Lake Toya Mapcode
洞爺湖·北海道
The mapcode for Lake Toya is 321 647 867*78.
Going somewhere that is not listed here? The app converts any Japanese address.
Details
- Mapcode
-
321 647 867*78 - Coordinates
42.601966, 140.895691- Address
- 〒049-5721 北海道虻田郡洞爺湖町洞爺湖温泉
- Japanese name
- 洞爺湖
About this place
Lake Toya is a caldera lake in southwestern Hokkaido, ringed by a road and overlooked by Mount Usu, an active volcano that last erupted in 2000. The mapcode here points at the Toyako Onsen shore, where the hotels and the visitor facilities are.
The lakeside road is a full loop, so a wrong turn costs you a circuit rather than a U-turn. Toyako Onsen is on the south shore; if your navigation offers a “Lake Toya” point it may well drop you on the far side of the water from where you meant to be.
Need a mapcode for somewhere else?
This site covers 30 places. Your hotel, the rental return lot, the restaurant you booked — those need mapcodes too, and they are not on this list. The app converts any Japanese address or place name, in English, Korean, Chinese or Japanese. Free.
How to enter this in your car navigation
- On the navigation home screen, choose Destination (目的地).
- Choose Mapcode (マップコード) from the search methods.
- Type the digits, then the asterisk and the last two digits.
- Confirm the map preview shows the right area before you set the route.
Most Japanese rental cars (Toyota, Nissan, Honda, Times, Orix) accept mapcodes. Some older units ignore the *nn suffix — that is fine, it only refines the pin.
Coordinates last verified 2026-07-13
Nearby places
Frequently asked questions
- What is the mapcode for Lake Toya?
- The mapcode is 321 647 867*78, pointing at a spot in 北海道. Written as decimal degrees the same point is 42.601966, 140.895691. A navigation unit takes the mapcode in far fewer keystrokes than the coordinates, so enter the code.
- What is a mapcode?
- A mapcode is a short numeric code that identifies a spot in Japan, developed by Denso. Japanese car navigation systems accept it directly, which avoids typing a Japanese address on a Japanese keyboard.
- How do I enter a mapcode in a Japanese rental car?
- On the navigation unit choose Destination (目的地), then Mapcode (マップコード), then type the digits. The two digits after the asterisk are an optional precision suffix; older units simply ignore them.
- What do the digits after the asterisk mean?
- They are a high-resolution suffix that narrows the point to roughly a few metres. Without them the code still resolves, just to a slightly wider area.