Check with your doctor or local public health clinic: This is usually the first place to start, especially for recent immunizations. Many doctor's offices and clinics will keep your records on file for several years.
Contact your state's immunization information system (IIS): Most states have an IIS that tracks immunizations given in the state. You can find contact information for your state's IIS on the Centers for Disease Control and Prevention (CDC) website
https://www.cdc.gov/vaccines/hcp/admin/immuniz-records.html.
Ask your parents or caregivers: If you're an adult, your parents or caregivers may still have your childhood immunization records.
Look for records in old documents: Check your baby book, school or camp forms, or any other documents from your childhood that might have immunization records.
If you're still having trouble finding your immunization records, you can contact the CDC Information Contact Center at 1-800-CDC-INFO (1-800-232-4636) for general immunization-related questions.