Connecticut counties
Medicare Advantage and marketplace plans are set by area, so start with your county. 8 listed.
| County | Population (2023 est.) | Rank in Connecticut | Medicare plans leaving (2027) |
|---|---|---|---|
| Fairfield County | n/a | n/a | 16 |
| Hartford County | n/a | n/a | 18 |
| Litchfield County | n/a | n/a | 18 |
| Middlesex County | n/a | n/a | 18 |
| New Haven County | n/a | n/a | 18 |
| New London County | n/a | n/a | 18 |
| Tolland County | n/a | n/a | 16 |
| Windham County | n/a | n/a | 16 |
Population: U.S. Census Bureau Population Estimates, 2023. Connecticut replaced its counties with planning regions for Census purposes in 2022, but insurers and Medicare still use the eight historical counties, so those are listed here.
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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.