Private Schools Uniforms for Gem State Adventist Academy in Caldwell, ID. If you are looking for a private school in Caldwell, ID please visit this great resource for schools. Gem State Adventist Academy is a Regular elementary or secondary school and is a Seventh-Day Adventist school. The area of Caldwell, ID where Gem State Adventist Academy is located is considered . Your child’s education requires an enormousness amount of attention and you can narrow your search with our online tool…