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Justin-Siena is a Catholic high school in the Lasallian tradition that offers educational excellence and a loving, Christ-centered community. Learn about its heritage, admissions, community, and activities on its website.
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Justin-Siena is a Lasallian Catholic college preparatory...
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As alumni of Justin-Siena, we share a connection with the...
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Summer - A Lasallian Catholic High School in Napa, CA -...
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Back to School Guide - A Lasallian Catholic High School in...
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Justin-Siena is a Catholic high school in the Lasallian...
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The Justin-Siena High School seal embodies the icons of the...
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Academics - A Lasallian Catholic High School in Napa, CA -...
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Justin-Siena High School is a Roman Catholic preparatory school in the Lasallian tradition, located in Napa, California within the Roman Catholic Diocese of Santa Rosa in California.
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Justin-Siena High School is a top rated, private, boarding, Catholic school located in NAPA, CA. It has 650 students in grades 9-12 with a student-teacher ratio of 15 to 1. Tuition is $22,150 for the highest grade offered.
Justin-Siena High School is a top rated school with 650 students in grades 9-12. It offers AP courses, boarding options, and a variety of clubs and activities. See rankings, reviews, test scores, and more.
- (195)
- (707) 255-0950
- 4026 MAHER ST, NAPA, 94558, CA
As a Lasallian Catholic school, Justin-Siena is committed to accessibility for families of various financial realities and is proud to provide over $4.1 million in tuition assistance for qualified and deserving families of various means.
Meet our Faculty & Staff. Justin-Siena is home to an extraordinary group of committed faculty and staff who care deeply about our students. Our teachers encourage and set high expectations not only for Justin-Siena students but also for each other.