This article lists the population estimates and all known fatalities from the The 100 TV series.
- Main article: Grounders
It is unknown how many Grounders are in the area. There are 12 Clans as well as an unknown number of nomadic Grounders. Altogether, they have the highest population count by far of the residents in the Tondc-Mount Weather area, with a combined army numbering in the thousands (Azgeda alone had over a thousand warriors).
In "Long Into an Abyss", Lexa confirms that Clarke Griffin burned 300 of her warriors in "We Are Grounders (Part 2)". In "Human Trials", Finn Collins massacres 18 villagers in Tondc. In "Rubicon", Cage Wallace sends a missile to Tondc, killing 250 Grounders and Sky People. In "Hakeldama", Charles Pike, Bellamy Blake, Hannah Green, and the rest of Farm Station massacre 299 sleeping warriors.
After the Second Nuclear Apocalypse, the Grounders population has been reduced to 1,104; 1,100 Grounders plus Niylah in the Second Dawn Bunker, Echo and Emori in the Go-Sci Ring, along with Madi on the ground.
In Season Five, Grounders and Sky People merged into one clan named Wonkru, so it became harder to track Grounder-specific casualties. Assuming that the rates of surviving for both groups are equal, then by "Pandora's Box", Wonkru's population dropped to 814 which leads to approx. 750 Grounders. After the Battle for Eden, the numbers for Wonkru decreased even more with a remaining population of around 365. Continuing with the rates, this gives approximately 335 Grounder survivors, excluding Madi, Echo and Emori.Season Seven, 12 members of Wonkru were killed in "Blood Giant"; 9 were killed by Disciples on Bill Cadogan's order and 3 others were devoured by the Sanctum bugs. This left approx. 320 Grounders. Most of the remaining Grounders transcended along with the rest of the human race in "The Last War", leaving behind only 5 Grounders: Indra, Emori, Niylah, Gaia and Echo.
- Main article: Delinquents
Not including Bellamy Blake, there were 100 Delinquents sent to earth in "Pilot". After 7 deaths and after Raven Reyes's arrival in "Twilight's Last Gleaming", there were 95 Sky People on earth. Before the battle at the end of "We Are Grounders (Part 2)", Bellamy and Clarke state there were 18 dead and 82 alive. (The total ignores two people.)
After the battle, only 48 Delinquents were taken to Mount Weather, leaving behind Bellamy, Raven, and 6 other Delinquents. By the end of "Blood Must Have Blood (Part 2)", there are 46 Delinquents left along with Bellamy and Raven. At the end of "Perverse Instantiation (Part 2)", there are 44 remaining Delinquents along with Bellamy and Raven.
After the second season, the delinquents were no longer a separate group and therefore harder to identify. At least two delinquents died during the third season. Several die during the events of the fourth season, including Bree and Jasper Jordan who commit suicide as the death wave approaches.
By the end of fourth the season, there are only six delinquents confirmed alive: three went to the Go-Sci Ring, two surviving within the Second Dawn Bunker, and one living in Shallow Valley. Because there are only sixty confirmed deaths, the status of thirty-four delinquents remain unknown. If any of them remain alive, then they would have also survived within the underground bunker. At least four other delinquents had their names on Clarke's list, but it is unknown if they made it to the bunker and it is unknown if they survived the events of the following six years inside of the bunker. The Delinquents aboard the Ark formed a new group that they called Spacekru with Echo and Emori.
At least 2 delinquents died in the fifth season. Harper McIntyre died of her father's genetic condition aboard Eligius IV thirty years after the Damocles Event and Monty Green died sometime later of old age.
In "The Face Behind the Glass," Clarke Griffin was apparently killed after she was mind wiped by Russell Lightbourne to become Josephine Lightbourne's new host. However, it's revealed in "Memento Mori" and "Nevermind" that she survived due to having A.L.I.E.'s neural mesh from when she entered the City of Light to destroy the AI. Clarke later temporarily dies in "Matryoshka" when Gabriel Santiago stops her heart to remove the Mind Drive, but she is revived shortly thereafter by Bellamy. John Murphy also briefly dies in "Red Sun Rising" of seaweed toxin, but is revived by Cillian at the beginning of "The Children of Gabriel." By the end of Season Six, all of the surviving Delinquents remain alive, having lost no one aside from Clarke's brief believed death and her and Murphy's temporary deaths. However, Octavia's fate is left unknown after she is stabbed by Hope Diyoza and disappears into the Temporal Anomaly. She is later revealed to be alive, having been transported to Bardo through a locator tag that she was injected with.
