On a Wisconsin driver’s license, the driver’s license number is printed on the front of the card. It’s the primary identifier assigned to you by the state, and it appears on every valid Wisconsin license regardless of when the card was issued or how the layout has changed over the years.
Don’t Confuse It With Numbers on the Back
The back of the card carries other codes, including inventory or product numbers used by the state for the card itself. Those aren’t your driver’s license number. For any official form, identity check, or record request, use the identifier on the front.
What the Number Looks Like
A Wisconsin driver’s license number is alphanumeric, so it contains both letters and numbers. The sequence is unique to you and stays with you through moves and card replacements, which is why it’s worth keeping a record of it somewhere secure in case you ever need it without your card in hand.
If You Don’t Have Your Card
If your card is lost or stolen and you need to see the number again, you can request a duplicate from the Wisconsin Department of Transportation through its online services. The replacement is processed and mailed to you.1Wisconsin Department of Transportation. Online driver license renewal/replacement – Section: Replace a lost driver license
You don’t need to know your driver’s license number to use the online system. If you don’t have it, you can verify your identity instead with your full Social Security number, date of birth, and zip code. After you finish the transaction, the state emails a temporary receipt that works as your license until the new card arrives in the mail.1Wisconsin Department of Transportation. Online driver license renewal/replacement – Section: Replace a lost driver license