Every Mudkip card we price, most valuable first. Prices are what copies actually sold for, updated daily.
What a Mudkip card is worth
The most valuable Mudkip on this list is Mudkip Star from EX Team Rocket Returns at $2,956£2,225€2,603, and the 26 priced copies across 20 sets are worth $6.7k£5.0k€5.9k 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.
Mudkip is printed in Japanese as well: 14 cards across 12 sets, the most valuable of them Mudkip Star from Rocket Gang Strikes Back at $550£413.96€484.37. 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 Mudkip sold for $21,766£16,382€19,169. reverse holo printings are priced separately from the standard card, because they do not trade at the same money.
If you are trying to identify which Mudkip 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 Team Rocket Returns, Kids WB Promos, EX Emerald.