Iruma (入間市) Travel Guide & City Profile

Last reviewed: October 23, 2026 · Prices are approximate and for orientation only.

Overview & City Profile

Iruma (入間市, Iruma-shi; Japanese pronunciation: [í.ɾɯ̈̀.mä̀, ì.ɾɯ̈́.mä́.ɕì]) is a city located in Saitama Prefecture, Japan. As of 1 January 2021, the city had an estimated population of 147,166 in 66,516 households and a population density of 3,300 inhabitants per square kilometre (8,500/sq mi). The total area of the city is 44.69 square kilometres (17.25 sq mi).

Within Saitama Prefecture (Kanto region), Iruma (入間市) serves as a city in saitama prefecture. Travelers exploring Saitama often combine a stop in Iruma with regional highlights such as Kawagoe 'Little Edo' clay-walled warehouse district, Chichibu mountain shrines & Nagatoro river gorge, the Railway Museum in Omiya, and Omiya Bonsai Village.

Getting to Iruma & Getting Around

Via the regional hub (Omiya Station (Shinkansen & JR hub)): 30m from central Tokyo via JR Saikyo/Takasaki/Utsunomiya lines to Omiya, or 30–45m from Ikebukuro to Kawagoe (Tobu/Seibu) and Chichibu.

• Local rail & IC cards: Once in Saitama Prefecture, JR regional lines and local private railways connect Saitama with Iruma. Nationwide IC cards (Suica, Pasmo, Icoca) work on major urban and JR commuter gates; for rural branch lines or local buses, keep ¥1,000 bills and ¥100 coins handy for the onboard fare box.
• Luggage & station lockers: Main stations in Saitama have coin lockers for day-trippers. If you are stopping in Iruma en route between larger bases, check your suitcase dimensions in our Luggage & Locker Checker or forward big bags ahead with Takkyubin.
• Driving & car rental: While city centers around Iruma are accessible by train and taxi, renting a car from a major Shinkansen station or airport in Saitama can be rewarding for reaching mountain gorges, coastal viewpoints, and countryside onsen. Read our Renting a Car in Japan Guide.

What to Eat in Iruma & Saitama

Iruma shares the culinary traditions of Saitama Prefecture and the wider Kanto region. Don't miss these local specialties during your visit:

• Kawagoe sweet potato snacks & unagi (eel) — a signature specialty across Saitama Prefecture.
• Chichibu waraji katsu-don (pork cutlet) &くるみ (walnut) soba — a signature specialty across Saitama Prefecture.
• Soka senbei rice crackers — a signature specialty across Saitama Prefecture.
• Fukaya negi dishes — a signature specialty across Saitama Prefecture.

For dietary restrictions or food allergies, open our Japanese Phrasebook & Show-to-Staff Cards to display clear Japanese dietary explanations at restaurants in Iruma.

Best Time to Visit & Seasonal Highlights

October (3rd weekend) for Kawagoe Festival; late April–early May for Chichibu Hitsujiyama Park pink moss phlox (shibazakura); December 2–3 for Chichibu Night Festival.

Regional highlights across Saitama Prefecture that pair well with a visit to Iruma include: Kawagoe 'Little Edo' clay-walled warehouse district, Chichibu mountain shrines & Nagatoro river gorge, the Railway Museum in Omiya, and Omiya Bonsai Village.

Practical Travel Tips for Iruma

• Tourist information center (観光案内所): Look for the Kankō Annaijo counter inside or right outside the main train station in Iruma (or at Omiya Station (Shinkansen & JR hub)) for free walking maps, bus timetables, and festival calendars.
• Cash & ATMs: While hotels, chain stores, and convenience stores in Iruma accept international cards and IC payment, smaller family-run restaurants, shrines, and rural buses often prefer cash. 7-Eleven (Seven Bank) and Japan Post ATMs accept foreign debit cards reliably.
• Dining hours: Outside major metropolitan hubs, lunch typically runs 11:30 AM–2:00 PM and dinner spots open around 5:30 PM, with earlier last orders (around 8:00–9:00 PM) in smaller cities.