How many people live on the Snowpiercer train?

Wow, can you believe it? Something like 3,000 people crammed onto that train, Snowpiercer. It's just mind-boggling, isn't it? Three thousand souls, all that's left of humanity, rattling around inside a metal snake chugging through an icy wasteland. I mean, what must that be like? I remember once being stuck on a delayed subway for just an hour and I was about to lose it! Can you imagine, your whole world, your entire life confined to that train? It's like, generation after generation, born and raised in those metal carriages. They're the last survivors, the last embers of humanity flickering in that frozen apocalypse… it gives me chills just thinking about it. Three thousand… it’s both a lot and so, so little, you know?