Niigata Prefecture30 municipalities

Of the 30 municipalities in Niigata Prefecture, 30 cover outpatient care through age 18, 30 have no income limit, and 11 charge no outpatient co-payment. Since last year, 4 have changed their conditions (as of April 1, 2025, Children and Families Agency survey).

Since last year, Tokamachi City, Murakami City, Myoko City and Seiro Town changed their conditions.

Child medical expense subsidy, national totals (as of April 1, 2025, Children and Families Agency survey)
Condition	Municipalities	Municipalities in survey	Share
Outpatient care covered through age 18	30	30	100.0%
No income limit	30	30	100.0%
No co-payment for outpatient care	11	30	36.7%
Changed since last year	4	30	13.3%

Filter by conditions

11 municipalities in Niigata Prefecture where child medical care is free through age 18 (no income limit, no co-payment)

Agano City, Itoigawa City, Ojiya City, Uonuma City, Myoko City, Seiro Town, Aga Town, Yuzawa Town, Yahiko Village, Izumozaki Town, Awashimaura Village

0 municipalities where outpatient coverage ends before age 18

None.

0 municipalities with an income limit

None.

19 municipalities with an outpatient co-payment

Niigata City, Nagaoka City, Joetsu City, Shibata City, Sanjo City, Kashiwazaki City, Tsubame City, Murakami City, Minamiuonuma City, Sado City, Tokamachi City, Gosen City, Mitsuke City, Tainai City, Kamo City, Tagami Town, Tsunan Town, Sekikawa Village, Kariwa Village

4 municipalities that changed their conditions since April 2024

Murakami City, Tokamachi City, Myoko City, Seiro Town

National survey values as of April 1, 2025. Later changes confirmed on official websites are noted on each municipality's page.

All 30 municipalities in Niigata Prefecture

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

Child medical expense subsidy in the 30 municipalities of Niigata Prefecture (as of April 1, 2025, Children and Families Agency survey)
Municipality	Outpatient until	Inpatient until	Income limit (out / in)	Co-payment (outpatient)	Co-payment (inpatient)	Population	Changed
Niigata City	Age 18	Age 18	No	Yes	Yes	761,503	No
Nagaoka City	Age 18	Age 18	No	Yes	Yes	255,261	No
Joetsu City	Age 18	Age 18	No	Yes	Yes	180,440	No
Shibata City	Age 18	Age 18	No	Yes	No	91,677	No
Sanjo City	Age 18	Age 18	No	Yes	Yes	91,178	No
Kashiwazaki City	Age 18	Age 18	No	Yes	Yes	76,217	No
Tsubame City	Age 18	Age 18	No	Yes	No	75,935	No
Murakami City	Age 18	Age 18	No	Yes	No	53,492	Yes
Minamiuonuma City	Age 18	Age 18	No	Yes	Yes	52,376	No
Sado City	Age 18	Age 18	No	Yes	No	48,103	No
Tokamachi City	Age 18	Age 18	No	Yes	Yes	47,124	Yes
Gosen City	Age 18	Age 18	No	Yes	No	45,690	No
Agano City	Age 18	Age 18	No	No	No	39,165	No
Mitsuke City	Age 18	Age 18	No	Yes	Yes	38,061	No
Itoigawa City	Age 18	Age 18	No	No	No	38,041	No
Ojiya City	Age 18	Age 18	No	No	No	32,602	No
Uonuma City	Age 18	Age 18	No	No	No	32,522	No
Myoko City	Age 18	Age 18	No	No	No	29,514	Yes
Tainai City	Age 18	Age 18	No	Yes	Yes	26,791	No
Kamo City	Age 18	Age 18	No	Yes	No	24,079	No
Seiro Town	Age 18	Age 18	No	No	No	13,986	Yes
Tagami Town	Age 18	Age 18	No	Yes	No	10,581	No
Aga Town	Age 18	Age 18	No	No	No	9,047	No
Tsunan Town	Age 18	Age 18	No	Yes	No	8,456	No
Yuzawa Town	Age 18	Age 18	No	No	No	8,268	No
Yahiko Village	Age 18	Age 18	No	No	No	7,534	No
Sekikawa Village	Age 18	Age 18	No	Yes	Yes	4,691	No
Kariwa Village	Age 18	Age 18	No	Yes	Yes	4,222	No
Izumozaki Town	Age 18	Age 18	No	No	No	3,886	No
Awashimaura Village	Age 18	Age 18	No	No	No	312	No

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)