Can you find out which state a letter came from with no return address?

Yes, it is possible to determine the state a letter came from even without a return address. You can check the postmark on the envelope, which typically indicates the location of the post office that processed the mail. Additionally, the zip code can provide clues about the state of origin. If no postmark is present, it may be more challenging, but other clues such as the sender’s handwriting style or any unique stamps might offer hints.