Key Takeaways
- In 2023, ACA Marketplace enrollment reached a record 21.3 million people, including 16.4 million through Healthcare.gov and 4.9 million via state-based exchanges.
- As of March 2024, over 16 million people enrolled in ACA Marketplace plans during the 2024 Open Enrollment Period, a 28% increase from 2023.
- The ACA expanded Medicaid eligibility to adults with incomes up to 138% of the federal poverty level in 40 states and DC, covering about 20 million low-income adults by 2023.
- Average Marketplace premium before subsidies was $592/month for a 40-year-old in 2024.
- Enhanced ACA subsidies reduced net premiums to $10/month for many in 2023.
- National average individual market premium rose 4% in 2024, slower than 7% pre-ACA.
- Life expectancy increased by 2.8 years from 2009-2019 partly due to ACA coverage expansions.
- Preventable hospitalizations dropped 17% from 2010-2019 in expansion states.
- Cancer mortality rates declined 1.8% annually post-ACA vs. 1.1% pre-ACA.
- ACA added 2.3 million jobs in health care sector from 2010-2019.
- GDP grew 0.4% higher annually due to ACA coverage expansions.
- Uncompensated care costs for hospitals dropped $42 billion in 2019.
- Supreme Court upheld ACA in NFIB v. Sebelius (2012) with 5-4 vote, preserving core provisions.
- King v. Burwell (2015) affirmed subsidies in federal exchanges 6-3.
- California v. Texas (2021) dismissed challenge, upholding ACA 7-2.
The Affordable Care Act continues to cover record numbers of Americans and reduce uninsured rates.
Cost and Premiums
Cost and Premiums Interpretation
Economic Impact
Economic Impact Interpretation
Enrollment and Coverage
Enrollment and Coverage Interpretation
Health Outcomes
Health Outcomes Interpretation
Legal and Policy Changes
Legal and Policy Changes Interpretation
Sources & References
- Reference 1CMScms.govVisit source
- Reference 2KFFkff.orgVisit source
- Reference 3CDCcdc.govVisit source
- Reference 4CBPPcbpp.orgVisit source
- Reference 5ASPEaspe.hhs.govVisit source
- Reference 6HEALTHSYSTEMTRACKERhealthsystemtracker.orgVisit source
- Reference 7HHShhs.govVisit source
- Reference 8COMMONWEALTHFUNDcommonwealthfund.orgVisit source
- Reference 9CBOcbo.govVisit source
- Reference 10AHAaha.orgVisit source
- Reference 11HEALTHCAREhealthcare.govVisit source
- Reference 12EHEALTHINSURANCEehealthinsurance.comVisit source
- Reference 13URBANurban.orgVisit source
- Reference 14HEALTHAFFAIRShealthaffairs.orgVisit source
- Reference 15JAMANETWORKjamanetwork.comVisit source
- Reference 16PUBMEDpubmed.ncbi.nlm.nih.govVisit source
- Reference 17NEJMnejm.orgVisit source
- Reference 18NCBIncbi.nlm.nih.govVisit source
- Reference 19AHAJOURNALSahajournals.orgVisit source
- Reference 20AJKDajkd.orgVisit source
- Reference 21SBAsba.govVisit source
- Reference 22BLSbls.govVisit source
- Reference 23SHEPSCENTERshepscenter.unc.eduVisit source
- Reference 24NBERnber.orgVisit source
- Reference 25RANDrand.orgVisit source






