Patient Advocacy Without the Call Center
The data layer behind our Texas guide and all 42 city pages, in one place: CMS enrollment, Census demographics, and federal shortage designations, county by county.
Counties covered by our city pages (29 counties, 3,393,748 beneficiaries). Each county links to its anchor city page.
| County | Medicare beneficiaries | Medicare Advantage share | Dual-eligible | Residents 65+ | Shortage designations |
|---|---|---|---|---|---|
| Harris County | 650,374 | 60.2% | 101,162 | 615,504 | 15 |
| Dallas County | 360,905 | 53.9% | 54,328 | 329,947 | 7 |
| Bexar County | 335,389 | 57.8% | 56,233 | 283,381 | 9 |
| Tarrant County | 317,895 | 55.3% | 39,342 | 288,072 | 4 |
| Travis County | 157,606 | 47.7% | 16,181 | 159,228 | 2 |
| Collin County | 155,543 | 42.7% | 12,337 | 150,965 | 0 |
| El Paso County | 151,006 | 73.1% | 43,408 | 120,419 | 14 |
| Denton County | 131,822 | 44.6% | 9,951 | 127,724 | 1 |
| Fort Bend County | 131,536 | 54.7% | 15,172 | 112,289 | 1 |
| Hidalgo County | 122,933 | 75.9% | 46,619 | 110,902 | 7 |
| Williamson County | 102,804 | 46.7% | 6,685 | 96,035 | 1 |
| Cameron County | 72,234 | 72.7% | 25,275 | 63,776 | 7 |
| Galveston County | 69,044 | 55.5% | 7,104 | 56,604 | 2 |
| Nueces County | 66,696 | 64.4% | 12,110 | 59,572 | 3 |
| Brazoria County | 63,250 | 57.4% | 6,759 | 50,224 | 2 |
| Bell County | 63,217 | 51.6% | 8,235 | 49,855 | 1 |
| Lubbock County | 53,570 | 51.5% | 7,339 | 44,590 | 4 |
| Smith County | 52,146 | 48.5% | 5,743 | 42,158 | 2 |
| McLennan County | 49,785 | 53.3% | 7,170 | 42,801 | 2 |
| Jefferson County | 45,976 | 59.2% | 8,045 | 39,263 | 4 |
| Webb County | 38,462 | 62.2% | 12,131 | 28,957 | 3 |
| Brazos County | 29,889 | 49.7% | 2,917 | 24,712 | 3 |
| Gregg County | 28,592 | 52.2% | 4,228 | 20,175 | 4 |
| Taylor County | 28,122 | 42% | 4,039 | 22,886 | 1 |
| Wichita County | 26,825 | 36% | 4,054 | 20,006 | 4 |
| Tom Green County | 24,371 | 47.6% | 3,247 | 20,295 | 2 |
| Ector County | 21,776 | 52.2% | 3,506 | 16,650 | 2 |
| Midland County | 21,729 | 40.3% | 2,440 | 19,457 | 2 |
| Potter County | 20,251 | 49.7% | 3,601 | 17,148 | 2 |
Statewide, 54% of beneficiaries chose Medicare Advantage in 2025. Counties above that line see more prior authorizations and more denials worth appealing; counties below it lean on Medigap rights, which in Texas follow the federal rule: one guaranteed six-month window at 65, so timing matters. About 12.3% of Texas seniors live below the poverty line, the group most likely to qualify for unclaimed help: Extra Help, the Medicare Savings Programs, and other benefits most never claim. For the full rundown, read our Texas Medicare guide: HICAP, CDS, and STAR+PLUS explained.
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Read moreSources: CMS Medicare Monthly Enrollment (2025); US Census Bureau ACS 2023 5-year; CMS Care Compare Timely & Effective Care (median ER minutes, period ending 06/30/2025); HRSA Health Professional Shortage Area designation file. Data retrieved 2026-07-24. Understood Care is an independent private advocacy service, not a government agency.