The city of Columbia is located within the counties of Monroe and St Clair. It covers a total area of 27.1 sq. km. Economy of the city revolves around industries involved in advertising, aviation, arts and crafts, automotive, finance, apparel, commercial printing, pharmaceuticals, freight forwarding, hotel, insurance and oil and lubrication, contribute to the local economy in a positive way. Commercial spaces are utilized by libraries, nurseries of plants, parking lot stations, recreation centers, campgrounds, roadside services, yogurt shops and educational institutions.