Since the 1920s Jasper has seen many economic changes. The leading cotton industry gave way to the turpentine industry, turpentine to lumber, lumber to tobacco, and finally tobacco to phosphate mining. The completion of Interstate 75 in the late 1950s caused further decline as tourists and shipping bypassed the town. In 2002 town officials extended the city limits and infrastructure to the intersection of US 129 and Interstate 75, and built infrastructure (water and sewer) with the help of county officials to the Hamilton County Industrial Park along US 41 in order to encourage economic growth and development. Since that time several new businesses have moved into the area, and the new high school has been built along the route.