ILLINOIS GENEALOGY EXPRESS A part of Genealogy Express   Welcome to Piatt County, Illinois History & Genealogy BIRTHS CLICK HERE FOR BIRTH INDEX   Dewitt-Piatt Bi-County Health Department Piatt County Office 1020 S. Market, Monticello 61856 762-7911 **************   PIATT COUNTY CLERK AND RECORDER INFORMATION OBTAINING A CERTIFIED COPY A certified copy of a marriage license issued in Piatt County may be obtained from the County Clerk's office either in person or by mail. The fee for one copy is $8.00; additional copies of the same certificate are $2.00 each. Requests must include name of groom, maiden name of bride, and date of marriage. Mail requests along with applicable fee (check or money order) to: Pat Rhoades Piatt County Clerk PO Box 558 Monticello, IL 61856.