Well I'm super late to this party but I'm participating anyway; here goes. If anything on this list offended you, good, I did my job.
Alabama: Camo-wearing, dip-chewing, buck-hunting, truck-driving 'good ol' boy' who blasts country music and hangs out pretty much exclusively with his girlfriend Mississippi and his bud Texas.
Alaska: The kid who is kind of a loner, people think he's just a bit weird but likeable. He wears gym shorts even in winter. Hangs out with Washington, Oregon, and Colorado to light up, who all find him pretty chill.
Arizona: Pretty straight-edge Christian girl who makes lots of unintentionally racist comments, offending New Mexico on the daily. Or maybe they are intentional. Who knows?
Arkansas: This is one of the 'country' kids but he's just a straight-up weirdo. Wears only overalls to class, missing a couple teeth, doesn't much talk with anyone but seems to dislike Missouri for some reason.
California: The really cool, really pretty chick who is a bit of a valley girl, dabbles in the drama club, but mostly wants to be a singer. Comes from a rich family, is friendly rivals with New York, but less obnoxious. One of the only students who will stand up to Texas.
Colorado: Has a bit of a reputation as a stoner but really doesn't light up as often as his friends do. Really cool, chill, likable, but also kind of a nature/sports nut, loves to hike and camp and ski and doesn't play on the football team but goes to every game. Overall just an awesome guy.
Connecticut: One of the preppy kids from the 'New England' clique. Best friends with Massachusetts. Comes from a rich family but is a slacker, kind of stuck up.
Delaware: This is the kid that really blends in to the background. A little nerdy but likeable if you talk to him. "Delawho?" is his nickname.
Florida: The kind of weird girl who seems a little self-obsessed. Sometimes hangs out with the 'country' kids but doesn't really seem to fit in pretty much anywhere.
Georgia: A religious African-American girl who can sometimes be a bit too upfront about her religion but is actually pretty sweet if you talk to her.
Hawaii: A rich kid but totally chill and nice to everyone. Has a thing with California. If you get invited to his house get ready for the most fun night ever in his mansion. Is on the swim team, bit of a 'surfer dude' and really attractive and popular but not stuck up.
Idaho: "Idawho?" Idaho is a kind of normal kid who just blends into the background. He's outdoorsy though and has a crush on Montana. Doesn't really have a lot to say about anything.
Illinois: He's a 'city kid'. Dresses with 'swag', listens to his music loud in his pimped out ride, is considered kind of obnoxious by lots of students, but still very popular, to the point of getting to hang out with California and New York.
Indiana: Quiet white kid who is on a lot of sports teams and is pretty well-liked because of that. Keeps his love of NASCAR a secret.
Iowa: Iowa isn't really 'country' but actually grew up on a farm and doesn't hang out much with anyone because he needs to go home and help his family run the farm. Kinda quiet, but really nice and only really talks to Nebraska and Missouri.
Kansas: Literally just a lame kid. He isn't interesting, doesn't have anything interesting to say, and isn't particularly nice either. Always tries to start fights with Missouri to seem cool, but Missouri is having none of it.
Kentucky: A sporty, somewhat conservative kid who is already kind of a heavy drinker, and hangs out with the significantly more popular Tennessee.
Louisiana: Throws INSANE parties, and cooks fucking awesome food. A bit of a bumpkin but always awesome to hang out with.
Maine: Pretty normal, middle class girl who used to be in a committed relationship with Massachusetts. Kind of hangs out with the 'New England' clique but would rather hang out with her Province and Territory cousins with Minnesota.
Maryland: Pretty normal girl who has been in a serious relationship with Virginia for as long as anyone can remember. Literally the only kid who regularly hangs out with Delaware.
Massachusetts: Preppy kid, straight As, leader of the 'New England' clique who all are trying really hard to get with New York but Massachusetts got to second base with her once so he's considered a baller by Connecticut and the guys. Actually a pretty nice guy overall, might have a bit of a gay side too but no one is sure.
Michigan: Kind of poor, but also a trouble-maker. Doesn't really hang out with anyone except Wisconsin. Probably suffers from bi-polar disorder.
