: US Census Small Area Health Insurance Estimates, 2024 release. Income bands are measured against the federal poverty level.

How many here a premium tax credit would reach

Of the 47,373 people without coverage in Nassau County, 20,487 — 43% — earn inside the premium tax credit range. That is under the 51% median, so proportionally more of Nassau County's uninsured sit outside the credit — below it or above the cliff. Within that band itself, 7.3% have no coverage.

Comparatively few people go uncovered

4.3% of Nassau County's 1,104,598 under-65 residents have no health coverage — 47,373 people. That is below the New York rate of 5.9%, and puts Nassau County in the bottom quarter of the 3,143 counties measured nationally (3,103rd).

Relatively few are under the Medicaid line

8,708 of Nassau County's uninsured — 18%, below the 31% typical of counties nationally — earn under $22,025 a year, which in New York is Medicaid territory rather than marketplace territory.

The years before Medicare

11,903 people aged 50 to 64 in Nassau County have no coverage, a rate of 4.2% — close to the 4.3% across all under-65 residents here. Age-rated premiums make this the most expensive group to cover before Medicare.

Nassau County against New York

Nassau County is the 6th largest of the 27 New York counties we publish. Its uninsured rate runs 1.6 points lower than New York overall and 3 points fewer of its uninsured sit in the subsidy band than statewide. Coverage among 50 to 64 year olds matches the New York picture.

Counties of a similar size

All New York counties · How the credit works · Enrollment dates