transit service governed by the County of Volusia. SunRail provides commuter rail service to the Orlando area in the neighboring city of DeBary via Votran feeder bus service to the DeBary station, and a 275-space park and ride. The closest major passenger airport to Deltona is Orlando International Airport, located approximately south. Additional commercial airline service is provided at Orlando Sanford International Airport, approximately south, and Daytona Beach International Airport, approximately northeast. Deltona's only limited-access highway is Interstate 4, and traverses through the city's western boundary. Other major highways include Florida State Road 472, which terminates near the city limit in northwestern Deltona at Howland Boulevard, and Florida State Road 415, which traverses through the city's southeastern boundary. The city's water supply and wastewater management is overseen by Deltona Water, a division of the City of Deltona's Public Works Department, with some areas managed by the Volusia County Water Resources and Utilities division. Its main water supply comes from the Floridan aquifer system, one of the most productive aquifers in the world. Commercial solid waste (trash and garbage collection), and yard waste services are offered through Waste Pro. Natural gas is provided by Florida Public Utilities. Electric power service is provided by Florida Power & Light and Duke Energy. Wired telephone service is provided by AT&T and CenturyLink. Cable television is provided by Spectrum. Economy , 60.0% of the population aged 16 years and over was in the labor force, with 52.7% employed and 7.2% unemployed. 32.4% of the population worked in sales and office occupations; 24.8% worked in management, business, science and arts occupations; 20.7% in service occupations; 11.5% in production, transportation, and material moving occupations; and 10.6% in natural resources, construction, and maintenance occupations. The industries for which the city's inhabitants worked were 20.0% educational, health, and social services; 15.4% retail trade; 10.7% professional, scientific, management, administrative and waste management services; 9.5% arts, entertainment, recreation, accommodation and food services; 7.7% manufacturing; 7.6% finance, insurance, real estate, and rental and leasing; 7.2% construction; 6.3% public administration; 5.1% transportation, warehousing and utilities; 4.5% other services (except public administration); 3.5% information; 2.2% wholesale trade; and 0.4% agriculture, forestry, fishing and hunting, and mining. 82.7% of workers worked in the private sector, 12.7% in government, and 4.6% self-employed in unincorporated businesses. 85.9% of the population commute to work by driving alone in own car, with 8.1% consisting of carpoolers, 3.3% worked from