Open enrollment 2027
Medicare Advantage in Missouri, county by county.
61 of 115 counties have a page with their 2027 plans, the plans that end and who must pick a new plan. 738,540 people in the state had an individual Medicare Advantage plan in October 2026.
Sources: CMS CY2027 and CY2026 plan files, CMS CPSC enrollment October 2026, CMS 2027 Plan Crosswalk (October 1, 2026). Smaller counties open in the free lookup instead.
Counties
- Adairlookup
- Andrewlookup
- Atchisonlookup
- Audrain
- Barry
- Bartonlookup
- Bates
- Benton
- Bollingerlookup
- Boone
- Buchanan
- Butler
- Caldwelllookup
- Callaway
- Camden
- Cape Girardeau
- Carrolllookup
- Carterlookup
- Cass
- Cedar
- Charitonlookup
- Christian
- Clarklookup
- Clay
- Clinton
- Cole
- Cooperlookup
- Crawford
- Dadelookup
- Dallas
- Daviesslookup
- DeKalblookup
- Dentlookup
- Douglas
- Dunklin
- Franklin
- Gasconade
- Gentrylookup
- Greene
- Grundylookup
- Harrisonlookup
- Henry
- Hickorylookup
- Holtlookup
- Howardlookup
- Howell
- Ironlookup
- Jackson
- Jasper
- Jefferson
- Johnson
- Knoxlookup
- Laclede
- Lafayette
- Lawrence
- Lewislookup
- Lincoln
- Linnlookup
- Livingstonlookup
- Maconlookup
- Madisonlookup
- Marieslookup
- Marion
- McDonald
- Mercerlookup
- Miller
- Mississippilookup
- Moniteaulookup
- Monroelookup
- Montgomerylookup
- Morgan
- New Madridlookup
- Newton
- Nodawaylookup
- Oregonlookup
- Osagelookup
- Ozarklookup
- Pemiscotlookup
- Perrylookup
- Pettis
- Phelps
- Pikelookup
- Platte
- Polk
- Pulaski
- Putnamlookup
- Rallslookup
- Randolph
- Ray
- Reynoldslookup
- Ripleylookup
- Saline
- Schuylerlookup
- Scotlandlookup
- Scott
- Shannonlookup
- Shelbylookup
- St. Charles
- St. Clairlookup
- St. Francois
- St. Louis
- St. Louis City
- Ste. Genevieve
- Stoddard
- Stone
- Sullivanlookup
- Taney
- Texas
- Vernon
- Warren
- Washington
- Waynelookup
- Webster
- Worthlookup
- Wright
All states. Agents can get every county in one file with the AEP 2027 County Kit.