Arizona counties
Medicare Advantage and marketplace plans are set by area, so start with your county. 15 listed.
| County | Population (2023 est.) | Rank in Arizona | Medicare plans leaving (2027) |
|---|---|---|---|
| Apache County | 65,036 | 10 | 5 |
| Cochise County | 124,640 | 8 | 8 |
| Coconino County | 144,472 | 7 | 9 |
| Gila County | 54,003 | 11 | 7 |
| Graham County | 39,525 | 13 | 9 |
| Greenlee County | 9,369 | 15 | 7 |
| La Paz County | 16,710 | 14 | 7 |
| Maricopa County | 4,585,871 | 1 | 15 |
| Mohave County | 223,682 | 5 | 9 |
| Navajo County | 109,175 | 9 | 7 |
| Pima County | 1,063,162 | 2 | 16 |
| Pinal County | 484,239 | 3 | 11 |
| Santa Cruz County | 49,158 | 12 | 9 |
| Yavapai County | 249,081 | 4 | 9 |
| Yuma County | 213,221 | 6 | 8 |
Population: U.S. Census Bureau Population Estimates, 2023.
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Call 855-367-1095 Open 8 AM-10 PM Eastern timeReviewed by Richard Lander, licensed insurance agent (NPN 21255551), Lander LLC. Last updated October 3, 2026. This page is educational and is not a quote, an offer of coverage, or legal or tax advice.