Minnesota: Chill guy who is outdoorsy and liked by the nerds, hipsters, stoners, sports-players. Bit of a hippie but is mostly seen hanging with his Canadian cousins.
Mississippi: Alabama's trashy girlfriend. She also chews, goes mudding with Alabama, wears camo and is just overall not very pleasant.
Missouri: Not really a redneck but not really a city-kid either. Friendly with Iowa, nice but not too outgoing. Stubborn though, and swears up and down he makes the best BBQ in school. And he's right. Hates Kansas. Kansas is a douche.
Montana: Outdoorsy girl who likes horses too much. Kind of obnoxious but well-meaning and nice enough. Hangs out with Idaho but oblivious to the signals.
Nebraska: A kid who doesn't really have a best friend but has something in common with a lot of people. Helps Iowa on his farm, watches football with Colorado, goes hiking with South Dakota, chills with Missouri sometimes. The kind of guy who is probably up for anything within his little group of friends.
Nevada: Kind of a wild card. Slick, has a bit of a gambling problem and might also be a bit of a klepto. Comes from a well-off family, who may have gotten their money through... deeds of questionable legality, and he seems eager to follow in their footsteps. Dreams of hooking up with California but that seems unlikely.
New Hampshire: Another 'New England' preppy kid. Actually a pretty darn good student, and more laid back and less stuffy than MA and CT. Best friends with Vermont, to the point where people often mix up the two. Kind of quiet and a homebody, so often people don't really know what he's up to.
New Jersey: This bitch is obnoxious. Spray on tan, loud as hell, hangs out with New York and tries so hard to be her. Wants to ride Pennsylvania's dick so bad.
New Mexico: Hispanic kid who sits next to Arizona in social studies and can't stand that judgmental bitch. Just wants to do well in school and be liked, but people tend to assume he is some sort of criminal. Colorado likes him a lot though. Also harbors a secret fascination with UFOs.
New York: Queen Bee. Popular, pretty, obnoxious, drama queen, active in theatre. California finds her annoying sometimes but they are friends. New York might be a little crazy but damn she's got a sweet ride, a sweet house, and a sweet bod. Pretty much the most popular girl in school, hands down. Invited the whole damn school to her Bat Mitzvah and threw a fit when Texas showed up trashed.
North Carolina: S. Carolina's older, cooler brother. The two don't get along. Plays football, drinks with Kentucky and Tennessee. A bit wild, but nice enough.
North Dakota: Emo kid in the back of class. N. Dakota doesn't talk to anyone and aims to keep in that way.
Ohio: Energetic and loud, but not really obnoxious. Friendly and a basketball maniac. Always has something to say and hangs out with his best bros Indiana and Pennsylvania.
Oklahoma: Quiet, Native American kid who secretly hates all of you. One of these days he is going to go snap and go apeshit on Texas.
Oregon: Oregon is total hipster chick. Kinda pretentious, but still hot. Nose stud, bisexual, vegan, soy, smokes hella weed, reads John Green, does theatre, loves nature walks, the whole shabang. Probably fucking Washington, whom she hangs out with almost exclusively, and also good friends with Colorado.
Pennsylvania: Might come off as rude or dickish but actually pretty cool. Practical, hard worker, loves sports and also a bit of a history buff. Best friends with Ohio, might be the only person in school to have actually gone all the way with New York, and for that he will be cool for all time.
Rhode Island: The croney of the 'New England' clique. From a rich family, but short and scrawny and just kind of goes along with whatever the gang is doing.
South Carolina: The younger Carolina brother. Not friendly with North. He fancies himself a 'country boy' and tries to hang with Alabama and Texas.
South Dakota: Twins with N. Dakota, but a lot of people don't even know that because they are so different. South Dakota loves nature. He lives for it. He is a boy scout, an avid camper and will probably end up being a park ranger. Takes Colorado and Nebraska camping a lot.
Tennessee: Bit of a country boy but also is great with his guitar. He takes it with him everywhere and busts it out all the time, and makes girls wet. Likes to drink and party but pretty chill, mostly hangs out with Kentucky.
Texas: Star football player, cowboy-hat-and-boot wearing, camo loving, gun toting,