New Jersey: Medicaid expansion enrollment up 30% since COVID struck; total Medicaid up 17%

New Jersey

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 some states I've been able to get more recent enrollment data from state websites and other sources.

Today I'm presenting New Jersey.

For enrollment data from January 2021 on, I'm relying on adjusted estimates based on raw data from the New Jersey Dept. of Human Services.

New Jersey's total Medicaid enrollment (including ACA expansion) jumped from around 1.6 million just before COVID hit the state hard to nearly 1.9 million today, with traditional Medicaid going up 11.3% and ACA expansion increasing by nearly 30%, for an overall hike of 17.4%.

New Jersey has 9,288,994 residents according to the 2020 U.S. Census. As of May 2021:

  • around 1.87 million were enrolled in Medicaid overall, or around 20.1% of the population
  • around 1.19 million were enrolled in non-ACA Medicaid
  • around 685,000 were enrolled in ACA Medicaid expansion.
  • Add in the ~31,000 subsidized ACA exchange enrollees and that's around 899,000 New Jersey residents who would lose healthcare coverage if the Supreme Court strikes down the Affordable Care Act, or 9.7% of the state population.