City, town and village offices in Yamaguchi:
phone numbers
Main phone numbers and addresses of all 19 municipalities in Yamaguchi. Select a municipality for its opening hours, official website and tips before you call. Every number is checked against the official website (last checked October 7, 2026).
Yamaguchi Prefectural Government (main line)
Official website www.pref.yamaguchi.lg.jp
Without hyphens: 0839223111
〒753-8501 山口県山口市滝町1番1号
Checked against the official website · October 7, 2026
Iwakuni Area2 municipalities
Yanai Area5 municipalities
Shunan Area3 municipalities
Yamaguchi Area2 municipalities
Ube Area3 municipalities
Shimonoseki City1 municipality
Hagi Area3 municipalities
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 Yamaguchi.
BEFORE YOU CALL
Before you call
Main number → operator → section
The main number connects you to an operator. Say what you need — residence certificate, national health insurance, nursery school — and you will be put through to the right section.
Avoid the busiest times
Most offices are open weekdays from about 8:30 to 17:00. Lunchtime, Monday mornings, the days after holidays and the March–April moving season are busy.
Closed days: go online
On weekends, public holidays and over the New Year break (December 29 – January 3) the main line is generally not answered. Many certificates and procedures are available online via the official website or the Mynaportal.
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.