Koka City Office:
phone number, opening hours and address
The main phone number of the Koka City Office is 0748-65-0650. Here is what to know before you call, with the address, opening hours and official website.
Koka City Office main line
Official website www.city.koka.lg.jp
Without hyphens: 0748650650
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 Koka City
Koka was created in 2004 by the merger of 5 towns of Koka District, including Minakuchi. Known as the home of the Koka ninja and a production center of Shigaraki ware, it also grows Tsuchiyama and Asamiya teas. The city office is in Minakuchi, Minakuchi-cho, where a rebuilt office began operating in 2017.
BASIC INFO
Basic information
- Main phone
- 0748-65-0650
- Address
- 〒528-8502 滋賀県甲賀市水口町水口6053番地Shown in Japanese so you can paste it into a map app or show it to a taxi driver.
- Opening hours
- Weekdays 9:00–16:45Closed on weekends, public holidays and Dec 29 – Jan 3
- Official website
- www.city.koka.lg.jp
- Local government code
- 252093Shiga Koka Area · City
ACCESS
Access and map
Address
〒528-8502 滋賀県甲賀市水口町水口6053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.
- 0748-62-0314
〒528-8555 滋賀県甲賀市水口町水口5587-3
Covers Konan City as well as Koka City
- 077-567-2220
〒525-0025 滋賀県草津市西渋川1-16-35
Covers Omihachiman City, Kusatsu City, Moriyama City, Ritto City, Yasu City, Konan City, Hino Town, Ryuo Town as well as Koka City
Personal pension consultations are accepted at any pension office in Japan.
- 0748-62-0651
〒528-0031 滋賀県甲賀市水口町本町3丁目1-16
Covers Konan City as well as Koka City
- 0748-63-6111
〒528-8511 滋賀県甲賀市水口町水口6200
Covers Konan City as well as Koka City
FAQ
Frequently asked questions
What is the phone number of the Koka City Office?
The main phone number of the Koka City Office is 0748-65-0650. 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 Koka City Office? What time does it open and close?
Opening hours of the Koka City Office: Weekdays 9:00–16:45. 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 Koka 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.koka.lg.jp/) or the Mynaportal. Check the official website for any weekend service counters.
Which tax office and pension office cover the Koka City Office?
Koka City is covered by the Minakuchi Tax Office (0748-62-0314). It handles national taxes such as income tax and consumption tax returns and tax certificates. Pension matters are handled by Kusatsu Pension Office (077-567-2220); 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 Shiga.
NEARBY
Other municipalities in Koka Area, Shiga
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).