Ichihara City Office:
phone number, opening hours and address
The main phone number of the Ichihara City Office is 0436-22-1111. Here is what to know before you call, with the address, opening hours and official website.
Ichihara City Office main line
Official website www.city.ichihara.chiba.jp
Without hyphens: 0436221111
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 Ichihara City
Ichihara City was established in 1963 through the merger of five towns, including Goi, Ichihara and Anesaki. Its coastal area is one of Japan’s leading industrial zones, the city stretches from Tokyo Bay to the Boso Hills, and it is also known for the Yoro River and the “Chibanian.” The city office is in Kokubunjidai-chuo.
BASIC INFO
Basic information
- Main phone
- 0436-22-1111
- Address
- 〒290-8501 千葉県市原市国分寺台中央1丁目1番地1Shown in Japanese so you can paste it into a map app or show it to a taxi driver.
- Opening hours
- Weekdays 9:00–16:30Closed on weekends, public holidays and Dec 29 – Jan 3
- Official website
- www.city.ichihara.chiba.jp
- Local government code
- 122190Chiba Ichihara City · City
ACCESS
Access and map
Address
〒290-8501 千葉県市原市国分寺台中央1丁目1番地1
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.
- 043-261-5571
〒260-8688 千葉県千葉市中央区蘇我5丁目9番1号
Covers Chiba City, Chuo Ward, Midori Ward as well as Ichihara City
- 0438-23-7616
〒292-8530 千葉県木更津市新田3-4-31
Covers Tateyama City, Kamogawa City, Minamiboso City, Kyonan Town, Kisarazu City, Kimitsu City, Futtsu City, Sodegaura City as well as Ichihara City
Personal pension consultations are accepted at any pension office in Japan.
- 043-300-8609
〒260-0842 千葉県千葉市中央区南町2-16-3 海気館蘇我駅前ビル3階・4階
Covers Chiba City, Togane City, Oamishirasato City, Kujukuri Town, Chuo Ward, Midori Ward as well as Ichihara City
- 0436-21-6391
〒290-0082 千葉県市原市五井中央南1-2-11
FAQ
Frequently asked questions
What is the phone number of the Ichihara City Office?
The main phone number of the Ichihara City Office is 0436-22-1111. 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 Ichihara City Office? What time does it open and close?
Opening hours of the Ichihara City Office: Weekdays 9:00–16:30. 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 Ichihara 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.ichihara.chiba.jp/) or the Mynaportal. Check the official website for any weekend service counters.
Which tax office and pension office cover the Ichihara City Office?
Ichihara City is covered by the Chiba-Minami Tax Office (043-261-5571). It handles national taxes such as income tax and consumption tax returns and tax certificates. Pension matters are handled by Kisarazu Pension Office (0438-23-7616); 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 Chiba.
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).