Okazaki City Office:
phone number, opening hours and address
The main phone number of the Okazaki City Office is 0564-23-6000. Here is what to know before you call, with the address, opening hours and official website.
Okazaki City Office main line
Official website www.city.okazaki.lg.jp
Without hyphens: 0564236000
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 Okazaki City
The central city of Nishimikawa, Okazaki became a city in 1916 and a core city in 2003, and merged with Nukata Town in 2006. It is the castle town of Okazaki Castle, where Tokugawa Ieyasu was born, and is also known for Hatcho miso. The city office is in Juocho, where it moved in 1940.
BASIC INFO
Basic information
- Main phone
- 0564-23-6000
- Address
- 〒444-8601 愛知県岡崎市十王町2丁目9番地Shown in Japanese so you can paste it into a map app or show it to a taxi driver.
- Opening hours
- Weekdays 9:00–16:00Closed on weekends, public holidays and Dec 29 – Jan 3
- Official website
- www.city.okazaki.lg.jp
- Local government code
- 232025Aichi Nishimikawa Area · City
ACCESS
Access and map
Address
〒444-8601 愛知県岡崎市十王町2丁目9番地
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.
- 0564-58-6511
〒444-8552 愛知県岡崎市羽根二丁目2番地1 岡崎合同庁舎
Covers Kota Town as well as Okazaki City
- 0564-23-2637
〒444-8607 愛知県岡崎市朝日町3-9
Covers Kota Town as well as Okazaki City
Personal pension consultations are accepted at any pension office in Japan.
- 0564-52-8609
〒444-0818 愛知県岡崎市羽根二丁目2-1 岡崎合同庁舎
Covers Kota Town as well as Okazaki City
- 0564-23-6807
〒444-8545 愛知県岡崎市若宮町2-1-1
FAQ
Frequently asked questions
What is the phone number of the Okazaki City Office?
The main phone number of the Okazaki City Office is 0564-23-6000. 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 Okazaki City Office? What time does it open and close?
Opening hours of the Okazaki City Office: Weekdays 9:00–16:00. 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 Okazaki 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.okazaki.lg.jp/) or the Mynaportal. Check the official website for any weekend service counters.
Which tax office and pension office cover the Okazaki City Office?
Okazaki City is covered by the Okazaki Tax Office (0564-58-6511). It handles national taxes such as income tax and consumption tax returns and tax certificates. Pension matters are handled by Okazaki Pension Office (0564-23-2637); 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 Aichi.
NEARBY
Other municipalities in Nishimikawa Area, Aichi
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).