REAL ANALYSIS / ARIZONA
Five counties.
One clear comparison.
Medicare Advantage enrollment, August 2025–August 2026. Explore the findings and the numbers behind them.
3-page PDF · 8-tab workbook · No sign-up
Pinal grew fastest.
Maricopa added the most.
| County | Aug 2025 | Aug 2026 | Change | Change % |
|---|---|---|---|---|
| Maricopa | 412,091 | 422,279 | +10,188 | +2.5% |
| Pima | 148,928 | 152,533 | +3,605 | +2.4% |
| Pinal | 56,605 | 59,931 | +3,326 | +5.9% |
| Yavapai | 39,592 | 40,253 | +661 | +1.7% |
| Yuma | 23,455 | 24,658 | +1,203 | +5.1% |
Sums of published numeric observations. CMS withholds small cells, so these are not exact enrollment totals.
Sources and how to read the results
The workbook includes county, payer and contract comparisons, 2,099 source rows, references and methods. Current-parent mappings are applied to both periods; this does not reconstruct historical ownership or identify members switching plans.
The PDF explains plan types, exclusions and missing counts. This is public-data sample analysis, not a customer case study.
Illustrative schema for data integrationsYOUR MARKET
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