Tachikawa, Tokyo
| Tachikawa 立川市 | |
|---|---|
| Tama Intercity Monorail viewed from Green Springs | |
| Location of Tachikawa in Tokyo | |
| Coordinates: 35°41′39.2″N 139°25′10.8″E / 35.694222°N 139.419667°E | |
| Country | Japan | 
| Region | Kantō | 
| Prefecture | Tokyo | 
| First official recorded | 8th century (official) | 
| Town settled | December 1, 1924 | 
| City settled | December 1, 1940 | 
| Government | |
| • Mayor | Daishi Sakai (from September 2023) | 
| Area | |
|  • Total | 24.36 km2 (9.41 sq mi) | 
| Population  (March 1, 2021) | |
|  • Total | 184,383 | 
| • Density | 7,600/km2 (20,000/sq mi) | 
| Time zone | UTC+9 (Japan Standard Time) | 
| Symbols | |
| • Tree | Zelkova serrata | 
| • Flower | Magnolia kobus | 
| Phone number | 042-523-2111 | 
| Address | 1156-9 Izumi-cho, Tachikawa-shi, Tokyo 190-8666 | 
| Website | city.tachikawa.lg.jp | 
Tachikawa (立川市, Tachikawa-shi) is a city located in the western portion of the Tokyo Metropolis, Japan. As of 1 March 2021, the city had an estimated population of 184,383 in 93,428 households, and a population density of 7,600 persons per km2. The total area of the city is 24.36 square kilometres (9.41 sq mi).