Squibs

[catlady_de_los_angeles]

No: HPFGUIDX 42109

Karen de Danaan wrote:

<< Also, does anyone have any idea what the rate for sqib births are 
in comparison to births of children with magical ability? Are sqibs 
rare or fairly commonplace? >>

In CoS, Ron explained to Harry: ""A Squib is someone who was born 
into a wizarding family but hasn't got any magic powers. Kind of the 
opposite of Muggle-born wizards, but Squibs are quite unusual."  

My post #41509 offers a theory of inheritance of magic which explains 
Squibs and predicts an increase of Squibs in the classes younger than 
Ginny's. 

Jim Ferer wrote:

<< We've been told by JKR that Hogwarts is the only magical school in 
the UK, yet estimates of the number of students ranges from 300-1000. 
My daughters' elementary school has 460 students; it's one of eleven 
such schools in a town of 60,000 people.  >>

5060 students (K thru 6 = 7 years, some as Hogwarts?) / 60,000 
population ::: 1000 students = 12,000-odd population. Wizarding folk 
live twice as long as Muggles ::: 24,000 population. Larger than the 
20,000 I estimated, based on how many people are needed to have all 
those shops and businesses.