Koiwa, Edogawa City's biggest commercial district — three shopping streets fan out from the station, quiet just round the corner
The closest neighborhoods in the same city.
Exit Koiwa Station from the South Exit, and three shopping streets — Flower Road, Showa-dori, and Sun Road — radiate out from the station. The shop association here was formed back in 1927, and this area has long been Edogawa City's biggest commercial district. A statue of local-born Tochinishiki, the 44th yokozuna (sumo's highest rank), stands in front of the ticket gates, and it's a popular spot for meeting up.
Around Koiwa, turning off the busy main streets leads you into quiet residential areas.
Healthcare ranks 225th out of 395 neighborhoods in Tokyo, in the middle of the pack — the highest ranking of any category here. Daily shopping ranks 285th.
Under the station's elevated tracks is Shapo Koiwa, a shopping complex about 380 meters long.
This station is served only by Sobu Line Local trains, yet about 60,000 people board here each day, more than at Ichikawa Station to the east, which has Rapid trains stopping.
Going by our street photos, cleanliness ranks 320th out of 395 neighborhoods in Tokyo, toward the lower end. In 2020, this neighborhood had about 173 people per hectare.
The redevelopment building at the North Exit is still under construction. Ito Yokado closed in September 2026, and the City plans to demolish the building starting in November.
The name Koiwa is generally thought to come from "Kowa," which appears in a document from 721. Koiwa Station opened in 1899.
Flower Road at the South Exit was forcibly widened in 1945, from 8 meters to 15 meters, and arcades began going up in 1952. In 1972, when the Sobu Line was quadruple-tracked, shops also opened under the elevated tracks.
At the same South Exit, redevelopment buildings have been completed one after another since 2015. In March 2026, a 33-story building at the entrance to Flower Road was completed, finishing all the redevelopment planned for Minami-Koiwa 6-chome.
The redevelopment building at the North Exit will have about 731 housing units, shops, and a nursery, scheduled for completion in fiscal 2026. Ito Yokado plans to reopen at a new location in fiscal 2027.
After demolition, the North Exit will get a roughly 6,100-square-meter transit plaza and an elevated walkway, scheduled for completion around August 2030.
At the South Exit, Minami-Koiwa 7-chome still has about 1.5 hectares of redevelopment planned, with the city planning decision made in October 2023.
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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