In "Welcome to Bardo," Bellamy is apparently killed in a grenade explosion, but his actual fate is left unclear as he may have also been blown through the open Anomaly that was behind him. He is later revealed to be alive, the explosion having blow him through the Anomaly to Etherea.
In "Blood Giant," Bellamy is shot and killed by Clarke when he refuses to relent.In "The Last War," humanity achieves Transcendence including any surviving Delinquents aside from Clarke. However, Murphy, Octavia and Miller, the three confirmed surviving Delinquents aside from Clarke, choose to return to human form and live out the rest of their lives on Earth.
- Main article: Sky People
Chancellor Jaha mentioned in "Contents Under Pressure" that there were 2237 people on The Ark but they only have enough Exodus ships for 700 to get to Earth. In "Unity Day", Diana Sydney's dropship escape costs the lives of hundreds of Arkers as well as everyone on board her dropship. It is estimated in "The Calm" that there were no more than 1,000 survivors and at least 1,500 dead as a result.
Project Exodus then took place and the Ark was brought to the ground. An estimate of how many survivors of the Ark made it to the ground in "We Are Grounders (Part 2)" is unknown since there are still several missing stations as of the Season Two finale. So far, Mecha Station, Alpha Station, and Factory Station are the only three stations with known survivors with Factory Station having only one survivor, Mel.
In "'Wanheda (Part 2)"', it is discovered that Farm Station survived the landing with no casualties, however, after four months trapped within Azgeda territory, only 63 Sky People survived from three times that many. In "Ye Who Enter Here", 49 Sky People are killed when Mount Weather's self-destruct sequence is initiated.
After the Second Nuclear Apocalypse, the population of the Sky People has been reduced to approx. 102-105; 96-99 people in the Second Dawn Bunker, Bellamy Blake, John Murphy, Raven Reyes, Monty Green and Harper McIntyre in the Go-Sci Ring, along with Clarke Griffin on the ground.
In Season Five, Grounders and Sky People merged into one clan named Wonkru, so it became harder to track Sky People-specific casualties. Assuming that the rates of surviving for both groups are equal, in "Pandora's Box" the Wonkru population dropped to 814 which leads to approx. 70 Sky People.
After the Battle for Eden, the numbers for Wonkru decreased even more with a remaining population of around 365. Continuing with the rates this gives approx. 30 Sky People survivors at the end of Season Five, excluding Clarke and 3 Sky People in Spacekru (Monty and Harper died while the others were in cryosleep).
In Season Six, the Sky People lost Marcus Kane due to his injuries from Michael Vinson. Kane was resurrected in the body of a young man named Gavin through a Mind Drive, but chose to commit suicide by floating in "What You Take With You" rather than continue to live on in another man's body. Abigail Griffin died when she was mind wiped in "Adjustment Protocol" to become the host of Simone Lightbourne.
In "Blood Giant," Bellamy is shot and killed by Clarke when he refuses to give Madi's drawing book to her.Most of the remaining Sky People transcend along with the rest of the human race in "The Last War", leaving behind only 6 Sky People: Clarke Griffin, Octavia Blake, Raven Reyes, Eric Jackson, Nathan Miller and John Murphy.
- Main article: Mountain Men
Dr. Lorelei Tsing mentioned in "Long Into an Abyss" that there are 382 Mountain Men living inside of Mount Weather. In "Coup de Grâce", however, the number drops to 380 when a sniper from Mount Weather is killed by a Grounder and Sgt. Lovejoy is killed by Bellamy Blake. Emerson mentions in "Bitter Harvest" that during the final battles for Mount Weather, 381 people were killed: 182 men, 173 women, and 26 children, which means that Emerson is the only one to survive from 382 to 1.
