Koishikawa 4-chome
小石川４丁目 — Bunkyo (文京区), Tokyo
Is Koishikawa 4-chome safe?
Koishikawa 4-chome in Bunkyo, Tokyo has a safety grade of A (Safe) with a crime rate of 2.2 per 1,000 residents based on 9 reported incidents in 2024 and a population of 4,091. Data source: Tokyo Metropolitan Police Department (警視庁).
Koishikawa 4-chome (小石川４丁目) is a residential neighborhood in Bunkyo, Tokyo with a residential population of 4,091 (2020 Census). The average household size is 2.0 persons. The nearest station is (茗荷谷), approximately a 7-minute walk away. Other nearby stations include (12 min) and (14 min).
Based on 2024 official data from the Tokyo Metropolitan Police Department, Koishikawa 4-chome recorded 9 criminal incidents, resulting in a crime rate of 2.2 per 1,000 residents and earning a safety grade of A (Safe). Compared to 2023, reported crime increased by 2 cases. Over the full 6-year period since 2018, crime has significantly declined (-25%).
The most frequently reported crime type in this area is bicycle theft (2 cases in 2024), accounting for 22% of all incidents. For broader context, Bunkyo ranks #1 out of 23 wards in Tokyo for overall safety, placing it among the safest wards in the city.
Crime Trend (2018-2024)
| Year | Total | Serious | Assault | Burglary | Theft | Other |
|---|---|---|---|---|---|---|
| 2018 | 12 | 1 | 0 | 0 | 8 | 3 |
| 2019 | 16+33% | 0 | 0 | 0 | 9 | 7 |
| 2020 | 12-25% | 0 | 1 | 0 | 8 | 3 |
| 2021 | 13+8% | 0 | 1 | 1 | 6 | 5 |
| 2022 | 9-31% | 0 | 1 | 0 | 6 | 2 |
| 2023 | 7-22% | 0 | 0 | 0 | 5 | 2 |
| 2024 | 9+29% | 0 | 0 | 0 | 5 | 4 |
Crime Breakdown (2024)
Theft
- Bicycle theft
- 2
- Shoplifting
- 1
- Pickpocketing
- 0
- Theft from vehicles
- 0
Violent & Property Crime
- Assault/Battery
- 0
- Injury
- 0
- Robbery
- 0
- Residential burglary
- 0
- Fraud
- 2
Demographics
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Walking time estimated at 80m/min (4.8 km/h). Distances are straight-line.