Which religion has the smallest number of adherents?

Which religion has the smallest number of adherents?

• A. Hinduism
• B. Buddhism
• C. Judaism
• D. Islam

Answer: (C)

Understanding relative religious populations helps explain why Judaism has the smallest number of adherents among these options. Judaism has roughly 15 million adherents worldwide, far fewer than Islam, Hinduism, or Buddhism. Islam is typically counted around 1.9–2.2 billion, Hinduism about 1.2–1.5 billion, and Buddhism around 500–600 million, depending on counting methods. Even with variations in how people are counted, Judaism remains the smallest. This reflects historical patterns such as lower birth rates in many Jewish communities and fewer conversions compared with the other faiths, along with strong cultural/ethnic continuity. In short, the global population sizes of these religions differ enough that Judaism stands as the smallest among them.

Understanding relative religious populations helps explain why Judaism has the smallest number of adherents among these options. Judaism has roughly 15 million adherents worldwide, far fewer than Islam, Hinduism, or Buddhism. Islam is typically counted around 1.9–2.2 billion, Hinduism about 1.2–1.5 billion, and Buddhism around 500–600 million, depending on counting methods. Even with variations in how people are counted, Judaism remains the smallest. This reflects historical patterns such as lower birth rates in many Jewish communities and fewer conversions compared with the other faiths, along with strong cultural/ethnic continuity. In short, the global population sizes of these religions differ enough that Judaism stands as the smallest among them.