As recently as 2016 Hawaii had the most payphones per capita of any state in the union. Most of Hawaii’s payphones are owned and operated by Hawaii Telecom, the regional phone company for the state. Payphones in the other 49 of these United States of America are owned and operated by COCOTs. Now you know.

Photos from Sean T., who adds:

The one with the grass and view is in Kula and the other two are in Kihei.