CMS Medicare enrollment · June 2026
Arizona 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.
Arizona enrollment figures
- Total Medicare enrollment
- 1.6M
- Original Medicare
- 758.3K
- MA & Other share
- 51.4%
- Part D coverage
- 81%
1,560,534
758,276 beneficiaries
CMS combined delivery-system measure
1,264,039 beneficiaries
County enrollment
16 CMS county rows for Arizona. Unavailable values remain marked as not reported rather than estimated.
| County | Total | Original Medicare | MA & Other | MA & Other share | Part D share |
|---|---|---|---|---|---|
| Apache County | 15,602 | 10,920 | 4,682 | 30% | 61.7% |
| Cochise County | 38,142 | 19,665 | 18,477 | 48.4% | 69.3% |
| Coconino County | 24,764 | 16,497 | 8,267 | 33.4% | 73.9% |
| Gila County | 18,258 | 10,552 | 7,706 | 42.2% | 78.7% |
| Graham County | 6,470 | 2,816 | 3,654 | 56.5% | 80.9% |
| Greenlee County | 1,327 | 601 | 726 | 54.7% | 77.1% |
| La Paz County | 6,749 | 3,560 | 3,189 | 47.3% | 72.5% |
| Maricopa County | 815,984 | 398,985 | 416,999 | 51.1% | 82.5% |
| Mohave County | 78,239 | 36,734 | 41,505 | 53% | 79.8% |
| Navajo County | 28,450 | 17,374 | 11,076 | 38.9% | 73.2% |
| Pima County | 263,242 | 112,039 | 151,203 | 57.4% | 82% |
| Pinal County | 108,164 | 46,437 | 61,727 | 57.1% | 82.6% |
| Santa Cruz County | 12,333 | 4,081 | 8,252 | 66.9% | 84.7% |
| Unknown | Not reported | Not reported | Not reported | Not reported | Not reported |
| Yavapai County | 96,397 | 55,949 | 40,448 | 42% | 78.5% |
| Yuma County | 46,413 | 22,066 | 24,347 | 52.5% | 77.8% |
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.