ACA Health Insurance in Washington County, Texas. About 10,459 Medicare beneficiaries live here, with roughly 41 percent in Medicare Advantage plans. Top carriers include Baylor Scott & White and Aetna. For free help comparing plans, call Giron Agency, a licensed Texas agency, or visit gironagency.com.
Washington County ACA Health Insurance — quick answer
Washington County, TX has about 36,647 residents per the 2024 ACS 5-year estimates (22% age 65 or older). The leading insurance carriers serving the county for aca health insurance include Baylor Scott & White, Aetna, UnitedHealthcare. We compare options at no cost to you.
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The Washington County aca health insurance market
Washington County has about 36,647 residents, 22% of them 65 or older. For aca health insurance, the carriers with the strongest local presence include Baylor Scott & White, Aetna, UnitedHealthcare — but the right fit depends on your household size, income, and which doctors you want to keep. We compare Baylor Scott & White against every other carrier serving Washington County at no cost, because the plan with the lowest sticker premium is rarely the one with the lowest total annual cost once subsidies, deductibles, and your prescriptions are factored in. Medicare Advantage enrollment figures reflect the latest CMS data (May 2026).
Washington County at a glance
Population (2024 ACS)
36,647
Medicare beneficiaries
10,459
MA penetration
41%
Age 65 or older
22%
What makes Washington County different: Washington County, home to Brenham and near the birthplace of Texas independence at Washington-on-the-Brazos, has one of the higher 65-plus shares in Central Texas (~22%); its market is unusual in that the locally based Baylor Scott & White SeniorCare Advantage plan out-enrolls national carriers, anchored by Baylor Scott & White Medical Center - Brenham, the only full-service hospital on US 290 between Houston and Austin.
Top carriers in Washington County
Baylor Scott & White (SeniorCare Advantage)
4-star CMS rating
Aetna
4-star CMS rating
UnitedHealthcare (AARP)
4-star CMS rating
Source: CMS Monthly MA Enrollment by State/County/Contract (latest Q1 2024). Enrollment figures refresh monthly at data.cms.gov.
Before you enroll: verify your hospital + doctor in Washington County
Each ACA Health Insurance plan builds its own provider network — a hospital that's in-network
on one plan may be out-of-network on another. Washington County has 1
major hospital systems. Before you enroll, check that your preferred hospital and physicians
participate in the specific plan you're considering.
Major hospitals to verify
â–¸Baylor Scott & White Medical Center - Brenham
Call each hospital's billing office directly — or use the carrier's
network tool on the right to search by hospital name.
Top Washington carriers — network lookup
Baylor Scott & White 4★
Search "Baylor Scott provider directory" or call the carrier directly.
Or skip the cross-checking — we run network checks against your prescriptions and doctors
at no cost during any consult.
Want to talk it through?
Pick a time on Matt's calendar — 15 minutes, no sales pressure, no obligation. We'll walk through the Washington County plans that fit your situation.
Major hospitals: Baylor Scott & White Medical Center - Brenham
Frequently Asked Questions
How many people live in Washington County?â–¾
Washington County has about 36,647 residents per the 2024 ACS 5-year estimates; 22% are age 65 or older.
Who are the top insurers in Washington County?â–¾
The largest carriers in Washington County are Baylor Scott & White (SeniorCare Advantage), Aetna, UnitedHealthcare (AARP). We work with all of them and a few smaller carriers that often have better rates for specific situations.
What state resources are available in Washington County?â–¾
Texas HICAP (1-800-252-9240) provides free unbiased Medicare counseling. Major hospitals in the county include Baylor Scott & White Medical Center - Brenham.
Why is the Baylor Scott & White SeniorCare Advantage plan more popular than national carriers in Washington County?â–¾
In Washington County, the locally based Baylor Scott & White SeniorCare Advantage plan offers tailored services that resonate with residents. With a higher percentage of seniors (22%) and proximity to the main hospital, locals often prefer this plan for its convenience and local support.
When can I enroll in ACA Marketplace plans for under-65 Texans?â–¾
You can enroll during Annual Enrollment Period (AEP) from October 15th to December 7th. Open Enrollment Periods (OEP) are also available, and Special Enrollment Periods (SEPs) allow enrollment outside these times due to qualifying life events.
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Educational only — not medical or legal advice. We do not offer every plan in your area. Call 1-800-MEDICARE for all options.
