Sasazuka, where the Edo-era Tamagawa Josui still runs open near the station, with Shinjuku right next door
The closest neighborhoods in the same city.
Before and after Sasazuka Station, a stretch of the Tamagawa Josui still runs in the open air; this waterway, dug in 1653 to supply water to Edo, is rarely seen by the time it reaches downstream. In the morning, the commuters walking from Sasazuka 2-chome and 3-chome toward the station pack the Jugo-dori shopping street tight. This station-front shopping street heads north from the Koshu Kaido intersection, bending into a hook shape partway.
This is a residential street where apartment buildings, rental apartments, and detached houses stand side by side. In 2020, nearly 70% of households in this neighborhood were single-person households, about a third were in their twenties or thirties, and over 60% rented from private landlords.
There are other shopping streets and supermarkets near the station too, and the space under the elevated tracks is also a shopping street. The 21-story building Merkmal Keio Sasazuka at the south exit has a shopping mall with about 40 stores on 1F to 3F, and rental housing from 10F up. For everyday shopping, this neighborhood ranks 98th out of 395 neighborhoods in Tokyo.
Sasazuka is the next stop out of Shinjuku on the Keio Line (main line). Both the Keio Line and the Keio New Line stop at this station, and Keio New Line trains run through directly to the Toei Shinjuku Line.
Since 2022, even the Special Express stops here, and public transit ranks 78th. Looking at our street photos, cleanliness ranks 114th, the highest-ranked item in this neighborhood.
In 2020, about 260 people lived per hectare in this neighborhood. There are many narrow streets, and the area densely packed with wooden houses is wide, so fire damage can easily spread and evacuation routes are hard to secure.
In recent years, apartment buildings have been built one after another. Looking at our street photos, sidewalks rank 140th, the lowest-ranked item in this neighborhood.
The place name Sasazuka comes from an ichirizuka (a mound marking distance along the road) one ri from Naito-Shinjuku on the Koshu Kaido. The mound was covered with thin bamboo grass, so it was named Sasazuka, from sasa meaning bamboo grass and tsuka meaning mound.
In 1913, Keio Electric Tramway opened the section between Sasazuka and Chofu, with Sasazuka Station as the terminus at the time. Between 1977 and 1978, the station was rebuilt as an elevated station, and four tracks now run in parallel between Shinjuku and Sasazuka.
This area originally belonged to Hatagaya Village, and after being reorganized into Sasazuka 1-chome through 3-chome in 1960, it increasingly came to feel like an independent neighborhood. Even so, the grand festival of Hatagaya Hikawa Shrine is still held in Sasazuka today.
After the station, it's the turn of the section heading west: the roughly 7.2-kilometer stretch of the Keio Line from Sasazuka Station to Sengawa Station is to be elevated. Once complete, 25 railroad crossings will be removed, with the target of completion in fiscal year 2030.
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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