Sinai, South Dakota

About Sinai

Set in the eastern part of South Dakota, Sinai is a tiny community with an estimated population of 100.

Sinai holds the status of an incorporated town — local government on a neighborly scale. The community covers 0.37 square miles, giving it wide-open spaces and a spread-out, rural feel at roughly 270 residents per square mile.

📰 Sinai News Today

• Robert "Bob" Olson Obituary Oct 25, 2025 Eidsness Funeral and Cremation Services · Jan 14
• Obituary for Grace M. Wangberg Crawford Osthus Funeral Chapel · Feb 23
• Sinai resident heading to prison for rape - Brookings Register - Brookings Register - · Mar 6
• Darwin Husby Obituary May 3, 2026 Miller Funeral Home · May 3
• Mark Wendell Tisland Heartland Funeral Home · Apr 28

Live headlines via Google News — updates through the day.

What Makes Sinai Unique

• The only place in America named Sinai — a truly one-of-a-kind name among 32,000+ US communities.
• Positioned in eastern South Dakota, convenient to the region's corridors and crossings.
• Part of the fabric of South Dakota — one of 485 recognized communities statewide.

Why People Love It Here

• Small-town pace of life: less traffic, more community, and neighbors who wave.
• Cost of living typically runs below the big-metro average.
• Well connected: 3+ neighboring communities within 9 miles.

⚡ Quick Facts

🗺️ Map of Sinai

🏘️ Nearby Communities