County almanac · Texas
Harris County Medicare data (2026)
Aggregate Medicare facts for Harris County, Texas — from CMS, KFF, and the U.S. Census. Free to cite and reuse. No plan names, no rankings.
Harris County — quick facts
In Harris County, Texas, about 639,500 people are enrolled in Medicare, with roughly 61% in Medicare Advantage and the remaining 39% in Original Medicare. About 12% of the county's 4,835,125 residents are age 65 or older, and around 47 Medicare Advantage plans are available there. These are aggregate CMS, KFF, and U.S. Census figures — not a plan or carrier recommendation.
Updated 2026-06-06 · Source: CMS Medicare Monthly Enrollment + MA/Part D landscape (May 2026), KFF, U.S. Census ACS 5-Year
639,500
Medicare beneficiaries
61%
in Medicare Advantage
12%
residents age 65+
47
MA plans available
Why the plan count can change year to year
The number of Medicare Advantage plans available in a county isn't fixed — carriers enter and exit markets each year as Medicare's payment and Star-Ratings rules change. For 2026 the national Medicare Advantage plan count fell about 9%, and roughly 2.6 million members nationwide had their plan terminated and had to choose again (CMS, 2025). If your plan is non-renewed, you get a Special Enrollment Period — and your doctors and prescriptions may not carry over, so they're worth re-checking.
We track the Texas + Florida picture in our 2026 carrier-exit brief. Which specific plans serve Harris County — and whether they fit you — is something we go through one-on-one, free.
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Coverage we help with in Harris County
Want help making sense of Harris County's options?
Plan-specific questions (which plans, which doctors, which drugs) are best answered one-on-one — free, and with no obligation.
Common questions
How many people have Medicare in Harris County?
About 639,500 Texans in Harris County are enrolled in Medicare per the latest CMS Medicare Monthly Enrollment data. Around 61% are in Medicare Advantage plans; the rest are in Original Medicare, with or without a Medigap policy.
How many Medicare Advantage plans are available in Harris County?
As of the May 2026 CMS landscape data, about 47 Medicare Advantage plans are available to Harris County residents. That is a count of available plans only — it is not a list of plans we sell and not a recommendation. Each plan has its own network and drug list, which is why a free review confirms the real fit.
What share of Harris County is age 65 or older?
About 12% of Harris County's roughly 4,835,125 residents are age 65 or older, per U.S. Census Bureau ACS 5-Year estimates.
Where can I get free, unbiased Medicare help in Harris County?
TX HICAP — Houston-Galveston Area Council (1-800-252-9240) offers free, unbiased Medicare counseling. You can also contact Medicare.gov or call 1-800-MEDICARE for all of your options. Giron Agency offers a free, no-obligation review as well.
Sources: CMS Medicare Monthly Enrollment; CMS Medicare Advantage / Part D landscape (May 2026); KFF Medicare Advantage analysis; U.S. Census Bureau ACS 5-Year. Figures are aggregate and rounded. Giron Agency LLC is a licensed insurance agency; this is reference data, not a recommendation of any plan or carrier. We do not offer every plan available in your area. Not connected with or endorsed by the U.S. government or the federal Medicare program.