How many students go to Hogwarts?

Actually, there are five girls in Harry's year. J.K. Rowling refers to them as the " two missing Gryffindors". Before she started writing, she made a list of 40 students who would be in Harry's year. She said that she intended mais students per year, but we don't see that. This means we know for a fact that there are at least 40 students per year. 40 x 7 = 280 students. 280 is the number I go by, but there is a possibility that there are a bit more, considering J.K. Rowling intended mais than 40 students per year.

No one -- not even JK -- knows for sure how many students are in Hogwarts. JK once said that she estimated about a thousand students, but also admitted that her math could be "a little off."

Also, just because Harry doesn't mention them, doesn't mean they don't exist. Between books one and five, we only hear about one boy being one ano a head of Harry in Gryffindor -- Cormac McLaggen. Obviously, there's mais than one Gryffindor boy in that year. Just like how the only fifth ano boy we hear about in book one is Percy, but he's obviously not the only boy in his ano either.

If they don't interact with Harry, we don't hear about it. That doesn't mean they don't exist.

Why are you assuming that each ano and each house has the same number of students, based on Harry's year? There might have been mais magical children born in one ano compared to another. The houses wouldn't contain the same number of students, because sorting is por personality traits not por just sharing out the students equally. Also, the dorm rooms would probably be magically altered each ano to fit the correct number of students.

I know the filmes are not canon. Yet, considering that there would be about 10 or 12 students in each ano in each house (close to your own computation), that would make about 40 students in each year, all houses combined. That's quite a big class to handle.

While it may be possible in some classes (Charms or Transfiguration, for example), I think it wise they dividido, dividir the class for something like Potions, that is Prof. Snape would have about 20 students each time, which is still quite a good deal to look after in such a class, for a topic that requires a lot of attention from his part.

Given the length of each mesa, tabela in the Great Hall (yet, still non canon as this is from the movies), we would have about 70 to 80 students in each house. This times 4 = 280 to 320 students. Let's round it up to 300 students at Hogwarts. That would be consistent with an estimated British wizarding community of about 3,000 witches & wizards (I've read that somewhere, can't remember), that is 10%. (Not counting goblins and house elves.)

Just my 2 knuts.

Well the first problem with everyone's math is they start por calculating the people in each ano based on the amount of people in Harrys dorm room. Now granted this is the largest limiting factor on the amount of students possible. This is because if you look at Gryffindor Tower it is one main tower with two smaller towers attached, these being the dormitories. Each side, girls and boys, is said to have seven floors, one for each year. When we look into a dorm room we would see only four or five beds. Now lets step back for a segundo and look at the entire school. The high school I went to had a total of 2,740 students in it that's around 685 per year, with roughly 22 classes for one ano going on at any moment. Now applying this math to Hogwarts we get two main limiting factors, amount of teachers and amount of beds in a dorm room. The teachers have their own mesa, tabela at the front of the dining hall to where they sit and everyone assumes that these are the only teachers but if we see them as just heads of departments this opens up for many mais teachers to possibly be there just not at the head table, so one factor explained, onto the next. Dorm rooms, we see in the filmes and guess from the books there is only five kids to a room and assume their is only those five boys and five girls to a year, but people this is a world of magic. With magic there is the possibility that the doors are DNA coded. This means that there is maybe 6 different dorm rooms for ano 2 males stacked "on top" of each other and when a male student grabs the door handle it opens his room, after he closes the door another student can grab the handle and open it and would find his room without the same guy, of course it could go por intention. If you wanted your room you open the door to your room but if you wanted a friends room you open the door and get his room. With the concept of "stacked" dorm rooms in the same o espaço it opens up the possibility, again, for mais students, and really Hogwarts can house, teach, and feed that amount. Going with the possibilities I have given J.K.'s statement of "there is a thousand students at Hogwarts" is now possible and no longer the largest plot hole in book history. But this is only me thinking in theory of magic and that personally I would like for their to be mais the 280 students at the school, 10 per year, 70 per house, 280 total.

Long story short, J.K Rowling is absolutely dreadful at maths, *To her credit, she does admit this whenever numbers are mentioned* and thus you should probably just imagine how many are at Hogwarts for yourself.
She said at one point that about a thousand go to Hogwarts, but that doesn't make sense with the other figures we have, so who bloody knows?

In the fith Harry Potter book Harry goes into one of Snape's memories which is of an OWL exam. He said there is around 100 tables and each student has a mesa, tabela to themselves. So, providing that everyone in fith ano is doing the charms exam there would be around 25 pupils for each house. (100/4=25) so as there are 7 years to Hogwarts there would be on average 175 pupils in each house. (25*7=175) so with 4 houses there would be 700 pupils in the school. (175*4=700) Baring in mind that was when Snape was at school so pupil numbers may have increased/ decreased.

JK Rowling said that it was about 1,000. In one Quidditch match, 200 Slytherins were watching. So I'll go ahead and say that there are between 800 and 1000 Hogwarts students. This makes for 114-142 students per year, or an average of 29-36 per house per year. Now, Harry's ano of Gryffindors was rather small, but this could just be that in his particular year, the Gryffindor class was on the smaller side. However, I would still have to say that the total number is about 800. From my earliest two references, it couldn't really be much less.