Postal Codes

370-0304 Postcode

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Postal code 370-0304 covers Nitta Ichicho, Gumma Ken. A Japanese postal code is seven digits, written with a hyphen after the third. The figures below describe the municipality this code falls in — Japan publishes by municipality, not by postal code.

Municipality
Ota
In Japanese
大田区
Residents
737,187
Population density
11,917.0 /km²
Prefecture
Gumma Ken

Where 370-0304 is

Ota, Gumma Ken — the point recorded for this postal code. It marks the centre of the code, not its boundary.

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People
Residents737,187
Population density11,917.0 /km²
Where this code is
MunicipalityOta
In Japanese大田区
PrefectureGumma Ken
Area61.86 km²

Population and area by municipality, from Wikidata under CC0, joined to postal codes through the dantai code. GeoNames romanises Japanese place names and Japan's own statistics are keyed in kanji, so the join is by name within a prefecture rather than by a shared identifier. Figures describe the whole municipality, not the postal code.

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