In "Rubicon", Bellamy creates a radiation leak that causes the deaths of eleven Mountain Men (including Dr. Lorelei Tsing), and that puts the number of Mountain Men to 369. By the end of "Resurrection", two guardsmen are killed by Bellamy, one sniper is killed by Clarke Griffin, and five guardsmen are killed by the Delinquents in the mess hall, leaving only 361 Mountain Men left. In "Bodyguard of Lies", at least 6 more Mount Weather Guards are killed in the Acid Fog machine explosion, leaving the total at 355 Mount Weather residents.Several more Mountain Men are killed during the Delinquent sweeps, the skirmishes on the ridge above the door and at the dam, and when they take another group of Sky People captive during "Blood Must Have Blood (Part 1)". After Clarke and Bellamy irradiate Level 5 in "Blood Must Have Blood (Part 2)", all of the Mountain Men die except for Cage Wallace and Carl Emerson. After Cage is killed by Lincoln, Carl Emerson remains the sole survivor of Mount Weather. However, Emerson is later on killed by Clarke in "Demons". His death marks the extinction of the Mountain Men. In the same episode, Emerson gives the number of Mountain Men killed by Clarke as 381. However, he may have simply been blaming her for all the deaths during the war, not just the people she directly killed.
- Main article: Eligius Prisoners
Bellamy Blake mentioned in "Sleeping Giants" that there were originally 337 passengers living on Eligius IV. There were originally 300 prisoners, 25 guards, and 12 crew members. After the mutiny orchestrated by Charmaine Diyoza, the guards and crew were all killed save for Miles Shaw, reducing the number to 301.
As a result of conflicts on Earth, the number dropped to 37 prisoners who surrendered to Wonkru and went to cryo as confirmed in "From the Ashes." 36 were in Sanctum, while Charmaine Diyoza went missing on another planet.
In "The Flock," one of the prisoners is shot and killed by a member of Wonkru after they take hostages, further reducing their number to 32.The Last War," humanity achieves Transcendence including all of the surviving prisoners.
- Main article: Primes
The Primes were originally Mission Team Alpha, a 13 person team made up of scientists and their families who were sent from Earth via Eligius III to study and colonize Sanctum. During the first Red Sun eclipse, Russell Lightbourne went insane and attacked the other team members, killing several including his wife Simone and daughter Josephine. Over the next 25 years, Russell and Gabriel Santiago worked to find a way to bring back those they lost, eventually discovering a way using the Mind Drives and Nightblood hosts. The Primes became the rulers of Sanctum, worshipped by their followers as living gods. When a Prime died, their Mind Drive would be safeguarded until a new Nightblood host could be found for them to be resurrected in. However, Gabriel eventually abandoned the Primes out of guilt and founded the Children of Gabriel to stop them, destroying the remaining Nightblood embryos and becoming branded a demon by the remaining Primes.
When Eligius IV arrived in Season Six, most of the Lee family were killed following an attempt to take over the ship. After discovering that Clarke was a Nightblood, Russell turned Clarke into a host for his daughter Josephine, apparently mind wiping Clarke in the process and sparking a conflict with Clarke's friends. In turn, Josephine killed Kaylee Lee and prompted her mother to delete the Mind Drives of the Lee family, permanently killing them. As the conflict raged, several Primes were killed, particularly Josephine whose consciousness was destroyed by Clarke who survived due to having A.L.I.E.'s neural mesh. After being given Nightblood by Abby, Russell was able to resurrect all of the deceased Primes, including those who died in the conflict aside from the deleted Lee family and Priya and Ryker Desai. However, Simone Lightbourne, Miranda, Caleb and Jasmine Mason were floated by Clarke, sending their bodies into deep space where they couldn't be recovered and preventing them from being resurrected again. As of "The Blood of Sanctum," the only living and active Primes are Russell Lightbourne and Gabriel Santiago. However, Priya and Ryker's Mind Drives remain intact, leaving open the possibility that they could be resurrected again in the future.
In "From the Ashes", a depressed and suicidal Russell smashed Priya's Mind Drive, killing her permanently. Russell was later killed in the Mindspace by Sheidheda who had downloaded himself into Russell's Mind Drive when the Flame was deleted, allowing Sheidheda to resurrect himself in Russell's last host. As a result, the only remaining Primes are the dormant Ryker and the defected Gabriel.In "A Sort of Homecoming," Gabriel is killed by Sheidheda, leaving all of the Primes either dead or dormant. After most of the human race transcends in "The Last War", Ryker is assumed to be effectively dead as he did not have a living host at the time, leaving the Primes extinct once and for all.
- Main article: Sanctumites
Sanctum was founded by Mission Team Alpha, later the Primes, using a thousand embryos genetically modified to have Nightblood to protect against solar radiation. The population of Sanctum grew in number during the following two hundred years, yet their demographic growth appears to have been hindered by the Oblation, instated by Josephine Lightbourne to prevent the Nulls from multiplying, the sacrifice of numerous hosts to the Primes, as well as the schism with the Children of Gabriel and the ensuing war. While the Primes originally had a thousand embryos, the remaining embryos were eventually destroyed by Gabriel in an attempt to stop the resurrections of the Primes.
