Medicare in Jackson County, South Dakota · Plan Year 2026

Medicare Advantage Plans in Jackson County, SD: Your Complete 2026 Guide

Jackson County has 4 Medicare Advantage plans for 2026 — 2 with a $0 premium — serving a county where CMS counts 478 Medicare beneficiaries. 25% of plans are rated 4 stars or higher by CMS. Residents can also choose from 8 Medicare Cost plans, a South Dakota specialty. Below is the real data — every plan, premium, and rating — plus a live tool for your ZIP.

Page last revised: 2026-07-19 · Plan and enrollment data refreshed: 2026-07-19 · Plan year 2026

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What neighbors actually chose

Most-enrolled Medicare Advantage plans in Jackson County

Enrollment counts are CMS facts, not our recommendation — the right plan depends on your doctors, drugs, and budget.

1. AARP Medicare Advantage Patriot No Rx SI-MA2 (PPO) (PPO) — 16 enrollees
2. Blue Medicare Advantage Enhanced PPO (PPO) (PPO) — 14 enrollees

Source: CMS Medicare Advantage Enrollment by State/County/Contract (counts under 11 suppressed by CMS).

A South Dakota specialty

Medicare Cost plans in Jackson County

South Dakota is one of the few states where Medicare Cost plans are still common. They combine plan benefits with a safety valve: outside the network, care simply falls back to Original Medicare rates. Jackson County has 8 Cost plans for 2026 from Medica with 44 county enrollees. The most-enrolled Cost plan locally is Medica Prime Solution Core (Cost).

Cost plans are quoted person-by-person — ask us to compare them against the Medicare Advantage table above for your situation.

Health profile · why plan choice matters here

Chronic conditions among Jackson County adults

The right coverage depends on your health. CDC PLACES model-based prevalence for Jackson County (2,776 residents) — a reason to check each plan's drug formulary and specialist network before enrolling:

Source: CDC PLACES: Local Data for Better Health, County (crude prevalence).

How and when to enroll in Jackson County

When you can sign up

• Initial Enrollment Period — the 7-month window around your 65th birthday (3 before, your birthday month, 3 after). Medicare 101 →
• Annual Enrollment Period — October 15 to December 7 each year, for 2027 coverage decisions.
• Medicare Advantage Open Enrollment — January 1 to March 31, one switch allowed if you already have an MA plan.
• Special Enrollment Periods — after life events like moving counties, losing employer coverage, or qualifying for Extra Help.

Ways to enroll

• With a licensed local agent (free) — Big Sioux Benefits · (605) 555-0142 · Mon–Fri 8am–6pm CT. We compare the plans we offer in Jackson County against your doctors and drugs.
• Directly with a plan's carrier — using the CMS plan ID from the tables above.
• Through Medicare.gov — the federal plan finder and enrollment portal.

Plan availability in Jackson County

2026 plans in the tables above are sold county-wide. That includes residents of Belvidere, Cottonwood, Interior, Kadoka, Wanblee, and all other Jackson County communities. To enroll in Medicare Advantage or a Cost plan you must be enrolled in Medicare Part A and Part B and live in the plan's service area.

Sources, citations, and methodology

• CMS Medicare Advantage/Part D Landscape (PY2026) — accessed 2026-07-19
• CMS Medicare Part C & D Star Ratings (2026) — accessed 2026-07-19
• CMS Medicare Advantage Enrollment by State/County/Contract — accessed 2026-07-19
• CMS Medicare Monthly Enrollment (county) — accessed 2026-07-19
• CDC PLACES: Local Data for Better Health, County (crude prevalence) — accessed 2026-07-19
• CMS Hospital Compare — Overall Star Ratings — accessed 2026-07-19
• US Census Bureau — Places by County (2020) — accessed 2026-07-19

Methodology: plan counts, premiums, out-of-pocket maximums, Part D deductibles, and star ratings are computed from the CMS PY2026 Landscape source files for Jackson County, South Dakota. Headline "average premium" and "$0 premium" figures use the Part C premium; the consolidated Part C + D premium is reported separately. Special Needs Plans (D-SNP, I-SNP) and Medicare Cost plans are excluded from Medicare Advantage averages and shown separately. County enrollment sums CMS contract-level enrollment for Jackson County; CMS suppresses counts under 11, so totals are conservative. Health prevalence figures are CDC PLACES model-based estimates. Content is prepared by the Big Sioux Benefits Data Desk and reviewed for accuracy against the cited files; plan details change — verify with a licensed agent before enrolling.

Big Sioux Benefits is a licensed insurance agency, not affiliated with or endorsed by the U.S. government or the federal Medicare program. We do not offer every plan available in your area. Contact Medicare.gov or 1-800-MEDICARE for all options.