Medicare Advantage · State · 2026 plan year

Medicare Advantage in Iowa

According to the Centers for Medicare & Medicaid Services (CMS) 2026 plan-year files, 75 plans across 99 counties; find your county to compare every plan available where you live.

75
Plans available
3.9★
Avg CMS rating
$27.65
Avg premium/mo
3
5-star plans

The short answer

Iowa ranks #32 of 49 by Medicare Advantage plan inventory (75 plans) but #18 by average CMS star (3.91★).

#32
inventory rank
75
plans statewide
#18
avg star rank
3.91★
mean CMS rating

Plan inventory and average star are independent CMS signals; a large catalog is not the same as the highest mean quality score.

Product mix · IA plans_unique

How 43 Iowa plans split by CMS plan type

Exclusive CMS plan-type codes for this state's representative plans_unique rows, orthogonal to the star-bucket chart below. Source: CMS landscape, 2026.

County-level service areas

What the CMS data shows for Iowa

Iowa lists MA plans across 99 counties · inventory rank #32/49 · star rank #18/49. According to CMS 2026 plan-year filings, Iowa beneficiaries can choose from 75 distinct Medicare Advantage plans marketed across 99 counties. 3 plans reached the top 5-star tier (year-round Special Enrollment rights for those contracts). County (FIPS) service areas still decide what is sold where you live - open a county below before the October 15 - December 7 Annual Election Period closes.

plans #32/49 · stars #18/49 · 99 counties · avg prem $27.65/mo

Medicare Advantage Quality in Iowa

Iowa offers 75 Medicare Advantage plans across 99 counties. With an average star rating of 3.9 out of 5, Iowa's Medicare Advantage landscape sits close to the national rated-plan average of about 3.9 stars. Confirm premiums and networks on <a class="underline" href="https://www.medicare.gov/plan-compare/" target="_blank" rel="external noopener">Medicare.gov Plan Compare</a>.

Where Iowa sits on CMS quality

Average CMS star rating across the state's own Medicare Advantage plans, against every state and territory in the CMS file

3.91★ Top 33% higher than 67% of 49 states and territories

3.25★–3.5★: 1 states and territories (2%). Below this entry. 3.5★–3.75★: 13 states and territories (27%). Below this entry. 3.75★–4★: 23 states and territories (47%). This entry sits in this band. 4★–4.25★: 10 states and territories (20%). Above this entry. 4.25★–4.5★: 1 states and territories (2%). Above this entry. 4.5★–4.75★: 0 states and territories (0%). Above this entry. 4.75★–5★: 1 states and territories (2%). Above this entry. This state 3.25★ 5★ every state and territory, bucketed by value

Each bar is a band; taller bars hold more states and territories. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Advantage Star Ratings 2026 · 2026-09-01

Counties in Iowa

Click a county to see all Medicare Advantage plans available in your area.

