Colorado Health Access Survey | Colorado Health Institute

2025 Data and Analysis Coming November 19

Data collection for the Colorado Health Access Survey (CHAS) is complete, and CHI is busy analyzing the results. Since 2009, the CHAS has been the premier source of information on health coverage, access to health care, and the factors that influence health in Colorado. With nine surveys spanning nearly two decades, the CHAS provides a reliable source of information on the health trends and issues affecting our state.

Reliable, Credible Data for Colorado

With federal agencies no longer collecting certain types of data and some national health databases removed from federal websites, it’s more important than ever to provide credible data to state, local, and community decision-makers.

R egister for our November 19 launch event. Join us to hear our initial findings and check back regularly as we release new analyses each month. Use the CHAS Data Dashboard to explore data from the 2009-2023 surveys.

CHAS FAQ

CHAS Data Dashboard

2025 CHAS

Survey History

Ensuring the Future of Health Data in Colorado

If you use data from the CHAS and want to support equitable health data collection in Colorado and its trustworthy, independent analysis, please contact us. Funding for this work is never guaranteed.

Colorado’s Essential Health Survey

The CHAS plays a central role in efforts to improve health for everyone in Colorado.

In the past decade, the survey has measured the effects of the Affordable Care Act and identified work left to do to improve access to health care. It has examined social factors such as housing, food access, and discrimination in health care and measured the effects of the COVID-19 pandemic. In 2023 the CHAS revealed substantial changes in health, health access, and social stressors caused by COVID-19 and pandemic-related policies.

The survey’s large sample size — roughly 10,000 households — allows for statistically significant samples in urban and rural areas and by age, race, and income.

Policymakers, state agencies and local governments use the CHAS to measure access to care in Medicaid and to identify needs in behavioral health. Health systems and providers use it to help understand access to care in the areas they serve. Community-based organizations rely on CHAS data to evaluate local needs and inform their strategic plans and programs. Researchers and journalists use it to track the impact of policy shifts and gain insight into the state’s evolving health needs.

The CHAS Is for You

Data from the 2025 CHAS will be available to anyone who is interested. We invite researchers and other interested parties to use our research file or to reach out with requests for information and data. Contact chas@coloradohealthinstitute.org.

Disaggregating Data from the CHAS

Uncovering populations often hidden in data to tell deeper stories of Colorado communities.

Click to learn more

How to Use the Data

The CHAS is conducted every other year. CHI publishes the survey data in several formats:

A summary report with graphics and high-level analysis
Spreadsheets with data on all survey questions broken out by demographics
Two-page regional profiles
A research file for academic inquiry

Click on links to each year's survey above to see all the content for each year.

Download the CHAS fact sheet