Contacting a licensed plumber for a visual inspection is the best way to determine if you have lead pipes in your home.
Homes built before the 1960s could have a lead water service pipe. If you don’t know the age of your home, check the purchase papers or contact the owner if you rent.
Check the pipe that enters your water meter if possible. It may be lead if it’s grey, scratches easily and doesn’t sound hollow when you tap it.