Ojima, full of large housing estates, with a 2,892-unit danchi right by the express stop
The closest neighborhoods in the same city.
Ojima Station sits directly beneath the intersection of Shin-Ohashi-dori and Maruhachi-dori, and right around the station are Koto Hospital and the UR Ojima 6-chome housing complex. This housing complex has 2,892 units. Ojima has always had a lot of large-scale housing complexes, with Toei public housing, UR rental housing, and condominiums for sale all present.
The Ojima 6-chome housing complex is the one with the most units in Ojima, and 6-chome is also the chome with the largest population in Ojima. This neighborhood covers Ojima 4-chome through 7-chome; in 2020 about 32,000 people lived there, or about 338 people per hectare.
From our street photos, sidewalks rank 29th, near the top, the best-ranked category for this neighborhood. Healthcare ranks 29th, also near the top, with Koto Hospital right next to the station.
Every Express train on the Shinjuku Line stops at Ojima, connecting here with the Local trains that stop at every station.
The street photos used for scoring this neighborhood number only 33, right at the minimum threshold. The most populous 6-chome has only 4 of these, so the score mainly reflects 4-chome, between the two stations.
Greenery ranks 141st, in the middle, the lowest-ranked category for this neighborhood.
Using the Geospatial Information Authority of Japan's flood inundation hazard map (maximum assumed scale), TidyMap sampled points roughly every 40 meters within the neighborhood and calculated the figures itself; every point falls within the assumed flood zone, with about 80% in the 3-to-5-meter range and about 10% at 5 meters or more. For your own location, check Koto City's flood hazard map, which marks flood depth and duration.
For a large-scale flood, the policy of the five Koto-area wards is that, in principle, all residents evacuate outside the five wards in advance (wide-area evacuation).
The name Ojima is said to come from the Shoho era (1644–1647), when this area, amid the development of low-lying coastal wetlands, was considered a relatively large island.
In 1978 the Toei Shinjuku Line opened, with Ojima Station opening at the same time as Nishi-ojima and Higashi-ojima stations. From the 1990s on, more and more buildings were built, and the population concentrated accordingly; the population of Ojima as a whole grew from 56,000 in 1995 to 63,000 in 2020.
In October 2025, Koto City established the Ojima 4-chome Area Neighborhood Development Policy, prompted by the decision to rebuild the UR Ojima 4-chome housing complex within this neighborhood.
Before establishing it, Koto City solicited public comments in July 2025 and held a resident briefing session. The city's policy page does not state the number of units or the timeline for the rebuilding.
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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