I want to start a band. I don't know how in this situation though?

I'd recommend you learn one of the instruments yourself, that way you won't need to look for as much people.

juss ask around, like ask your friends if they no anybody who plays a instrument, and have your friends ask their friends...like just get the word out that your trying to be a musician and people will start recognizing you but as a solo artist, and a diffrent genre of musik idk wut other suggestions icould tell you

look at various ads on facebbok myspace craigslist, joinmyband.com is a good one Ive been in various bands (Rightfoot Pink, Stop Sign Sorrows, Last Call Brawl coverband, and Atomic Penguin) since my middle school days which was like 7 years ago lol but you will need your own equipment, a place to practice and reliable transportation. Email me or IM if you want/need more help or advice

Well you're young. I recommend you put the hard work and effort into learning how to play guitar or piano. Imagine how awesome it would be to play and sing your favorite songs whenever you want. You'll thank me when you're 20

One thing that makes this tough is your age. Where I live there are no clubs or other venues that someone under 18 could perform at, so that makes it impossible to join a real working club band. Good lead vocalist are very hard to find, so once you are old enough you will be able to find a band. For now you're more looking at a garage band type situation and that's cool, it's where we all started. The best way to find other musicians is through your local music stores. They usually have a board for musicians to post on when looking for other musicians. Also just hanging out at the local shops never hurts. You might just meet someone there that's interested. As far as school, you shouldn't need to put up fliers to find musicians in your school, just start asking around. Great bands are generally formed by word of mouth. A musician gets out there and makes a name for them self and sooner or later other talented musicians will seek them out due to their reputation. The best thing you could do is make some sort of demo CD. It's easy to tell people you're a lead singer, but you may never get the chance to sing with them to prove it. If you could hand over a CD and say "here's what I can do", that goes a long way.

go to your local music stores, they usually have bulletin boards set up, bands needing musicians and musicians needing a band. you've got plenty of time to make it big only being a freshman in high school, so dont worry about it. I've been in too many bands to count since I was your age. work hard and don't give up the dream!!!