Open-access status of current U.S. state history journals around 2020. Note that both Pennsylvania and Massachusetts had two journals considered in this study, hence the duplicates of those states.
  Fully open-access (all articles gold or bronze)  Partially open-access (at least some articles bronze)  Fully closed-access (all articles available online behind a paywall)  Partially closed-access (all articles that are available online are paywalled, some articles unavailable online)  No journal considered in this study
Based on the map by Heitordp. Further information and data sources here.
Own work, based on File:Blank US Map (states only).svg by Heitordp
Collin Knopp-Schwyn, Heitordp