Under ORS 251.167, the Secretary of State must create and make publicly available a list of the five most commonly spoken languages in the state, other than English, and that list must be based on the best available data and updated at least every 5 years.
Sources:
American Community Survey data, including estimated numbers of limited English proficient individuals who self-evaluate their ability to speak English as “less than very well,” and estimates from the
Population Research Center at Portland State University, 2022.