Columbia is a part of the Warren County region of New Jersey known for its clean air quality and good water. Major attractions include Harmony Equestrian Center and Lakota Wolf Preserve. Each year in the summer season there is the Warren County Farmer’s Fair. Among the biggest companies in Columbia are Fuel Stabilizer Engineering, LLC and Planet Self Storage. The nearest schools here are Vail Preschool and Warren East High. One of the best places to visit when you are in Columbia is The Cummins Building. Warren County was named for Dr. Joseph Warren.