To be counted as an active member, an individual must be a publisher, and report some amount of time preaching to non-members.
Jehovah's Witnesses' preaching activity is self-reported, and members are directed to submit a 'Field Service Report' each month.
[3][4] Jehovah's Witnesses' official statistics only count as members those who submit reports for preaching activity, usually resulting in lower membership numbers than those found by external surveys.
According to official statistics, about 21 million people worldwide attended Jehovah's Witnesses' 2024 observance of the Memorial of Christ's death (also termed the Lord's Evening Meal).
Congregations are generally organized geographically, and members are directed to attend the Kingdom Hall to which their neighborhood has been assigned, resulting in an ethnic mix generally representative of the local population, though congregations based on language and ethnicity have also been formed.