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Florida · local Marketplace intelligence

2027 ACA Marketplace in Nassau County

Use verified CMS county benchmarks to understand the local Marketplace before you compare your own coverage options. These measures provide context—not a personal quote.

8,530

2026 Marketplace plan selections reported by CMS.

88.9%

of selections received advance premium tax credits (APTC).

$1,033 → $248

Average monthly premium and average after APTC among the CMS county measures.

Local coverage context in Nassau County

Of the 8,530 Marketplace selections CMS reported for 2026, 1,172 were new consumers and 7,358 were returning consumers. CMS also reported 2,710 active reenrollees who switched plans.

CMS reported 4,687 Bronze and 3,548 Silver selections. It also reported 281 Gold selections. Metal level does not determine whether a particular plan fits your doctors, prescriptions or expected care.

For broader local context, Florida Department of Health's presentation of Census ACS 2024 data reports 6,986 uninsured residents under age 65 in Nassau County. These ACS estimates describe the county population; they are not Marketplace eligibility counts.

Population context: Florida Department of Health / U.S. Census Bureau ACS 5-year estimates, Table S2701 (2024).

Local premium benchmark

How the CMS averages compare

These county averages describe 2026 Marketplace selections; they are not a personal quote.

Average premium$1,033
Average after APTC$248

$785 lower on average among the reported measures (76% difference).

What this means when comparing coverage

CMS reports 7,581 APTC recipients in the county, with average APTC of $884. These are county-level historical Marketplace measures, not a quote or guarantee of your eligibility, premium, savings, plan availability, or provider network.

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Your next step

Turn the county benchmark into a personal coverage decision.

County averages cannot tell you what you qualify for. Check your household eligibility factors first, then review Marketplace savings and get personal help if you want someone to walk through the options with you.

Local evidence

What stands out in Nassau County's 2026 ACA Marketplace data?

CMS reports 8,530 plan selections in Nassau County. That ranks #40 of 67 Florida counties in this CoveragePath CMS dataset by Marketplace selections. This is enrollment context, not an estimate of how many county residents are eligible.

88.9% of reported selections received APTC. The average premium was $1,033 and the average after APTC was $248 — a $785 difference in these county-level CMS averages. These averages are not a personal quote or subsidy estimate.

For separate population context, the 2024 ACS uninsured estimate is 7.2%. ACS population insurance statistics and ACA Marketplace eligibility are different measures.

Local marketplace facts

What is available in Nassau County?

Plan selections by age
Under 35: 33.6% · 35-54: 37.4% · 55-64: 28.3% · 65+: 0.7% Source: CMS 2026 Open Enrollment Period County-Level PUF (sha256 2857e5932d4d)
Consumers eligible for cost-sharing reductions
3,248 of 8,530 (38.1%) Source: CMS 2026 Open Enrollment Period County-Level PUF (sha256 2857e5932d4d)
New, returning and auto-renewed consumers
13.7% new to the Marketplace, 86.3% returning; 3,177 (37.2% of all) were automatically re-enrolled Source: CMS 2026 Open Enrollment Period County-Level PUF (sha256 2857e5932d4d)
Plan selections by metal level
Bronze 54.9% · Silver 41.6% · Gold 3.3% · Platinum, catastrophic and other 0.2% (of 8,530 selections) Source: CMS 2026 Open Enrollment Period County-Level PUF (sha256 2857e5932d4d)

How Nassau County compares with Florida

Nassau County accounts for about 0.2% of the 2026 Marketplace selections in this Florida county dataset. These comparisons use the same sourced county inventory shown on this page.

The county average premium is +$227 versus the selection-weighted Florida county benchmark of $806.

The county average after APTC is +$142 versus the selection-weighted benchmark of $106.

The ACS county uninsured estimate is -4.3 points versus the population-weighted Florida county benchmark of 11.5%.

Method: premium benchmarks are weighted by Marketplace plan selections; the ACS uninsured benchmark is weighted by the ACS county population universe. Suppressed CMS values are not estimated.

Population coverage context

Health coverage context in Nassau County

7.2%

ACS estimate for the uninsured share of the Census S2701 population universe.

96,562

People in the ACS health-insurance coverage population universe for this county.

The U.S. Census Bureau's 2024 ACS 5-Year estimate describes population health-insurance coverage in Nassau County. It is useful local context, but it does not measure ACA Marketplace eligibility, enrollment, premiums, subsidies, or plan availability. The Marketplace figures above come separately from CMS.

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Population context source: U.S. Census Bureau, 2020-2024 ACS 5-Year Subject Table S2701 · County FIPS 12089

Source: Centers for Medicare & Medicaid Services, 2026 OEP County-Level Public Use File · Verified September 17, 2026 · County FIPS 12089