Health Insurance in Bexar County, Texas: Your 2026 Marketplace Guide

Updated July 2026 · Texas-Plans.com — Licensed Health Insurance Producer (NPN #21249133)

More than 234,000 Bexar County residents are currently enrolled in ACA marketplace plans — yet roughly 18 percent of the county's population under age 65 remains uninsured. That gap matters in a county of over 2.1 million people: it means hundreds of thousands of San Antonio-area residents are either paying full cost for care out of pocket or going without coverage entirely. For many of them, a marketplace plan with federal premium assistance would cost far less than they assume. This guide covers what plans are available in Bexar County for 2026, how to figure out what you qualify for, and what to watch for when comparing options.

What Bexar County Residents Often Get Wrong About Health Coverage

The most common misconception is that health insurance is either through an employer or unaffordable — and that if you lose a job or work independently, you're simply out of luck. That was largely true before the ACA, but it hasn't been accurate for over a decade. A second misconception is that marketplace plans come with wide provider access like traditional PPOs. In Texas, marketplace plans are HMOs and EPOs — they work within defined networks, and you need to verify that your doctors and hospitals are in-network before enrolling.

A third misunderstanding — particularly relevant in Bexar County given the significant military presence at Joint Base San Antonio — is that TRICARE status resolves coverage for everyone in a household. Active duty personnel are covered by TRICARE, but individual family members who are not themselves entitled to TRICARE may need separate marketplace coverage. Each person's eligibility is evaluated separately.

Finally, many residents in the coverage gap — adults earning below 100% of the federal poverty level who don't qualify for Medicaid — assume there is a marketplace option waiting for them. There isn't, and understanding that distinction early prevents wasted time and confusion during enrollment season.

How to Find the Right Plan in Bexar County

Start by establishing your income picture. The ACA's premium tax credits are available to households earning between 100% and 400% of the federal poverty level — and enhanced subsidies that have been in place for the past several years have extended meaningful assistance well above that threshold for many households. A single adult earning $35,000 a year, or a family of four earning $80,000, will typically qualify for a subsidy that substantially reduces their monthly premium.

Step 1 — Determine Medicaid eligibility first. Texas has not expanded Medicaid under the Affordable Care Act. For adults without dependent children, the Medicaid income threshold is effectively zero — standard Medicaid in Texas does not cover them regardless of income. For parents with dependent children, Medicaid may be available at income levels below 15% of the federal poverty level. If you are in this situation, check eligibility through the Texas Health and Human Services Commission before assuming a marketplace plan is your route.

Step 2 — Identify your coverage gap risk. If your income is below 100% of the federal poverty level and you do not qualify for Medicaid under Texas's rules, you fall into what is called the coverage gap. You are not eligible for marketplace premium tax credits, and Medicaid won't cover you. This is a direct consequence of Texas not expanding Medicaid. Community health centers in Bexar County — including those affiliated with University Health — offer sliding-scale services that can serve as a partial bridge, but they are not a substitute for insurance.

Step 3 — Use HealthCare.gov during open enrollment. Texas participates in the federally facilitated marketplace, so enrollment happens at HealthCare.gov — not through a state-run site. The annual open enrollment window runs November 1 through January 15. If you miss that window, you can only enroll during a Special Enrollment Period triggered by a qualifying life event such as job loss, marriage, birth of a child, or a permanent move.

Step 4 — Compare plans by network, not just premium. In Bexar County's HMO and EPO marketplace, your out-of-pocket exposure is determined by whether your providers are in-network. A plan with a slightly higher premium that includes your preferred hospital or specialist may cost significantly less over the year than a cheaper plan that doesn't.

Carriers and Plan Options in Bexar County

Bexar County is one of the most competitive ACA marketplace markets in Texas. Fourteen carriers offer plans in the county for 2026:

• Ambetter
• Baylor Scott and White Health Plan
• Blue Cross and Blue Shield of Texas
• CHRISTUS Health Plan
• Cigna
• Community First Health Plans
• Community Health Choice
• Harbor Health
• Imperial Insurance Companies
• Molina Healthcare
• Oscar Health
• Sendero Health Plans
• United Healthcare
• Wellpoint

All marketplace plans in Bexar County are structured as HMOs or EPOs — there are no PPO plans available on-exchange in Texas. This makes network selection the most consequential decision in the enrollment process.

Community First Health Plans has deep roots in the San Antonio area and is headquartered locally, which often translates into strong relationships with Bexar County providers. CHRISTUS Health Plan is affiliated with CHRISTUS Health, giving enrollees in that plan particularly direct access to CHRISTUS Santa Rosa Hospital and the broader CHRISTUS system across San Antonio. Baylor Scott and White Health Plan connects members to one of the state's major health systems. Ambetter and Molina Healthcare offer some of the most cost-competitive bronze and silver tier options and maintain in-network agreements with University Health, among the county's leading public hospital systems.

Bexar County's major hospital systems include University Health, CHRISTUS Santa Rosa Hospital, Baptist Health System, and Methodist Health System. When comparing plans, verify that your preferred system appears in the plan's network directory before enrolling — network agreements can and do change between plan years.

Common Mistakes That Cost Bexar County Residents Money

Choosing the lowest monthly premium without checking the network. In an HMO or EPO, out-of-network care is typically not covered at all except in emergencies. A plan that saves you $50 per month but excludes your primary care physician will cost far more than that difference the first time you need care.

Missing open enrollment. The November 1 through January 15 window is firm. If you miss it and don't have a qualifying life event, you'll be uninsured for the rest of the plan year. Set a calendar reminder in October each year.

Not updating income estimates after a life change. Marketplace tax credits are based on projected annual income. If your income drops or rises significantly mid-year — a job change, a new freelance contract, a spouse returning to work — update your application at HealthCare.gov promptly. Failing to report higher income can result in having to repay credits when you file taxes.

Assuming TRICARE covers everyone in the household. As noted above, TRICARE covers the active duty service member and, in most cases, dependents who are enrolled. However, eligibility varies by the type of TRICARE coverage and the family member's own status. Do not assume a family member is covered without confirming their individual enrollment in TRICARE.

Not checking for cost-sharing reductions. If your income falls between 100% and 250% of the federal poverty level, you may qualify for cost-sharing reductions (CSRs) that lower your deductible and out-of-pocket maximum significantly. These are only available on Silver-tier plans. Many people who qualify for CSRs choose a Bronze plan because it has a lower premium, not realizing they're leaving substantial cost-sharing relief on the table.

Frequently Asked Questions

Get Your Free Quote