Map of Itoigawa, Japan

Itoigawa is a city in Niigata, Japan, with a population of about 40,765. It lies at 37.0333°N, 137.8500°E. Itoigawa is about 223 km (138 mi) northwest of Tokyo, the capital. The nearest city on our map is Jōetsu, 37 km to the east.

Itoigawa at a glance

Where is Itoigawa?

• The 16th largest city in Niigata on this site.
• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 9 h 37 min on the shortest day to 14 h 42 min on the longest day (around 21 December and 21 June).

Cities near Itoigawa

• Jōetsu — 37 km east
• Kurobe-shi — 38 km west
• Uozu — 48 km southwest
• Nagano — 52 km southeast
• Namerikawa — 53 km southwest
• Nakano — 56 km southeast
• Suzaka — 60 km southeast
• Chikuma — 60 km south
• Toyama — 67 km southwest
• Imizu — 71 km southwest

Largest cities in Niigata

• Niigata — 797,591
• Nagaoka — 266,936
• Jōetsu — 189,430
• Shibata — 96,236
• Sanjō — 94,642
• Kashiwazaki — 86,183
• Tsubame — 77,382
• Niitsu-honchō — 65,910
• Murakami — 58,300
• Minamiuonuma — 55,354

Largest cities in Japan

• Tokyo — 9,733,276
• Yokohama — 3,777,491
• Osaka — 2,753,862
• Nagoya — 2,332,176
• Sapporo — 1,973,832
• Fukuoka — 1,612,392
• Kawasaki — 1,538,262
• Kobe — 1,525,152
• Kyoto — 1,463,723
• Saitama — 1,324,854

Map of Japan and all its cities →

Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.