Membership is open to anyone interested in aquatic ecosystems, aquatic plant biology, flood control, irrigated agriculture, and aquatic-based recreation. WAPMS members include federal, tribal, state and local government employees, private sector aquatic plant managers, private industry representatives, academics, scholars and students with an interest in aquatic plant biology, identification, control and management.
WAPMS produces a bi-annual electronic newsletter, holds an annual conference and provides support for students to present research at the annual conference. The society also maintains an online membership database and is active on social media. Members also receive complimentary copies of the quarterly magazine, Aquatics.