Interactive Maps: Estimates of Enrollment in ACA Marketplaces and Medicaid Expansion

From Kaiser Family Foundation, January, 2017 

As the 115th U.S. Congress deliberates the future of the Affordable Care Act, an interactive map from the Kaiser Family Foundation provides estimates of the number of people in each congressional district who enrolled in a 2016 ACA marketplace health plan and the political party of each district’s representative as of January.

The analysis also includes maps charting the total number of people enrolled under the ACA Medicaid expansion in 2015 in states that implemented the ACA Medicaid expansion, along with the political parties of their governors and U.S. senators. As of January 2017, among states that adopted the Medicaid expansion, 16 have Republican governors, 14 have Democratic governors, and one has an Independent governor. In Washington, D.C., which also expanded Medicaid, the mayor is a Democrat.

The map below shows estimates of ACA Marketplace enrollment as of March 2016 by congressional district, with red and blue districts representing those with a Republican or Democratic congressional representative.  Districts with darker shading have a greater number of Marketplace enrollees.  Of the 11.5 million Marketplace enrollees nationally, 6.3 million live in Republican districts and 5.2 million live in Democratic districts. Marketplace enrollees per Republican district range from 10,200 enrollees in West Virginia’s District 3 to 96,300 enrollees in Florida’s District 27, with a median of 24,300 enrollees per district. Marketplace enrollees per Democratic district range from 5,200 enrollees in Hawaii’s District 1 to 94,100 enrollees in Florida’s District 10, with a median of 23,600 enrollees per district. The ten congressional districts with the highest number of Marketplace enrollees are all in Florida. There are 17 congressional districts (8 Republican districts and 9 Democratic districts) with over 50,000 enrollees, located in the following states: Florida, North Carolina, Georgia, and Montana.

As of January 2017, 32 states including the District of Columbia implemented the ACA Medicaid expansion to adults. This expansion extended Medicaid eligibility to many adults who were previously excluded from Medicaid. In 2015, about 14 million Medicaid enrollees were adults in the expansion group.  This group includes those who were made newly eligible by the ACA Medicaid expansion as well as a smaller group of enrollees who were eligible for Medicaid through pre-ACA eligibility pathways (see methods for more details). The expansion group accounts for 18% of all Medicaid enrollees. Since 2015, this number has likely grown as enrollment has continued to increase and additional states have expanded, including Louisiana and Montana.

read … Enrollment in ACA

Hawaii

• Number of People Enrolled in Affordable Care Act Marketplaces in 2016 CD1 – 5,200
• Number of People Enrolled in Affordable Care Act Marketplaces in 2016 CD2 – 8,100
• State Total Number of Marketplace enrollees, 2016: 13,313
• Number of Marketplace enrollees with Advance Premium Tax Credits, 2016: 10,958
• Number of Marketplace enrollees with Cost Sharing Reductions, 2016: 8,067
• Estimated Total Annual Premium Tax Credits Received by Marketplace Enrollees, 2016: $35,504,000  ($35,504,000 / 13,313 = $2667 ea)
• Number of Medicaid expansion enrollees, 2015: 107,500