Legal Question in Criminal Law in California

Did you plead guilty? If so, yes. It will remain on your record. If you did community service in exchange for it being dismissed, then it will remain, but it won't be a conviction.

If you were convicted, California does not have a true "expungement" statute. What we do have is a dismissal under Penal Code 1203.4. If granted, it doesn't wipe the case off your record, but it adds a notation that the case was dismissed. That allows you to tell most employers that you have not been convicted of the crime, but it remains on your record and still counts as a prior conviction.