The Classes + Fanmade Districts
The Working Population is the average citizen in the Capitol, taking up the well majority of the population. it is technically the middle class by our standards, but in the Capitol it is the lower class since doctors, pilots, and architects and stuff are middle class only
so, though most of the hard labour and work are given to the Districts, there are jobs that the Districts can't serve to the Elite directly in the Capitol (like cooks, cleaners, drivers). of course, a good amount of these jobs are taken by avox, but there isn't possibly enough war criminals/caught runaways to serve the entire Elite population
plus, avox are really only owned and work for very rich and high above people, like the richest of the rich, and game staff. Snow honestly wanted to be a bit more of an asshole so instead of having Working Population servants he made sure that avox would be the only ones serving the tributes and Victors
jobs that the can Working Population cover are: teachers, maids, cooks, cleaners, babysitters, cleaners, basically most jobs where they work for a specific person/family/group of people
and, before the Hunger Games era, like way before, a few decades after Panem's creation there were more districts (literally self indulging from my fanmade Districts au). and a good amount of them joined the Capitol
Fanmade Districts (that disbanded and spread)
District 14: medicine. doctors, nurses, and medical scientists were all trained here and experiment in labs for new types of drugs/equipment/medicine that can be used for people. there is also the biggest hospital in Panem there, and there are factories that mass produce medicinal supplies like basic equipment and some drugs. this District was so incredibly loyal (rich and very important as well) to the Capitol they eventually joined in and became a sub-class
District 15: plastic/rubber production. basically factories that would mass produce these materials. all kinds of plastics and all kinds of rubber (plus in the future they make more biodegradable types of plastic). eventually, these factories were included in District 1 territory and joined them, becoming their lower class
District 16: tool production. basically blacksmiths who make axes, pickaxes, knives, hammers, scythes, machetes, and all other types of tools that would be used in other Districts. eventually this was moved to be mostly District 2's job, but there are still small groups of blacksmiths across all Districts that require such tools
District 17: animals. basically exotic animals and mutts. since in the future, there are many animals that naturally went through evolution, there are many useful but dangerous animals. this District basically took them, got stuff that benefited them such as, more healthy/nutrient full meat, harder and more powerful bones for good weapons/furniture, blood and poisons for medicine, etc. this eventually became another sub-class in the Capitol
District 18: research. this District was formed pretty later, like a lot later. this was more of historic research and entertaining scientific research, nothing that would really benefit the Capitol or Panem, but it was interesting (yeah, there's zodiac scientists and etymology nerds). this District was even smaller than 12, and was kind of useless. the Capitol liked them though so they let them join, they joined either Elite class or Working Population though
District 19: food. y'know those frozen foods you keep in your freezer and then warm up in a microwave? or cup ramen you just boil with water. most of those foods are probably made in factories, and that's what this District was for. there's also cheese factories and other factories for cleaning, cooking, and sanitizing foods. eventually, this job was spread out evenly throughout Districts 3, 7, 9, 10, 11, and some in the Capitol
District 20: oil and gas. yeah, car shit. there was more found eventually even after we ran out. gas was eventually stopped being used, but it did take a while to create generators. oils have their own factories in almost all Districts, stuff like coconut oil is One's job, but food oil is a mix of Seven and Eleven, maybe even a bit of Ten. anyways, not many of them made it to the Capitol
District 21: landfills/recycling centers. easy enough to understand, these people actually live terribly, though the work was split between the Capitol, some of District 3, and some of 5. imagine Wall-E, toiling away packing garbage, that is what they do. this District was split in half between landfills and recycling centers and have very different cultures/ideals, I'll make a post about them someday
District 22: entertainment. movies, video games, athletes, hell, authors if Capitol people read enough (jkjk, they do surprisingly). but yeah, this District ended up being split between the Capitol and District 1, a bit to District 3 for stuff like the metaverse or animatronics or cheap amusement parks