- Kagawa has approximately 14,000 irrigation ponds, the most in Japan.
- With over 800 udon shops, Kagawa has the highest per capita density nationwide.
- Shodoshima is the birthplace of domestic olive cultivation in Japan (1907).
- Japan's largest sand drawing 'Kanei Tsuho' coin exists in Kotohiki Park, Kanonji City.
- The Seto Ohashi Bridge stretches 13.1km, making it Japan's longest combined road-rail bridge.
- The prefecture's area is smaller than Takayama City in Gifu Prefecture alone.
- The prefectural emblem depicts waves of the Seto Inland Sea and olive leaves.
- Naoshima features the 'House Project' where entire houses are transformed into artworks.
- Honetsukidori (bone-in chicken) is a local gourmet dish originating in Marugame, perfect with beer.
- A unique culture of eating white miso soup with sweet bean paste mochi on New Year's.
- The prefecture's expressway paving rate is 99.9%, among the highest in Japan.
- Takamatsu City has Japan's longest continuous arcade shopping street at 2.7km.
- The prefectural bird, the Lesser Cuckoo, is a migratory bird that arrives in summer.
- The only national treasure building in the prefecture is the main hall of Kamiya Shrine in Sakaide City.
- Prefectural TV broadcasts cover the same area as Okayama Prefecture, with 5 networks available.