Health Coverage by Texas County

Browse by city instead

Prefer to start with your city rather than your county? These guides cover the same ground — ACA Marketplace, Medicare Advantage, cost, and enrollment timing — built around 25 of Texas's largest cities.

• Houston
• San Antonio
• Dallas
• Austin
• Fort Worth
• El Paso
• Arlington
• Corpus Christi
• Plano
• Laredo
• Lubbock
• Irving
• Garland
• Frisco
• McKinney
• Killeen
• Pasadena
• McAllen
• Mesquite
• Midland
• Waco
• Carrollton
• Denton
• Round Rock
• Pearland

Why coverage varies by county

ACA Marketplace and Medicare Advantage plans are priced and sold by county-based rating areas, which means the same insurer can offer a completely different premium, network, or plan lineup just a few miles away across a county line. Carriers decide which counties to enter each year based on the local provider networks they can contract with, which is why a fast- growing suburban county might suddenly gain several new carriers in a single year while a neighboring rural county sees little change.

Metro vs. rural coverage differences

Texas's largest metro counties — Harris, Dallas, Tarrant, Bexar, and Travis among them — generally have the deepest carrier competition and the widest choice between HMO and PPO plan types. Smaller and more rural counties often have fewer carriers active at all, which can mean higher premiums and narrower networks, making it especially important to confirm your specific doctors are covered before enrolling. If your county isn't listed below, this same logic still applies — a licensed agent can look up exactly what's available at your address.

How to use these guides

Each county page below covers the same core ground: typical ACA Marketplace carrier availability, the strength of the local Medicare Advantage market, the major employers and industries shaping local group coverage, enrollment timing, and whether an HMO or PPO tends to fit better given the local network depth. Start with your own county if it's listed, or the nearest major metro if it isn't, since coverage patterns are usually similar for neighboring counties within the same metro area.

Planning a move within Texas?

If you're relocating to a different Texas county, your ACA Marketplace or Medicare Advantage plan doesn't automatically transfer with you, since plans are sold by county-based rating area. A move is also a qualifying life event that opens a Special Enrollment Period, so it's worth lining up your new coverage before the move rather than assuming your current plan will simply keep working at the new address.