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CABI of Boise, Idaho: Oldest Synagogue in Continuous Use West of the Mississippi

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14.06.2026

Nestled in the heart of Boise, Idaho, Congregation Ahavath Beth Israel (CABI) stands as a testament to the enduring spirit of Jewish life in the American West. Founded by Jewish merchants and families who helped shape the region in the late nineteenth century, CABI is housed in the oldest continuously used synagogue building west of the Mississippi River. Completed in 1896, the synagogue’s distinctive Moorish Revival architecture, highlighted by stained-glass windows, horseshoe arches, and handcrafted woodwork, reflects both its rich heritage and lasting beauty.

For generations, CABI has served as a center of worship, learning, and community, preserving the legacy of Idaho’s Jewish pioneers while embracing the future through its mission of empowering people to live meaningful Jewish lives.

I would like to thank Rabbi Johanna Rabbi Hershenson, President Betsy Russell and Executive Director Dr Robert H. Rich for their support of this article.

The exterior of Congregation Ahavath Beth Israel is both distinctive and historic. Clad in cedar shingles, the 1896 synagogue blends 19th century Rundbogenstil and Moorish Revival architectural styles, featuring a prominent circular rose window, graceful horseshoe-arched windows, and decorative shingle patterns that add texture and character.

Located at 11 N. Latah Street in Boise’s Bench neighborhood, the synagogue is the oldest continuously used synagogues west of the Mississippi River. Although relocated to its current campus in 2003, its historic exterior was carefully preserved, allowing the building to retain its original charm and architectural significance.

The interior of Ahavath Beth Israel is warm, intimate, and rich in historic character. Sunlight filtering through the stained-glass windows fills the sanctuary with color, creating a sense of peace and reverence that makes worship especially meaningful. A high barrel-vaulted ceiling, graceful Moorish-style horseshoe arches, and original woodwork draw attention to the ark and reflect the craftsmanship of the late nineteenth century. Together, the warm wood tones, historic details, and filtered light create a welcoming space for prayer, learning, and community.

The main ark of Ahavath Beth Israel Congregation’s synagogue in Boise is the centerpiece of the sanctuary, built into the wall directly behind the bimah. Its beautifully crafted wooden doors, adorned with Stars of David, house the congregation’s Torah scrolls and serve as a focal point for worship and reflection.  For many years, the congregation cared for three Torah scrolls, including one approximately 75 years old and two that were more than a century old.

Recently, the scrolls underwent a careful restoration process led by a sofer, a specially trained Torah scribe, who worked alongside congregants to clean the parchment, repair damaged letters, and preserve the scrolls for future generations. During restoration efforts this past........

© The Times of Israel (Blogs)