Yamaguchi Prefecture19 municipalities

Of the 19 municipalities in Yamaguchi Prefecture, 16 cover outpatient care through age 18, 18 have no income limit, and 18 charge no outpatient co-payment. Since last year, 7 have changed their conditions (as of April 1, 2025, Children and Families Agency survey).

Condition	Municipalities	Share
Outpatient care covered through age 18	16 / 19	84.2%
No income limit	18 / 19	94.7%
No co-payment for outpatient care	18 / 19	94.7%
Changed since last year	7 / 19	36.8%

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All 19 municipalities in Yamaguchi Prefecture

Subsidy conditions as of April 1, 2025. Population from the resident register, 2024. Last checked September 24, 2026.

Municipality	Outpatient until	Inpatient until	Income limit	Co-payment (outpatient / inpatient)	Population
Shimonoseki City	Age 15	Age 18	No	No	243,422
Ube Citychanged	Age 18	Age 18	No	No	156,438
Yamaguchi Citychanged	Age 18	Age 18	No	No	185,982
Hagi City	Age 18	Age 18	Yes	Yes	41,637
Hofu Citychanged	Age 18	Age 18	No	No	113,144
Kudamatsu Citychanged	Age 18	Age 18	No	No	56,637
Iwakuni City	Age 15	Age 15	No	No	124,568
Hikari Citychanged	Age 18	Age 18	No	No	48,015
Nagato City	Age 18	Age 18	No	No	30,207
Yanai City	Age 18	Age 18	No	No	29,233
Mine Citychanged	Age 18	Age 18	No	No	20,921
Shunan City	Age 18	Age 18	No	No	134,733
Sanyoonoda City	Age 15	Age 15	No	No	58,871
Suooshima Townchanged	Age 18	Age 18	No	No	13,537
Waki Town	Age 18	Age 18	No	No	5,695
Kaminoseki Town	Age 18	Age 18	No	No	2,190
Tabuse Town	Age 18	Age 18	No	No	14,033
Hirao Town	Age 18	Age 18	No	No	10,748
Abu Town	Age 18	Age 18	No	No	2,945

Source: Children and Families Agency, Survey on Municipal Child Medical Expense Subsidies (municipal form, attachment 3) / e-Stat, Statistical Observations of Municipalities 2026 (Statistics Bureau of Japan)