Every Groudon card we price, most valuable first. Prices are what copies actually sold for, updated daily.
The same Pokemon is also printed as Primal Groudon and Team Magma's Groudon, priced separately because the game treats them as different cards.
What a Groudon card is worth
The most valuable Groudon on this list is Groudon Star from EX Delta Species at $1,010£760.17€889.48, and the 37 priced copies across 22 sets are worth $4.2k£3.2k€3.7k together. Most of that sits in a handful of printings: the older the set and the scarcer the print run, the wider the gap to the rest.
Groudon is printed in Japanese as well: 28 cards across 21 sets, the most valuable of them Groudon Star from Holon Research Tower at $458£344.71€403.35. Switch the list above to Japanese to read those, or to Both to rank the two catalogues against each other.
The highest PSA 10 on record for Groudon sold for $14,979£11,274€13,191. reverse holo printings are priced separately from the standard card, because they do not trade at the same money. Rarities here include Illustration Rare, Secret Rare.
If you are trying to identify which Groudon you have, the set name is printed on the card and the collector number sits in the bottom corner. Open the card here and the page carries every printing of it, the graded prices, and whether grading the copy is worth the fee. Sets to start with: EX Delta Species, Call of Legends, Dark Explorers.