American Community Survey asks "questions about health insurance coverage to create statistics about the percentage of people covered by health insurance and the sources of health insurance." These statistics are used by various governmental agencies "to plan government programs, determine eligibility criteria, and encourage eligible people to participate in health insurance programs." (For more information about why this data is collected, please visit: https://www.census.gov/acs/www/about/why-we-ask-each-question/health/)

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Survey, via mail to specific addresses

3.5 million addresses nationwide are randomly selected each year to respond to the American Community Survey. More information about sample sizes, including the Oklahoma sample size each year, are available here: https://www.census.gov/acs/www/methodology/sample_size_and_data_quality/

Random sampling method of data collection on a rotating basis, participants are legally obligated to answer all questions as accurately as possible. Privacy is protected by the Census Bureau. There is a 90% margin of error for the ACS in general, however, there is also a unique margin of error for each statistic.

The data is publicly available and may be used for cross-community comparisons by the public, journalists, educators, businesses, and various government and nonprofit agencies.