The exact number of citizens, Royal Blood carriers and Nulls who are living in Sanctum is unknown, but several hundred could be seen in attendance during the Naming Day of Delilah Workman in "The Face Behind the Glass". However, some of their numbers were killed after "The Blood of Sanctum" due to the Adjustment Protocol massacre. Though Clarke and her friends saved as many people as they could, it is unknown how many citizens died in the massacre.
In Season Seven, the remaining fanatics loyal to Russell Lightbourne began calling themselves the Faithful. One fanatic, Tobin, was beaten to death by his own people in "False Gods" after a failed assassination attempt on Sheidheda posing as Russell, part of the Dark Commander's plan to prevent his execution. In the same episode, a friendly young woman named Cora died when James Crockett caused Sanctum's nuclear reactor to begin melting down, killing them both. In "Welcome to Bardo," another fanatic committed suicide by self-immolation as part of a plot by the Faithful to force the release of "Russell."
In "The Flock," Sheidheda brutally slaughters about 28 of the Sanctumites after revealing to them his true identity.The Last War," humanity achieves Transcendence including all of the surviving Sanctumites.
Children of Gabriel
- Main article: Children of Gabriel
It is revealed in "The Children of Gabriel" that there is another colony living on the moon in the woods. There are a few dozen people distributed in small groups, but the exact population numbers are unknown.
In "The Stranger," the Children of Gabriel all refuse to kneel before Sheidheda even though it means their deaths. The Dark Commander massacres the group with an assault rifle, though he initially spares their leader Nelson to give him a chance to change his mind. When he still refuses to, Sheidheda kills him too. In the aftermath, Indra discovers one survivor amongst the corpses, Luca, a teenager who had been a part of the group. Indra rescues Luca and takes him to Murphy and Emori for protection. Following this event, the only surviving members of the Children of Gabriel are Luca and Gabriel Santiago who was on Bardo at the time of the massacre.
In "A Sort of Homecoming," Gabriel is killed by Sheidheda as well, leaving Luca as the only surviving member of the Children of Gabriel.In "The Last War," humanity achieves Transcendence including Luca.
- Main article: Disciples
A mysterious group from Bardo introduced in "From the Ashes." Humans with advanced technology, not much is known about them aside from the fact that they can control the Temporal Anomaly, are fanatically religious in some manner and are led by a man named Anders. It is suspected by Gabriel Santiago that like the Sanctumites, they are the descendants of an Eligius III colony mission. In "Hesperides," it is revealed that they worship a powerful figure they call the Shepherd that saved them from the fire that destroyed the Earth. In "Welcome to Bardo," its revealed that the Disciples are not from Eligius III but rather they came through the Anomaly from Earth itself. In "The Queen's Gambit," its revealed that the mysterious Shepherd is Bill Cadogan, the leader and founder of the Second Dawn doomsday cult who is still alive, kept in a cryopod on Bardo. In "The Stranger," it is stated that dozens of Disciples have lost their lives in the conflict with Clarke and her friends.
Characters with the highest known body counts as depicted or mentioned in the series.
|A.L.I.E.||Almost 11 billion|
- Marcus Kane (to Charles Pike): "63? Farm Station left orbit with three times that number."
- — in Wanheda (Part 2)
- Octavia Blake: "There must be thirty of them in here."
- Charles Pike: "Thirty-six but the more the merrier."
- — about the Farm Station survivors living in Mount Weather in Ye Who Enter Here
- Indra: When you destroyed the City of Light, there were a thousand Azgeda warriors inside the city of Polis."
- — in Echoes
- Bellamy Blake: "Murder, murder, murder, arson resulting in murder, armed robbery resulting in murder. 300 inmates, 25 guards, and 12 crew."
- — about the passengers about Eligius IV in Sleeping Giants
- Charmaine Diyoza: "283 lives for one. She must be pretty important to you."
- Bellamy Blake: "She is."
- — about the prisoners in cryo-sleep compared to Clarke Griffin in Sleeping Giants
- Abigail Griffin: "We need blood for the surgery, lots of it, universal donors only. That means Skaikru."
- Niylah: "Not many Skaikru left. How much do we need?"
- Abigail Griffin: Wake them all, everyone but Octavia, - pint each.
- — in Sanctum