AES Ohio Share: Utility CompaniesElectrical Equipment AES Ohio Visit Website 1201 W 5th St Marysville, OH 43040-0501 (800) 433-8500 (937) 642-0129 (fax) www.dpandl.com About About Electric distribution utility serving primarily the municipal areas of Marysville, Milford Center, Raymond, and Unionville Center in Union County. DP&L serves over 500,000 customer in 24 counties.