Pennsylvania: Medicaid expansion enrollment up 30% since COVID hit; total Medicaid up 15%


I've once again relaunched my project from last fall to track Medicaid enrollment (both standard and expansion alike) on a monthly basis for every state dating back to the ACA being signed into law.

For the various enrollment data, I'm using data from's Medicaid Enrollment Data Collected Through MBES reports. Unfortunately, they've only published enrollment data through December 2020. In most states I've been able to get more recent enrollment data from state websites and other sources.

For Pennsylvania, I'm relying on raw data from the Pennsylvania Dept. of Human Services for January 2021 and later.

Pennsylvania didn't launch ACA expansion until 2015. Once it ramped up, total enrollment (both ACA & non-ACA) hovered around the 2.8 - 2.9 million range until COVID hit. Since then, non-ACA Medicaid has gone up by 9.8%; the expansion population has grown by 29.8%; and overall enrollment is up 15.2%.

Pennsylvania has 13,002,700 residents according to the 2020 U.S. Census. As of April 2021:

  • around 3.26 million were enrolled in Medicaid overall, or 25% of the population
  • around 2,27 million were enrolled in non-ACA Medicaid
  • around 992,000 were enrolled in ACA Medicaid expansion

Add in the ~292,000 subsidized ACA exchange enrollees and that's around 1.284 million Pennsylvania residents who would lose healthcare coverage if the Supreme Court strikes down the Affordable Care Act, or 9.9% of the state population.