Scam artists impersonating U.S. Census workers are distributing bogus forms seeking Social Security numbers, officials from the local census office warned Wednesday. Census office manager Sidna Madden said six Oklahoma County residents reported to her office that forms were left on their doorsteps with instructions to fill them out and return the documents to an Oklahoma City address. Any forms asking for Social Security numbers are bogus and should be reported to her office at 254-9122, Madden said. Residents who returned the forms are now concerned they were targeted for identity theft. "They could completely wreck someone’s financial savings,” Madden said. "There are way too many things they can do with that information. It’s very scary.” Rick Henson of Tuttle in Grady County said three weeks ago a woman wearing a T-shirt with "U.S. Census Bureau” written on it and driving a car with a census sticker distributed what appeared to be 2010 census forms in his neighborhood. Henson said he filled out a form that asked for his Social Security number and mailed it in. Madden said no U.S. Census forms ask for a Social Security number, and census workers do not wear identifying T-shirts. Madden said everyone should have received a form by now.