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Iidabashi -01.jpg
Coordinates: 35°42′09″N 139°44′41″E / 35.70250°N 139.74472°E / 35.70250; 139.74472Coordinates: 35°42′09″N 139°44′41″E / 35.70250°N 139.74472°E / 35.70250; 139.74472
Country Japan
City Tokyo
Ward Chiyoda
Area Kōjimachi Area
Population (February 1, 2009)
 • Total 2,707
Time zone JST (UTC+9)
Area code(s) 03

Iidabashi (飯田橋, Iidabashi, "Rice Field Bridge") is a district of Chiyoda, Tokyo, Japan. It was in the former ward of Kōjimachi, which existed in Tokyo until 1947, its postal code is 102-0072.[1]


Iidabashi is named after a nearby bridge called Iida Bridge (飯田橋, Iidabashi), itself named after an Edo-period farmer, Iida Kihee (飯田喜兵衛, Iida Kihee).



Several companies have their headquarters in Iidabashi, among them Japan Freight Railway Company,[2] KDDI[3] Nikken Sekkei,[4] and Shohakusha.[5]


  1. ^ Postal Code
  2. ^ "Corporate Overview." Japan Freight Railway Company. Retrieved on March 27, 2010.
  3. ^ "Corporate Data Archived 2010-01-19 at the Wayback Machine.." KDDI. Retrieved on February 21, 2010.
  4. ^ "Corporate Data." Nikken Sekkei. Retrieved on March 04, 2014.
  5. ^ "会社案内." Shohakusha. Retrieved on December 23, 2014. "〒102-0072 東京都千代田区飯田橋1-6-1"