Of the 38 counties in the U.S where Medicare Advantage enrollment is 75 percent or more, six are in Texas, according to analyses by the Kaiser Family Foundation. Nationwide, Medicare Advantage penetration is, on average, 54 percent, a proportion that increases each year.
Starr County: 81 percent
El Paso County: 76 percent
Hidalgo County: 76 percent
Cameron County: 76 percent
Maverick County: 75 percent
Willacy County: 75 percent
