The short answer is no, to most activities. However, there is a monthly participation fee of $5. This only covers one registered activity, such as exercise or cards. For the Senior Nutrition meals, you don't have to be a member.
They say life begins at 50 and so does membership in the Yelm Senior Center. Please note though, at 50 you won't qualify for the senior programs for reduced meals or for the transportation program. These programs begin at 60.
All memberships are based upon individual memberships. The cost of a Yelm Senior Center Membership is only $3 a month, $36 a year. With your membership you get free access to exercise classes and games.