最終確認日 · 掲載されている料金（円 / ¥）は目安です。 · Prices are approximate and for orientation only.
Overview & City Profile
Koga (古賀市, Koga-shi) is a city located in Fukuoka Prefecture, Japan. As of 29 February 2024, the city had an estimated population of 59,282 in 26981 households, and a population density of 1400 persons per km². The total area of the city is 42.07 km2 (16.24 sq mi).
Within Fukuoka Prefecture (Kyushu region), Koga (古賀市) serves as a city in fukuoka prefecture. Travelers exploring Fukuoka often combine a stop in Koga with regional highlights such as Nakasu & Tenjin open-air yatai food stalls, Dazaifu Tenmangu Shrine & Kyushu National Museum, Yanagawa canal punting boats, Mojiko Retro port in Kitakyushu, and Itoshima coast.
| 項目 | 基本データ：Koga (古賀市) |
|---|---|
| 日本語表記 | 古賀市 (Koga) |
| 行政区分 | City in Fukuoka Prefecture |
| Prefecture & Capital | Fukuoka Prefecture (Capital: Fukuoka) |
| 地方区分 | Kyushu |
| 人口 | 57,084 residents |
| 総面積・人口密度 | 42.11 km² · 1,356 people per km² |
| 市制施行・設立 | 1997-10-01 |
| 緯度・経度 | 33.7289°N, 130.47°E |
Getting to Koga & Getting Around
Via the regional hub (Hakata Station (Sanyo & Kyushu Shinkansen) & Fukuoka Airport (FUK, 5m by subway)): 2h 28m from Shin-Osaka or 5h from Tokyo on the Sanyo Shinkansen to Hakata; Fukuoka Airport (FUK) is a 5-minute subway ride from Hakata Station.
- Local rail & IC cards: Once in Fukuoka Prefecture, JR regional lines and local private railways connect Fukuoka with Koga. 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 Fukuoka have coin lockers for day-trippers. If you are stopping in Koga 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 Koga are accessible by train and taxi, renting a car from a major Shinkansen station or airport in Fukuoka can be rewarding for reaching mountain gorges, coastal viewpoints, and countryside onsen. Read our Renting a Car in Japan Guide.
Koga & Fukuokaの名物グルメ・郷土料理
Kogaでは、FukuokaおよびKyushu地方ならではの豊かな食文化を楽しめます。訪問時にぜひ味わいたい名物料理はこちらです：
- Hakata tonkotsu ramen (creamy pork-bone broth with thin straight noodles) — a signature specialty across Fukuoka Prefecture.
- Motsunabe (beef/pork offal & chive hotpot) — a signature specialty across Fukuoka Prefecture.
- Mizutaki (rich chicken hotpot) — a signature specialty across Fukuoka Prefecture.
- Karashi mentaiko (spicy cod roe) & Yanagawa unagi seiro-mushi — a signature specialty across Fukuoka Prefecture.
For dietary restrictions or food allergies, open our Japanese Phrasebook & Show-to-Staff Cards to display clear Japanese dietary explanations at restaurants in Koga.
Best Time to Visit & Seasonal Highlights
Late March–April for Maizuru Park cherry blossoms; July 1–15 for the thrilling Hakata Gion Yamakasa float race; year-round evening yatai street-food stalls.
Regional highlights across Fukuoka Prefecture that pair well with a visit to Koga include: Nakasu & Tenjin open-air yatai food stalls, Dazaifu Tenmangu Shrine & Kyushu National Museum, Yanagawa canal punting boats, Mojiko Retro port in Kitakyushu, and Itoshima coast.
Koga旅行の実用アドバイス・注意点
- Tourist information center (観光案内所): Look for the Kankō Annaijo counter at the regional hub (Hakata Station (Sanyo & Kyushu Shinkansen) & Fukuoka Airport (FUK, 5m by subway)) or major stations in Fukuoka Prefecture for free walking maps, bus timetables, and festival calendars.
- Cash & ATMs: While hotels, chain stores, and convenience stores in Koga 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.
よくある質問（FAQ）
Where is Koga (古賀市) located in Japan?
Koga (古賀市) is a city located in Fukuoka Prefecture in the Kyushu region of Japan (coordinates: 33.7289°N, 130.47°E). It has a population of approximately 57,084 across an area of 42.11 km².
How do I get to Koga by train?
Most visitors reach Koga via the main prefectural gateway of Hakata Station (Sanyo & Kyushu Shinkansen) & Fukuoka Airport (FUK, 5m by subway). 2h 28m from Shin-Osaka or 5h from Tokyo on the Sanyo Shinkansen to Hakata; Fukuoka Airport (FUK) is a 5-minute subway ride from Hakata Station. From the regional hub, connect by JR local/rapid lines, private commuter railways, or local bus to Koga. You can estimate long-distance rail costs using our Shinkansen Fare Calculator.
What local food is Koga and Fukuoka known for?
In Koga and across Fukuoka Prefecture, top local dishes include Hakata tonkotsu ramen (creamy pork-bone broth with thin straight noodles), Motsunabe (beef/pork offal & chive hotpot), Mizutaki (rich chicken hotpot), as well as Karashi mentaiko (spicy cod roe) & Yanagawa unagi seiro-mushi. Look for local ekiben (station bento boxes), morning markets, and family-run shokudo near the main station.
When is the best time of year to visit Koga?
Late March–April for Maizuru Park cherry blossoms; July 1–15 for the thrilling Hakata Gion Yamakasa float race; year-round evening yatai street-food stalls. Check our Japan Seasonal Calendar to compare month-by-month weather and crowd levels.
Official sources & further reading
Rules, prices and schedules change. Confirm details here before you travel: