Ichinoe Station
S18 · Shinjuku Line · Edogawa
Ichinoe Station (一之江)
Ichinoe opened on 14 September 1986, filling in a gap on the eastern half of the Shinjuku Line as Edogawa was being built up, and it has a single island platform underground at the crossing of Imai-kaido and the Kannana ring road. S18 is a commuter station in the plainest sense – apartment blocks immediately around it, houses beyond, the Shin-Naka river a short way off – and the numbers reflect it: 43,043 entries and exits on an average day in 2024, well ahead of several stations in busier surroundings.
What sets it apart is the road interchange on top. Ten bus stands at the station forecourt feed routes across eastern Tokyo toward Kasai, Koiwa, Kameido and Shin-koiwa, and coaches to both airports and to the Disney resort call at the same place, which makes this an unusually useful station for travellers staying out this way; airport access covers the rail alternatives. Trains from the platform run through onto the Keio network at the far end of the line.
Finding Ichinoe on the signs
Every line gives the station its own letter-and-number code. You never have to read the Japanese name to find the right platform.
Station numbers at Ichinoe
Tokyo signposts every platform, exit and train door with a letter and a two-digit number. Matching the number is faster than reading the name — and it is what you will see on the map, in announcements and on the platform edge.
First and last trains at Ichinoe
| Line and direction | Weekdays first – last | Saturdays, Sundays & holidays first – last |
|---|---|---|
| SShinjukuS18 towards Motoyawata | 05:09 – 00:20 to Mizue | 05:09 – 00:20 to Mizue |
| SShinjukuS18 towards Shinjuku | 05:08 – 00:17 to Ojima | 05:08 – 00:17 to Ojima |
Departure times come from the operators’ own GTFS timetables (ODPT GTFS Toei-Train-GTFS (version 20261009, valid 2026-03-14..2027-03-12) + TokyoMetro-Train-GTFS (version 20261008, valid 2026-09-19..2027-03-12)). Japan publishes two subway timetables: 平日 weekdays and 土休日 Saturdays, Sundays and national holidays. There is no separate Sunday timetable, and the December 30 – January 3 period runs the holiday timetable.
How often do trains run?
| Line | Weekdays, busiest hour | Sat / Sun / holidays, busiest hour |
|---|---|---|
| SShinjuku | 15 trains/hour (about one every 4 min) | 11 trains/hour |
Departures in one direction during the hour with the most trains at this station, counted in the operators’ timetable.
Transfers and connections
Only the Shinjuku Line stops here, and no other railway serves this station, so there is nothing to transfer to inside the station.
Accessibility
| Line | Step-free by elevator | Accessible toilet | Escalator | Exits |
|---|---|---|---|---|
| SShinjuku | Yes | Yes | Yes | 4 |
- Shinjuku Line: Toei: step-free “1-route” secured; 3 elevator(s) on this line. Elevator exit(s): A0, A2. Operator page (checked Oct 20, 2026).
Taken from the operators’ own accessibility pages and nothing else. Toei: every station has elevators and a street-gate-platform “1-route” is secured.
What is near Ichinoe Station?
The area around the exits is housing with a scatter of schools: Kasai Technical High School about 370 m away, Kasai Commercial High School, Ichinoe Elementary School and Ichinoe Junior High School among the others the station serves. Ichinoe Friend Park is roughly 240 m from the gates and Shirahige Shrine around 290 m, with a well-known Ramen Jiro branch about 220 m off. The Shin-Naka river and the Mizue-Ohashi bridge lie beyond the eastern blocks.
| Place | Distance (straight line) | On foot, estimated |
|---|---|---|
| 一之江フレンド公園 | 240 m | about 4 min |
| 白鬚神社 | 290 m | about 5 min |
| Ramen Jiro ラーメン二郎 | 220 m | about 4 min |
| 東京都立葛西工科高等学校 | 370 m | about 6 min |
Places from OpenStreetMap within 400 m of the station. The walking time is an estimate (straight line plus 30 %, 80 m a minute), not a measured route. © OpenStreetMap contributors, ODbL.