Koto City's easternmost station sits over the river, with a big park running on to the Arakawa a few minutes' walk away
The closest neighborhoods in the same city.
Higashi-ojima Station's platform sits over the Kyu-Nakagawa river, making it the easternmost station in Koto City. The Koto City side is the Ojima exit, and the Edogawa City side is the Komatsugawa exit. A 6-minute walk from the Komatsugawa exit brings you to where the Kyu-Nakagawa flows into the Arakawa. Next to it, Ojima-Komatsugawa Park covers 24.9 hectares and connects all the way to the Arakawa riverbed, often used as a jogging route.
This neighborhood spans two wards, covering Ojima 8 and 9-chome, Higashisuna 1 to 3-chome in Koto City, and Komatsugawa 1 and 2-chome in Edogawa City, with a population of about 37,000 in 2020.
From our street photos, cleanliness ranks 6th out of 395 neighborhoods in Tokyo, in the top tier—the highest-ranking category for this neighborhood. Greenery ranks 17th, also in the top tier.
The area around Ojima-Komatsugawa Park is a zero-meter-elevation zone, so the park's ground was deliberately raised, and it's designated to provide temporary shelter for about 200,000 people during disasters.
The Toei Shinjuku Line's Express service does not stop at Higashi-ojima. There are Toei bus stops outside both exits.
Daily shopping ranks 362nd out of 395 neighborhoods in Tokyo, in the lower tier. Buildings rank third from the bottom, the weakest category for this neighborhood.
Using the Geospatial Information Authority's flood inundation hazard maps, we sampled points about every 40 meters within the neighborhood: excluding river surfaces, riverbeds, and levees, about 90% of the points fall within the projected flood zone, with nearly 70% at 3 meters or more. Ojima 8-chome and Higashisuna 1 to 3-chome fall entirely within the flood zone; the points outside it are mostly in Ojima-Komatsugawa Park, where the ground was raised.
This neighborhood spans two wards, and Koto City (Ojima) and Edogawa City (Komatsugawa) each have their own flood hazard maps. Edogawa City anticipates that in a major flood, inundation could last 1 to 2 weeks or more, so its policy is that residents should in principle all evacuate outside the city in advance.
The Arakawa floodway, construction of which began in 1913, split the villages around Komatsugawa into two sides. Because the floodway and the Kyu-Nakagawa had different water levels, the Komatsugawa Lock, completed in March 1930, was built to let boats pass between the two rivers.
The lock was decommissioned in 1976, and the gate from the Kyu-Nakagawa side is now preserved at Kaze no Hiroba in Ojima-Komatsugawa Park. Boat traffic shifted to the Arakawa Lock Gate, newly built in 2005.
An earlier checkpoint on the same river was the Nakagawa Funabansho, which inspected boats during the Edo period. The Nakagawa Funabansho Museum in Ojima 9-chome recreates it with models.
Compared with the 395 Tokyo neighborhoods in this guide (scores 0–10)
Hospitals with inpatient beds (2020 data), public elementary and junior high schools whose catchment covers this area, high schools and universities within 1 km, stations, parks of 1 ha or more, and large shopping malls and department stores. Many Tokyo junior high students attend private schools, so junior high catchments are only a guide.
Maps show the shops and the sights. What a street is like, you only know by walking it. TidyMap uses AI street imagery analysis and public facility data to turn each area's street environment and everyday convenience into something you can compare. Search an address and look at the street outside first.
How to read it: yellow = poor, blue = good; grey = not enough data
TidyMap rates the street environment and everyday convenience. It does not assess the home itself, safety, noise or actual living experience. Street environment scores use AI assessments of imagery; convenience scores use public facility data.
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