Adair
25 plans
3.9
$29.27/mo avg
Adams
32 plans
4.0
$23.27/mo avg
Allamakee
27 plans
3.8
$38.56/mo avg
Appanoose
26 plans
3.9
$27.94/mo avg
Audubon
25 plans
3.8
$26.70/mo avg
Benton
38 plans
3.9
$24.69/mo avg
Black Hawk
34 plans
3.9
$26.39/mo avg
Boone
39 plans
3.9
$24.80/mo avg
Bremer
33 plans
3.9
$23.94/mo avg
Buchanan
33 plans
3.9
$23.94/mo avg
Buena Vista
24 plans
3.7
$34.43/mo avg
Butler
38 plans
3.9
$24.69/mo avg
Calhoun
26 plans
3.8
$29.85/mo avg
Carroll
26 plans
3.8
$29.40/mo avg
Cass
27 plans
3.9
$28.84/mo avg
Cedar
39 plans
3.9
$24.69/mo avg
Cerro Gordo
27 plans
3.8
$28.89/mo avg
Cherokee
26 plans
3.7
$31.46/mo avg
Chickasaw
29 plans
4.0
$24.58/mo avg
Clarke
26 plans
3.9
$23.80/mo avg
Clay
28 plans
3.8
$29.03/mo avg
Clayton
37 plans
3.9
$24.84/mo avg
Clinton
40 plans
3.9
$25.11/mo avg
Crawford
23 plans
3.7
$32.52/mo avg
Dallas
40 plans
3.9
$24.20/mo avg
Davis
22 plans
3.8
$26.78/mo avg
Decatur
24 plans
3.9
$28.66/mo avg
Delaware
42 plans
3.9
$24.69/mo avg
Des Moines
31 plans
3.8
$27.51/mo avg
Dickinson
29 plans
3.8
$29.85/mo avg
Dubuque
18 plans
3.6
$36.85/mo avg
Emmet
19 plans
3.6
$39.78/mo avg
Fayette
42 plans
3.9
$31.78/mo avg
Floyd
37 plans
3.9
$24.69/mo avg
Franklin
35 plans
3.9
$24.95/mo avg
Fremont
30 plans
3.9
$23.95/mo avg
Greene
28 plans
3.9
$22.15/mo avg
Grundy
38 plans
3.9
$24.69/mo avg
Guthrie
25 plans
4.0
$24.93/mo avg
Hamilton
36 plans
3.9
$24.37/mo avg
Hancock
33 plans
3.9
$23.73/mo avg
Hardin
36 plans
3.9
$24.37/mo avg
Harrison
35 plans
3.8
$33.67/mo avg
Henry
34 plans
3.9
$26.40/mo avg
Howard
22 plans
3.7
$26.11/mo avg
Humboldt
28 plans
3.9
$24.33/mo avg
Ida
26 plans
3.8
$27.34/mo avg
Iowa
35 plans
3.9
$26.20/mo avg
Jackson
41 plans
3.9
$24.69/mo avg
Jasper
40 plans
3.9
$24.08/mo avg
Jefferson
26 plans
3.8
$25.61/mo avg
Johnson
33 plans
3.8
$28.54/mo avg
Jones
42 plans
3.9
$24.69/mo avg
Keokuk
32 plans
3.8
$28.35/mo avg
Kossuth
29 plans
3.8
$30.27/mo avg
Lee
28 plans
3.8
$29.20/mo avg
Linn
35 plans
3.8
$27.88/mo avg
Louisa
37 plans
3.9
$25.08/mo avg
Lucas
22 plans
3.9
$29.08/mo avg
Lyon
30 plans
3.8
$29.98/mo avg
Madison
40 plans
3.9
$24.20/mo avg
Mahaska
28 plans
3.9
$26.94/mo avg
Marion
30 plans
3.9
$28.52/mo avg
Marshall
36 plans
3.9
$24.26/mo avg
Mills
39 plans
3.8
$28.01/mo avg
Mitchell
31 plans
3.9
$23.27/mo avg
Monona
24 plans
3.8
$33.15/mo avg
Monroe
26 plans
3.9
$27.94/mo avg
Montgomery
29 plans
3.9
$28.23/mo avg
Muscatine
40 plans
3.9
$25.11/mo avg
O'Brien
24 plans
3.7
$31.93/mo avg
Osceola
29 plans
3.8
$26.80/mo avg
Page
23 plans
3.7
$30.54/mo avg
Palo Alto
19 plans
3.6
$36.94/mo avg
Plymouth
30 plans
3.8
$29.75/mo avg
Pocahontas
26 plans
3.8
$29.85/mo avg
Polk
40 plans
3.9
$24.20/mo avg
Pottawattamie
43 plans
3.9
$28.26/mo avg
Poweshiek
32 plans
3.9
$24.98/mo avg
Ringgold
25 plans
3.9
$27.29/mo avg
Sac
26 plans
3.8
$29.85/mo avg
Scott
40 plans
3.9
$24.80/mo avg
Shelby
33 plans
3.9
$24.34/mo avg
Sioux
30 plans
3.8
$33.03/mo avg
Story
30 plans
3.8
$28.53/mo avg
Tama
38 plans
3.9
$24.69/mo avg
Taylor
18 plans
4.0
$20.80/mo avg
Union
24 plans
3.9
$28.66/mo avg
Van Buren
23 plans
3.8
$27.29/mo avg
Wapello
20 plans
3.8
$37.05/mo avg
Warren
40 plans
3.9
$24.08/mo avg
Washington
36 plans
3.9
$24.69/mo avg
Wayne
26 plans
3.9
$27.94/mo avg
Webster
28 plans
3.8
$30.28/mo avg
Winnebago
29 plans
3.8
$27.40/mo avg
Winneshiek
22 plans
3.8
$47.98/mo avg
Woodbury
30 plans
3.8
$26.47/mo avg
Worth
34 plans
3.9
$23.27/mo avg
Wright
34 plans
3.9
$25.30/mo avg

Next: understanding star ratings · choosing a plan.

Note: PlainMedicare provides publicly available CMS data for informational purposes only. This is not medical or insurance advice. Consult a licensed Medicare counselor or insurance agent before making enrollment decisions. Plan availability and premiums change annually, always verify with Medicare.gov or 1-800-MEDICARE.
Data sourced from the Centers for Medicare & Medicaid Services (CMS). Retrieved and formatted by PlainMedicare

Using Iowa's Medicare Advantage market

Plan availability and star ratings vary by county, not just by state.

  • Iowa beneficiaries can choose from 75 distinct Medicare Advantage plans across 99 counties (#32 of 49 states by plan count) - look up your own county for what's actually sold there. Browse by county
  • The state's mean CMS star rating ranks #18 of 49 - see how star ratings are built before comparing plans. How star ratings work
  • Weigh total cost, not just premium: compare plan details using Medicare.gov before you enroll. Medicare Plan Compare

State-level figures average every county's filings; the plans actually sold where you live can differ from the state total.

PlainMedicare is rendered directly from CMS Medicare Advantage and Part D public files, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a correction. Data current as of 2026-09-01.

CMS lists 131,985 Medicare Advantage and Part D plan records in the current public files. PlainMedicare refreshes this registry with each annual release.