Yes, but it is less than half of the states(though I'm not sure what percent of the population are covered), and even then, many of the bans are phrased such that pay history questions are only banned before an offer is made, or it is voluntary but employees may not know their rights.
It is still legal to rescind or modify an offer after you discover salary history in most states with a "pay history" ban in place.
It is still legal to rescind or modify an offer after you discover salary history in most states with a "pay history" ban in place.
https://fitsmallbusiness.com/salary-history-ban