Koto City's administrative center, with a 3.7-kilometer park on a filled-in river course behind the office blocks
The closest neighborhoods in the same city.
Office buildings are dense around Toyocho Station, and this area is the administrative center of Koto City. The City office is in Toyo 4-chome, a five-minute walk from the station.
Behind the office street are residential areas, and in this neighborhood two waterways were filled in to become parks. To the north, the Sendaibori River was mostly filled in heading east from the Oyokogawa River, becoming Sendaibori River Park, about 3.7 kilometers long.
In the northern part of this neighborhood, the Yokojikkengawa River also flows through; most of its channel was filled in to create the long, narrow Yokojikkengawa Water Park.
Looking at our street photos, sidewalks rank 2nd among 395 neighborhoods in Tokyo, the highest ranking for this neighborhood; cleanliness also ranks 35th.
In Yokojikkengawa Water Park, Koto City's traditional wasen boats are rowed by volunteers; rides are free, and visitors can also try rowing with a sculling oar. The boarding spot is next to Kaisabashi Bridge, already outside this neighborhood, about a 20-minute walk from Toyocho Station.
The station is served by only the Tozai Line, and public transit ranks 277th, the weakest category for this neighborhood. This station sees over 110,000 passengers entering and exiting each day, the most of any Tokyo Metro station without a transfer line.
This area sits at an elevation of about minus 1 meter, so the station's entrances and passageways are fitted with floodgates. In 2020, this neighborhood had a population density of about 262 people per hectare.
When the residential address system changed in 1967, Fukagawa Toyocho, Susaki Benten-cho, and several other towns were merged into Toyo 1-chome through 7-chome. The Tozai Line reached here in 1967, with Toyocho Station as the terminus; it wasn't extended to Nishi-Funabashi until 1969.
The reason the Yokojikkengawa River became a park was that factories pumping groundwater caused this area to subside into a zero-meter zone. Afterward, the water level was lowered and most of the channel was filled in, and the park opened in 1984.
Sendaibori River Park to the north came even earlier, opening in 1980 and reaching full completion in 1986.
The Yurakucho Line extension from Toyosu to Sumiyoshi broke ground in November 2024, targeting opening in the mid-2030s. A new station is planned for Toyocho, with the platform planned to be underground beneath Yotsume-dori, connected to the Tozai Line via a transfer passage.
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
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