Clay County is Jacksonville's southern suburban collar — a sprawling community of planned neighborhoods, waterfront communities along Fleming Island, rural homesteads near Middleburg, and the county seat of Green Cove Springs on the St. Johns River. The county has grown steadily for decades, attracting families priced out of Duval County who want suburban square footage within commuting distance of Jacksonville's job centers.
Naval Air Station Jacksonville's proximity has given Clay County a significant military and veteran population. Active duty service members and their dependents typically use TRICARE rather than ACA marketplace plans. But the military community also generates a substantial population of veterans, separated servicemembers, military spouses, and civilian contractors whose coverage situations are more varied — and who may need to navigate the ACA marketplace at various life transitions.
Clay County is part of the Jacksonville metro ACA rating area, giving residents access to a competitive set of carriers compared to rural North Florida counties.
Orange Park Medical Center (HCA Florida Orange Park Hospital) is Clay County's primary acute care facility. For specialist care, oncology, cardiac surgery, and pediatric services, Clay County residents use the full Jacksonville hospital system — UF Health Jacksonville, Mayo Clinic Florida, Baptist Medical Center, and Ascension St. Vincent's. When evaluating ACA plans, confirm in-network coverage at both Orange Park Medical Center and the Jacksonville facilities you're most likely to need.
Health insurance in Clay County
The military dimension of Clay County's demographic profile creates specific health insurance questions. Active duty members and their enrolled dependents use TRICARE, which is considered qualifying coverage under the ACA. Veterans with VA healthcare coverage are also considered covered. These populations generally do not need ACA marketplace plans.
However, Clay County has a significant population of veterans who are not enrolled in VA healthcare, military spouses who work and may have separate coverage needs, and former service members who have transitioned out of the military and lost TRICARE eligibility. For all of these residents, the ACA marketplace is an important option. Transitions out of TRICARE typically trigger a Special Enrollment Period — meaning you don't have to wait for the November open enrollment window.
| Annual Income (Single Adult) | % of FPL (2026) | Subsidy Status | Est. Monthly Cost (Silver, age 40) |
|---|---|---|---|
| Below $15,960 | Below 100% | Florida Medicaid gap — no ACA subsidy | Full premium (~$430) |
| $15,960 – $23,940 | 100–150% | Maximum subsidy + Enhanced Silver CSRs | $0 – $30/month |
| $23,941 – $31,920 | 150–200% | Strong subsidy + Enhanced Silver CSRs | $30 – $75/month |
| $31,921 – $47,880 | 200–300% | Meaningful subsidy | $75 – $175/month |
| $47,881 – $63,840 | 300–400% | Moderate subsidy | $175 – $295/month |
| Above $63,840 | 400%+ | May qualify if premium > 8.5% of income | Varies |
Estimates for a single 40-year-old on a benchmark Silver plan in the Jacksonville metro rating area. Not guaranteed quotes — verify at HealthCare.gov.
Clay County is bordered by Duval County (Jacksonville) to the north and Nassau County to the northeast. See our guides for Duval County health insurance and Nassau County health insurance for comparison of Jacksonville metro ACA options across the suburban ring.
Ready to compare Clay County health insurance plans? A licensed Florida agent can review every carrier at your zip code — subsidy calculation, network verification, and enrollment — at no cost to you.
Get a Free QuoteSee our Florida ACA Guide, Florida ACA Plans overview, and health insurance by county. Browse plans at HealthCare.gov.