The Seattle Central Community College offers an Associate of Applied Science degree in "Sign Language Interpretation and Translation." The program covers areas of American Sign Language (ASL) interpretation, comparative linguistics and transliteration. After graduating, you will be qualified to work at a facility that caters to the needs of those with hearing disabilities. The two-year program consists of regular classroom lectures, seminars and internships.
Seattle Pacific University is a private school. The university offers six four-year programs in areas relevant to interpreters, including linguistics, Russian language and literature, German language and literature, Spanish language and literature, classics and classic languages. If you complete any of these programs, you will have a good foundation in a specific language, as well as some skills and techniques of interpretation.
Seattle University is another private small university that works as a not-for-profit institute. It offers four-year bachelor's programs in courses like German language and literature, French language and literature, and Spanish language and literature. By choosing any of these programs, you can concentrate on a single language you plan to excel in.
The University of Washington, a public school, has several campuses throughout the state, including one in Seattle. The university has a number of concentration areas for a future interpreter to choose from, including linguistics, East Asian languages and linguistics, Chinese, Japanese, Korean, Slavic, Russian, Germanic, Danish, Swedish, South Asian, French, Italian, Spanish, ancient Near Eastern and Biblical languages, Semitic languages and Latin linguistics. Almost all these areas of study offer bachelor's and master's degree programs; some offer doctoral programs as well.