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Health insurance in Mercer County, New Jersey

13,664 people here have no coverage and earn in the range a premium tax credit is built for — 47% of everyone uninsured in the county.

Reviewed September 4, 2026 · 2024 Census data

13,664Uninsured, subsidy range 138–400% of poverty
9.4%Uninsured, under 65 29,174 people
7.5%Uninsured, 50 to 64 5,563 people
310,492Under-65 residents 197th of 3,143

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 29,174 people without coverage in Mercer County, 13,664 — 47% — earn inside the premium tax credit range. That is near the 51% national median. Within that band itself, 14.3% have no coverage.

How many people here have no coverage

9.4% of Mercer County's 310,492 under-65 residents have no health coverage — 29,174 people. That is close to the New Jersey rate of 9.0%, and puts Mercer County in the lower half of the 3,143 counties measured nationally (1,708th).

Who falls under the Medicaid line

9,170 of Mercer County's uninsured — 31%, close to the 31% typical nationally — earn under $22,025 a year, which in New Jersey is Medicaid territory rather than marketplace territory.

The years before Medicare

5,563 people aged 50 to 64 in Mercer County have no coverage, a rate of 7.5% — close to the 9.4% across all under-65 residents here. Age-rated premiums make this the most expensive group to cover before Medicare.

Mercer County against New Jersey

Mercer County is the 12th largest of the 19 New Jersey counties we publish. Its uninsured rate tracks the state almost exactly and its subsidy-band share matches the state. Coverage among 50 to 64 year olds matches the New Jersey picture.

Mercer CountyNew Jersey National median
Uninsured, under 659.4% 9.0%9.8%
Uninsured in the subsidy band13,664 330,684—
Subsidy band as a share of uninsured47% 48% 51%
At or below 138% of poverty31% 28% 31%
Uninsured, 50 to 647.5% 7.0% 8.1%

Counties of a similar size

CountyUninsured In the subsidy bandShare
Somerset County6.4%8,71347%
Gloucester County5.2%6,27248%
Burlington County5.6%10,41450%
Atlantic County9.7%10,52451%

What a plan actually costs in Mercer County

These figures say how many people here a credit would reach. What it would be worth to you depends on your age, household and income — a licensed agent can work that out on the call.

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