"The information, collected all over the United States by the ACS and throughout Puerto Rico by the Puerto Rico Community Survey (PRCS), serve as an impartial measuring stick used as the basis for decisions that affect nearly every aspect of our lives.... ACS estimates are an extremely useful tool for many data users to make important decisions for communities nationwide." (source: https://www.census.gov/programs-surveys/acs/about/information-guide.html#accordion-fa5caf1de6-item-9cba52952a)

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The ACS is mailed to a random sample of U.S. residents. They can respond by mail, online, or via phone.

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.