The Johnsonville RSA currently has a membership of approximately 600. The categories are Returned, Service, Associate, and Life membership. All of these categories have equal voting rights. There can also be non-voting, elected Honourary Life Members.
In the past there were rules that required office bearers to be Returned or Service members, but these have been relaxed over the years as the proportion of Associate members has steadily risen.
Subscriptions are set for the following calendar year at the Annual General Meeting in May. They are due in December with a rebate applied if paid by the 1st of January for the ensuing year.