Postal Codes

300-1604 Postcode

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Postal code 300-1604 covers Yokosuka, Ibaraki 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
Yokosuka
In Japanese
横須賀市
Residents
390,275
Population density
3,871.0 /km²
Prefecture
Ibaraki Ken

Where 300-1604 is

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

People
Residents390,275
Population density3,871.0 /km²
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Where this code is
MunicipalityYokosuka
In Japanese横須賀市
PrefectureIbaraki Ken
Area100.82 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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