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Medicare plans in Jefferson County, CO — 2026
What agents look up before working a county: plan count, carriers, $0-premium share, star distribution, MOOP range, the 65+ and 60–64 population, and what changed since last year.
In 2026, Jefferson County, Colorado has 82 Medicare plans (37 Medicare Advantage with drug coverage, 7 without, 10 standalone Part D, 28 Special Needs) from 13 carriers. 39 Medicare Advantage plans have a $0 premium. The lowest in-network out-of-pocket maximum is $2,900.
Market snapshot
- Residents 65 and older
- 103,643
- Residents 60–64, aging in over the next five years
- 38,499
- Medicare eligibles
- 122,557
- Medicare Advantage penetration
- 62.6%
- Plans per 1,000 residents 65+
- 0.8
Carriers by number of plans
- Humana — 19 plans
- UnitedHealthcare — 14 plans
- Aetna Medicare — 10 plans
- Devoted Health — 9 plans
- Kaiser Permanente — 7 plans
- HealthSpring — 6 plans
- Select Health — 5 plans
- Perennial Advantage — 3 plans
Plans sorted by CMS star rating, then premium
| Plan | Carrier | Category | Plan type | Monthly premium | Drug deductible | Out-of-pocket maximum | Star rating |
|---|
| AARP Medicare Advantage Essentials from UHC CO-2 (HMO-POS) (H0609-012-0) | UnitedHealthcare | MA-PD | HMO-POS | $0 | $520 | $4,100 | 4.5 |
|---|
| AARP Medicare Advantage Extras from UHC CO-5 (HMO-POS) (H0609-048-0) | UnitedHealthcare | MA-PD | HMO-POS | $0 | $600 | $5,400 | 4.5 |
|---|
| AARP Medicare Advantage from UHC CO-21P (HMO-POS) (H0609-079-0) | UnitedHealthcare | MA-PD | HMO-POS | $0 | $520 | $3,900 | 4.5 |
|---|
| Aetna Medicare Signature (PPO) (H5521-250-0) | Aetna Medicare | MA-PD | PPO | $0 | $615 | $6,350 | 4.5 |
|---|
| Humana Value Choice H7617-064 (PPO) (H7617-064-0) | Humana | MA-PD | PPO | $0 | $400 | $5,100 | 4.5 |
|---|
| HumanaChoice Giveback H7617-061 (PPO) (H7617-061-0) | Humana | MA-PD | PPO | $0 | $0 | $7,850 | 4.5 |
|---|
| HumanaChoice SNP-DE H7617-067 (PPO D-SNP) (H7617-067-0) | Humana | SNP | PPO D-SNP | $0 | $615 | $9,250 | 4.5 |
|---|
| Kaiser Permanente Dual Complete (HMO D-SNP) (H0630-027-0) | Kaiser Permanente | SNP | HMO D-SNP | $0 | $615 | $8,850 | 4.5 |
|---|
| Kaiser Permanente Dual Essential (HMO D-SNP) (H0630-014-0) | Kaiser Permanente | SNP | HMO D-SNP | $0 | $615 | $4,900 | 4.5 |
|---|
| Kaiser Permanente Senior Advantage Bronze DM (HMO-POS) (H0630-025-0) | Kaiser Permanente | MA-PD | HMO-POS | $0 | $0 | $5,900 | 4.5 |
|---|
Showing 10 of 82 plans.
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About this data
Source: CMS Medicare Advantage/Part D Landscape files, plan year 2026; population: U.S. Census Bureau ACS 5-year 2024; MA penetration: CMS September 2026.
This page summarizes publicly available CMS data. It is not a plan finder and does not recommend plans. To compare and enroll in plans, use Medicare.gov or talk to a licensed agent. Medicare.gov plan finder.