User blog comment:PitaKang/FANFIC! :D Muggles vs Wizards!!!!/@comment-4207136-20120825083713

Also, the issue with wizard numbers. If there are 1000 Hogwarts students (JK stated), a 90% attendance rate in GB (book) and an average life expectancy of 137.5 years (movie). Then there are about 22,000 wizards in Britain. With that estimate for the world popluation we get a worldwide population of about 2.6 million wizards. Taking out under 20s makes this number about 2 million. Therefore its a 1:3500 ratio. However with the average military population of a nation at about 0.6% (including reserves) that means about 42 million people worldwide would be able to fight straight away reducing the ratio to 1:21. However a couple of charms to protect oneself and a nice curse would easily kill a lot of people at once (Wormtail in the book killed ~30 people with one curse). So... it could go either way. Also think of the panic in the military when they realize their family could get attacked tonight... stay or try to protect them?