Blorch
is the home of the Slaughtering Rat People. It was assigned to Invader Skooge who actually managed to conquer the Rats - allowing the Irken Empire to convert Blortch into a parking structure planet
Boodie Nen
is the home of the large nostriled people. It was assigned to Invader Slacks, who failed to conquer it before Probing Day.
Callnowia
is a large metallic planet which is used by the Irken Empire (and others?) to process online and telephone orders. Zim's germ finding goggles were dispatched via meteor from Callnowia to his front door.
Charcunga
is one of the two planets that align every 1,000 years signaling the approach of Mortos der Soulstealer.
Conventia
is seen early in The Nightmare Begins. It is a world equipped with large halls and a nice space-dock teleporter set which allows the Irkens to hold massive meetings. Conventia was the sight of The Great Assigning.
The Conveyor Belt Planet
is a galactic shipping center controlled by the Irkens. It was populated with a strange looking race(how many aliens do you know that have screws grafted into their heads?) who have been enslaved and are forced to ship Irken packages around the universe.
Devastis
is really only seen in Tak: The Horrible New Girl during Tak's flashback. Devastis is a testing site for Irken Invaders.
Planet Dirt
was the place Tak was banished to after losing her chance to be an invader. It is a huge desert and is used as a Irken Junkyard
Earth
is the home of the humans and it is the inadvertantly assigned target of Zim's invasion during Operation Impending Doom II. Most of the action in the Invader Zim cartoon takes place on Earth.
Foodcourtia
is the food court planet. After Operation Impending Doom I Zim is banished to be a minion of Sizz-Lorr on Foodcourtia but he later escapes. The area has a space time flux and time flows differently
Hobo13
is the location of an elite military training facility visited by Zim in the episode titled Hobo13 it is generally a huge desertand home to lava pits, acid pits, hostile monsters, and strange cyborg aliens who use hobo and then a group of numbers
Irk
This is the home world of the Irken Empire. It is slightly larger than earth's size it is stated to be Maya Blue and has rings and is ball shaped. the enviorment is a heavily industrial futurestic-looking city.
Planet Judgementia
is home to the Spike of Judgement a place that every Irken must eventually go where their lives are evaluated by the Irken control brains to determine if that Irken will be allowed to exist, imprisioned, or if they will be zapped to death. This planet was to be the scene for most of the episode The Trial which was never made. Thankfually this place is only for the most evil and violente Irken Criminals.
Mars
is a neighboring planet of Earth. It figures prominently in Battle of the Planets when Dib and Zim use Mars and Mercury as weapons against each other.
The Mechanical Storage Planet
his planet is used by the Irkens to store equipment and hardware. It was where they stored their Megadoomer and the malfunctioning SIR units in the Megadoomer episode.
Plookesia
is what I assume the home planet of the Plookesians is called.
Taoola
is one of the two planets that align every 1,000 years signaling the approach of Mortos der Soulstealer.
Vort
is home to some of the greatest engineers and scientists in the universe…unfortunately for them Vort has also been conquered by the Irken Empire who now uses those engineers and scientists to design ships and weapons. The Massive was designed by Vortians