Under state law, you may legally obtain a certified copy of your own birth certificate and/or the birth certificate of your child (your name must appear on the child's birth certificate). You may obtain a birth certificate in one of 5 methods: Order Online Order By Phone Call Toll-Free: (866) 252-8974 Write us Mail your request to: Cook County Clerk David Orr Bureau of Vital Records P.O. Box 641070 Chicago, IL 60664-1070 Include the following items: a completed Birth Certificate Request Form* a photocopy of your photo identification.