Arakawa has sister-city relationships withDonaustadt inVienna,Austria, and withCorvallis,Oregon,U.S. Domestically, it has similar relationships with nine cities, towns and villages.
As of May 1, 2015, the ward has an estimatedpopulation of 208,763, and apopulation density of about 20,550 persons per km2. The total area is 10.16 km2.
Arakawa is in the northeastern part ofTokyo. The shape is long and narrow, stretching from west to east. TheSumida River forms the northern boundary.
The ward is surrounded by five other special wards. To the north liesAdachi; to the west,Kita; to the southwest,Bunkyo. South of Arakawa isTaito, and southeast isSumida.
The area was mainly agricultural in theEdo period. In 1651,Kozukappara, the Tokugawa's largest execution ground (now located next to Minami-Senju station), was built. Beginning in theMeiji era, the area became industrial as factories were built on the waterfront. In 1932, it became one of the 35 wards ofTokyo City.
Tokyo #10-B Prisoner of War Camp
On 1 July 1944, duringWorld War II, theImperial Japanese Army established the #20-B prisoner-of-war camp on the grounds near Hashiba Bridge, Minami-Senju, at the current day location with the address of 3-41 Minami-Senju, Arakawa. The camp was renamed to #10-B in August 1945.[2][3] The prisoners were liberated in September 1945.[2] At the time, there were 256 prisoners of war (87 British, 64 American, 55 Canadian and 50 Dutch) held at the camp. Two prisoners died during their imprisonment.[4]
MIAT Mongolian Airlines's Tokyo Branch Office is on the fifth floor in the Tachibana Building in Arakawa.[5]Iseki, atractor and engine equipment manufacturer has its Tokyo head office in the ward.[6]Nippori Fabric Town, is known for a concentration of shops specializing in fabric and textiles.