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).

Condition	Municipalities	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%

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All 30 municipalities in Niigata 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
Niigata City	Age 18	Age 18	No	Yes	761,503
Nagaoka City	Age 18	Age 18	No	Yes	255,261
Sanjo City	Age 18	Age 18	No	Yes	91,178
Kashiwazaki City	Age 18	Age 18	No	Yes	76,217
Shibata City	Age 18	Age 18	No	Yes / No	91,677
Ojiya City	Age 18	Age 18	No	No	32,602
Kamo City	Age 18	Age 18	No	Yes / No	24,079
Tokamachi Citychanged	Age 18	Age 18	No	Yes	47,124
Mitsuke City	Age 18	Age 18	No	Yes	38,061
Murakami Citychanged	Age 18	Age 18	No	Yes / No	53,492
Tsubame City	Age 18	Age 18	No	Yes / No	75,935
Itoigawa City	Age 18	Age 18	No	No	38,041
Myoko Citychanged	Age 18	Age 18	No	No	29,514
Gosen City	Age 18	Age 18	No	Yes / No	45,690
Joetsu City	Age 18	Age 18	No	Yes	180,440
Agano City	Age 18	Age 18	No	No	39,165
Sado City	Age 18	Age 18	No	Yes / No	48,103
Uonuma City	Age 18	Age 18	No	No	32,522
Minamiuonuma City	Age 18	Age 18	No	Yes	52,376
Tainai City	Age 18	Age 18	No	Yes	26,791
Seiro Townchanged	Age 18	Age 18	No	No	13,986
Yahiko Village	Age 18	Age 18	No	No	7,534
Tagami Town	Age 18	Age 18	No	Yes / No	10,581
Aga Town	Age 18	Age 18	No	No	9,047
Izumozaki Town	Age 18	Age 18	No	No	3,886
Yuzawa Town	Age 18	Age 18	No	No	8,268
Tsunan Town	Age 18	Age 18	No	Yes / No	8,456
Kariwa Village	Age 18	Age 18	No	Yes	4,222
Sekikawa Village	Age 18	Age 18	No	Yes	4,691
Awashimaura Village	Age 18	Age 18	No	No	312

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)