Koganei City Office:
phone number, opening hours and address
The main phone number of the Koganei City Office is 042-383-1111. Here is what to know before you call, with the address, opening hours and official website.
Koganei City Office main line
Official website www.city.koganei.lg.jp
Without hyphens: 0423831111
The main number connects you to an operator, who will put you through to the right section. Calls are usually answered in Japanese.
Checked against the official website · October 7, 2026
ABOUT
About Koganei City
Koganei City gained city status in 1958. This residential city is known for Koganei Park and the Edo-Tokyo Open Air Architectural Museum, as well as the springs along the Kokubunji Cliff Line, locally called hake. The city office is in Honcho, near Musashi-Koganei Station.
BASIC INFO
Basic information
- Main phone
- 042-383-1111
- Address
- 〒184-8504 東京都小金井市本町6丁目6番3号Shown in Japanese so you can paste it into a map app or show it to a taxi driver.
- Opening hours
- Weekdays 8:30–17:00Closed on weekends, public holidays and Dec 29 – Jan 3
- Official website
- www.city.koganei.lg.jp
- Local government code
- 132101Tokyo Tama Area (Cities) · City
ACCESS
Access and map
Address
〒184-8504 東京都小金井市本町6丁目6番3号
RELATED OFFICES
Phone numbers of related government offices
Public offices in charge of this municipality (national and prefectural branches). National taxes — income tax and consumption tax returns, tax certificates — are handled by the tax office, not the municipal office. Addresses are shown in Japanese.
- 0422-53-1311
〒180-8522 東京都武蔵野市吉祥寺本町3丁目27番1号
Covers Musashino City, Mitaka City as well as Koganei City
- 042-523-0352
〒190-8580 東京都立川市錦町2-12-10
Covers Tachikawa City, Akishima City, Hino City, Kokubunji City, Kunitachi City, Higashiyamato City, Musashimurayama City as well as Koganei City
Personal pension consultations are accepted at any pension office in Japan.
- 042-525-8609
〒190-8609 東京都立川市緑町4-2 立川地方合同庁舎1～3階
Covers Tachikawa City, Akishima City, Kodaira City, Higashimurayama City, Kokubunji City, Kunitachi City, Higashiyamato City, Musashimurayama City as well as Koganei City
- 042-362-2334
〒183-0022 東京都府中市宮西町1-26-1（東京都府中合同庁舎内）
Covers Musashino City, Mitaka City, Fuchu City, Chofu City, Komae City as well as Koganei City
FAQ
Frequently asked questions
What is the phone number of the Koganei City Office?
The main phone number of the Koganei City Office is 042-383-1111. It connects you to an operator, who will transfer you to the right section once you explain what you need.
What are the opening hours of the Koganei City Office? What time does it open and close?
Opening hours of the Koganei City Office: Weekdays 8:30–17:00. It is closed on Saturdays, Sundays, public holidays and over the New Year break (Dec 29 – Jan 3). Hours can differ by counter and service, so please check the official website for details.
Can I call the Koganei City Office on weekends or at night?
The main line is generally not answered outside opening hours. For non-urgent procedures and certificates you may be able to use online applications on the official website (https://www.city.koganei.lg.jp/) or the Mynaportal. Check the official website for any weekend service counters.
Which tax office and pension office cover the Koganei City Office?
Koganei City is covered by the Musashino Tax Office (0422-53-1311). It handles national taxes such as income tax and consumption tax returns and tax certificates. Pension matters are handled by Tachikawa Pension Office (042-523-0352); personal consultations are accepted at any pension office in Japan.
GOVERNMENT OFFICES
Phone numbers of tax offices, pension offices, Hello Work and public health centers
Main phone numbers, addresses and jurisdictions of the offices in Tokyo.
NEARBY
Other municipalities in Tama Area (Cities), Tokyo
- Hachioji City
- Tachikawa City
- Musashino City
- Mitaka City
- Ome City
- Fuchu City
- Akishima City
- Chofu City
- Machida City
- Kodaira City
- Hino City
- Higashimurayama City
- Kokubunji City
- Kunitachi City
- Fussa City
- Komae City
- Higashiyamato City
- Kiyose City
- Higashikurume City
- Musashimurayama City
- Tama City
- Inagi City
- Hamura City
- Akiruno City
- Nishitokyo City
For staff of municipalities and public offices
We accept requests to correct or update the phone numbers, office hours, addresses and other details listed here. We check each request against the official website before updating.
The phone numbers, addresses and opening hours on this page are based on information published on each municipality's official website (last checked: October 7, 2026). Please check the official website for the latest information. This page compiles public information for the convenience of residents and does not indicate any business or partnership relationship between the listed municipalities and AIRI (LIVERUSH Co., Ltd.). If you find an error, please let us know via our contact form.
Tax office names, addresses, phone numbers and jurisdictions are based on the National Tax Agency's 税務署の所在地などを知りたい方 (checked October 19, 2026). Pension office names, addresses, phone numbers and jurisdictions are based on the Japan Pension Service's 年金事務所管轄区域 (checked October 19, 2026). Hello Work (public employment office) names, addresses, phone numbers and jurisdictions are based on the Ministry of Health, Labour and Welfare's 全国ハローワーク所在案内 (checked October 19, 2026). Public health center names, addresses, phone numbers and jurisdictions are based on the Ministry of Health, Labour and Welfare's 保健所管轄区域案内 (checked October 19, 2026).