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The Colorado Health Access Survey

The CHAS has served as Colorado’s best source of information on health and access to care since 2009.

The 2019 Colorado Health Access Survey is no longer in the field.

Thank you to those who responded to the survey. The results of the Colorado Health Access Survey will be released later this year. Scroll down for links to the five previous surveys.

Did you receive a letter from the Colorado Health Institute inviting you to complete the Colorado Health Access Survey? Here are answers to some common questions about the survey.

What is the Colorado Health Access Survey?

The Colorado Health Access Survey (CHAS) is conducted every other year. It surveys Coloradans about their health, their interactions with health care systems, and the impact of major health care policy developments. More than 10,000 households are surveyed anonymously, online and by phone, to gather a representative sample of Colorado’s regions and population. The Colorado Health Institute (CHI) administers the CHAS through survey vendor SSRS. The survey is funded by The Colorado Trust and the Colorado Health Foundation.

Is the survey confidential?

The CHAS is voluntary and confidential. Your answers will be kept confidential and combined with other respondents’ answers. Your decision to participate will not affect your insurance, health care, or your relationship with any state or federal agency. No one — including CHI — will see your name or contact information.

How do you use the data from the survey?

The survey results inform much of our work at CHI. We use the data to spot shortcomings and successes in Colorado’s health care system and analyze policies to improve the system. Numerous public health agencies and nonprofits use CHAS data to inform their work. To see how we use this data you can look at our 2017 CHAS report here.

Why was my household selected?

Households are randomly selected for participation using addresses from the United States Postal Service’s Computerized Delivery Sequence file. The CHAS is designed to capture information about a representative sample of Coloradans across the state.

How do I complete the survey?

The 2019 Colorado Health Access Survey is no longer in the field.

If you have questions or comments about the survey, please email Eli Boone at


About CHI

We believe that sound evidence and solid analysis lead to better health policy, and that better health policy leads to healthier Coloradans.

Since our founding in 2002, the Colorado Health Institute has provided evidence-based data and information to inform policy, advance health, promote collaboration and support better access to care for all Coloradans.

Research is our priority, but it is just the beginning of our work. We have branched out in response to profound innovations in health, health care and health policy. Today, we are trusted strategic advisors, skilled evaluators and sought-after facilitators. We are a valued partner with the individuals, groups and communities across the state working to make Colorado No. 1 in health.

We analyze, we write, we talk, we tweet, we blog, we convene, we listen, we learn. In short, we make sure that solid information and sound advice reach the right people at the right time when it can do the most good.


Previous Years of the Colorado Health Access Survey


2017 Colorado Health Access Survey: The New Normal

Colorado has maintained its historic level of health coverage despite political uncertainty and rising insurance premiums. The state’s insurance rate is 93.5 percent, essentially unchanged from the all-time high of 93.3 percent set in 2015.


Colorado Health Access Survey 2015

A look at the effects of historic changes in health access in the wake of state and federal reforms.


Colorado Health Access Survey 2013

A crucial look at health coverage and access a year before implementation of the Affordable Care Act.


Colorado Health Access Survey 2011

The second survey in the series and the first to bear the Colorado Health Access Survey name.


Colorado Health Access Survey 2009

The inaugural large-sample survey of health coverage and access in Colorado.