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How Much and Why ACA Marketplace Premiums Are Going Up in 2026

This analysis of initial rate filings from all 50 states and DC shows ACA Marketplace insurers are proposing a median premium increase of 18% for 2026, more than double last year’s 7% median proposed increase. The analysis includes proposed rate changes by state and insurer.

Data and analysis

The Uninsured Population and Health Coverage

This Health Policy 101 chapter examines the share of the United States population who are uninsured, highlighting their demographics and the challenges they face because of the lack of coverage.

How Many Uninsured Are in the Coverage Gap?

This analysis estimates that 1.4 million uninsured individuals in the 10 states without Medicaid expansion, including many working adults, people of color, and those with disabilities, remain in the “coverage gap,” ineligible for Medicaid or for tax credits that would make coverage ACA's Marketplaces affordable to them.

Key Facts about the Uninsured Population

The number of people ages 0-64 who were uninsured held steady at 25.3 million in 2023, although the number of uninsured children rose from 3.8 million to 4.0 million. Most uninsured people are in low-income families and have at least one worker in the family.

How the Unwinding Affected Enrollees

Over half who were disenrolled say they put off needed medical care while trying to renew Medicaid. Overall, 19% of adults who had Medicaid prior to the start of unwinding say they were disenrolled at some point in the past year. Of this group, a large majority (70%) were left at least temporarily uninsured.

The uninsured: How costs affect care and health, 2023

Latest Polling
8%

Percent of adults who reported not having health insurance
55%

Percent of uninsured adults who reported delaying or forgoing some form of health care due to cost
19%

Percent of uninsured adults who report that they or a family member had difficulty paying medical bills
38%

Percent of uninsured adults who reported not having a usual source of care (vs. 8% of insured adults)
Peterson-KFF Health System Tracker

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  • Health Care Costs Survey – Summary and Chartpack

    Poll Finding

    The summary and chartpack highlight key findings from the joint USA Today/Kaiser/Harvard School of Public Health survey exploring Americans’ views on health care costs. Survey Summary and Chartpack (.

  • Cover the Uninsured Week 2006 – Kaiser Family Foundation Resources

    Fact Sheet

    May 1-7, 2006, is Cover the Uninsured Week, organized by The Robert Wood Johnson Foundation and several partner organizations. The Kaiser Family Foundation has a wide range of resources on the topics of health coverage and the nation's uninsured population to assist you in your work related to these issues.

  • Who are the Uninsured?  A Consistent Profile Across National Surveys

    Issue Brief

    Who are the Uninsured? A Consistent Profile Across National Surveys This issue brief examines the differences in the estimates of the uninsured population from three major surveys and finds that the estimates are actually more consistent than what is often perceived.

  • Health Coverage for Low-Income Parents

    Fact Sheet

    The fact sheet summarizes the health coverage of low-income parents, including recent trends, and discusses the current policy challenges related to expanding care for this population. Fact Sheet (.

  • The Affordable Choices Initiative: An Overview

    Fact Sheet

    The President's Affordable Choices initiative would permit states to redirect funds paid to hospitals and other health care institutions to initiatives that would provide the uninsured with private insurance. This fact sheet provides an overview of the fiscal year 2008 budget initiative. Fact Sheet (.

  • Health Insurance Coverage and Access to Care for Low-Income Non-Citizen Children

    Issue Brief

    Largely due to a high uninsured rate, low-income, non-citizen children have very poor access to care, with many lacking a regular provider and going without preventive care. This brief examines health coverage and access to care for low-income, non-citizen children to provide insight into the challenges they face in obtaining health insurance and accessing care.

  • Kaiser Health Tracking Poll: Election 2008 — June 2007

    Poll Finding

    This June tracking poll finds that health care remains the top domestic issue that the public wants presidential candidates to address, trailing only Iraq on the public’s overall priority list. Iraq ranks first among Democrats, Republicans and Independents alike.

  • Key Findings: Kaiser Health Tracking Poll: Election 2008 — June 2007

    Poll Finding

    This document presents key findings from the June 2007 Kaiser Health Tracking Poll: Election 2008, which tracks changes in the saliency of health as a political and policy priority, what the public’s priorities are for a health reform plan and whether any candidates are breaking through with the public with their health reform plans  …

  • New Reports and Briefing Focus on Dental Health Coverage and Access

    Fact Sheet

    More than 100 million Americans have no insurance to help cover dental needs. With health reform discussions ongoing, the Foundation's Kaiser Commission on Medicaid and the Uninsured (KCMU) cosponsored a briefing which examined oral health in the broader conversation of improving quality and expanding access. Three new reports from KCMU were released at the event.

  • Recent Tax Proposals to Increase Health Insurance Coverage

    Other Post

    This report includes a side-by-side analysis of recent tax proposals by Members of Congress and various health organizations designed to increase the number of individuals with private health insurance coverage.