Why the same dish costs different money
The same miso katsu moves by several hundred yen depending on where the shop stands. Rent and clientele, mostly. Districts that grew up as nightlife price themselves against expense accounts and drinking; districts that commuters cross every morning price themselves against one working lunch. Nagoya keeps both, ten minutes apart on the subway.
Every figure below is the median price band of the 472 shops in our data, cut district by district. Only districts with five or more shops are counted.
Nagoya Station is a tier below Sakae
Around Nagoya Station (59 shops) the median band is ¥2,000–3,000. In Sakae (65 shops) it is ¥3,000–4,000. Nearly the same number of restaurants, one clear step apart.
Sakae is where visitors go, so Sakae is where most people learn what Nagoya costs. In practice the station you already pass through twice a day is cheaper. Fushimi (47 shops) and Kanayama (31 shops) sit at Sakae's level — those three make up the expensive half of the city.
The interesting ¥2,000 districts
Osu (11 shops), Imaike (13), Ozone (16) and Atsuta (5) all sit in the same band as Nagoya Station — and all four feel nothing like it.
Osu is a temple market that turned into an arcade, and it rewards grazing. Imaike is where Taiwan ramen was invented and it runs late. Ozone and Atsuta are places people live. The right order is not "go there to save money" but "you were going anyway, and it happens to be cheaper."
Outside the city is cheaper again — but you pay in time
Ichinomiya (14 shops) and Seto (7) come in at ¥1,500–2,000, the lowest tier in this data. Okazaki (24) sits at ¥2,500, Toyohashi (18) at ¥3,000.
But Ichinomiya is twenty minutes out, and Seto and Toyohashi are further. Spending an hour of return travel to save a few hundred yen is a poor trade on a short trip. Go when there is another reason — pottery in Seto, curry udon and quail in Toyohashi — and treat the lower prices as a bonus.
What you order matters more than where
Cut the same data by dish and the spread is far wider. Miso-nikomi udon, Taiwan ramen and Taiwan mazesoba land at ¥1,000–1,500. Miso katsu, curry, udon, ramen, kishimen and ankake spaghetti at ¥1,500–2,000.
Hitsumabushi, yakiniku and yakitori sit at ¥4,000–5,000, and full washoku at ¥5,000 and up. The district gap is at most ¥1,500; the dish gap is ¥4,000. If the budget is tight, decide what you are eating before you decide where.
Where this data stops
These bands come from HOT PEPPER Gourmet listings and describe dinner, per person. Lunch usually runs below them — a set meal can drop near ¥1,000 at plenty of these same shops.
And 95 of the 567 shops carry no budget figure at all. Their absence says nothing about whether they are cheap or expensive. Each shop page prints that shop's own band; check there before you commit.