CMS Medicare enrollment · June 2026
Maryland Medicare Enrollment
State and county enrollment from CMS, including Original Medicare, Medicare Advantage and Other Health Plans, and Part D coverage.
Informational only. These enrollment counts do not compare plans or provide medical, financial, or enrollment advice.
Maryland enrollment figures
- Total Medicare enrollment
- 1.2M
- Original Medicare
- 899.4K
- MA & Other share
- 25%
- Part D coverage
- 71.8%
1,199,172
899,398 beneficiaries
CMS combined delivery-system measure
860,632 beneficiaries
County enrollment
25 CMS county rows for Maryland. Unavailable values remain marked as not reported rather than estimated.
| County | Total | Original Medicare | MA & Other | MA & Other share | Part D share |
|---|---|---|---|---|---|
| Allegany County | 17,414 | 14,145 | 3,269 | 18.8% | 79.6% |
| Anne Arundel County | 110,235 | 88,155 | 22,080 | 20% | 68.7% |
| Baltimore City | 104,499 | 66,234 | 38,265 | 36.6% | 77.1% |
| Baltimore County | 174,763 | 129,406 | 45,357 | 26% | 75.9% |
| Calvert County | 19,418 | 15,786 | 3,632 | 18.7% | 67.3% |
| Caroline County | 7,560 | 5,739 | 1,821 | 24.1% | 77.3% |
| Carroll County | 38,493 | 30,620 | 7,873 | 20.5% | 74% |
| Cecil County | 22,127 | 17,205 | 4,922 | 22.2% | 73.9% |
| Charles County | 29,776 | 22,267 | 7,509 | 25.2% | 63.1% |
| Dorchester County | 9,148 | 6,710 | 2,438 | 26.7% | 77.8% |
| Frederick County | 53,809 | 42,810 | 10,999 | 20.4% | 72.2% |
| Garrett County | 7,877 | 6,088 | 1,789 | 22.7% | 80.4% |
| Harford County | 57,272 | 42,931 | 14,341 | 25% | 72.7% |
| Howard County | 59,346 | 47,693 | 11,653 | 19.6% | 68% |
| Kent County | 6,464 | 5,308 | 1,156 | 17.9% | 81.8% |
| Montgomery County | 199,630 | 154,628 | 45,002 | 22.5% | 69.3% |
| Prince George'S County | 156,062 | 106,842 | 49,220 | 31.5% | 66.3% |
| Queen Anne'S County | 13,280 | 10,919 | 2,361 | 17.8% | 75.7% |
| Somerset County | 5,549 | 3,870 | 1,679 | 30.3% | 77.7% |
| St. Mary'S County | 20,373 | 16,829 | 3,544 | 17.4% | 59.8% |
| Talbot County | 12,461 | 10,449 | 2,012 | 16.1% | 78.3% |
| Unknown | Not reported | Not reported | Not reported | Not reported | Not reported |
| Washington County | 34,211 | 25,847 | 8,364 | 24.4% | 78.1% |
| Wicomico County | 22,175 | 16,106 | 6,069 | 27.4% | 77.5% |
| Worcester County | 17,230 | 12,811 | 4,419 | 25.6% | 79.2% |
Source and interpretation
CMS Medicare Monthly Enrollment, June 2026, published 2026-09-23. “MA & Other” retains the official combined CMS field label.
- CMS suppresses some small counts with an asterisk; suppressed values remain null in this snapshot.
- Medicare Advantage and Other Health Plans is the CMS-published combined measure and is not limited to Medicare Advantage alone.
- Enrollment counts describe a reporting month and do not compare plan benefits, provider networks, quality, or personal costs.