Postal Codes

290-0207 Postcode

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Postal code 290-0207 covers Amaariki, Chiba 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
Ichihara
In Japanese
市原市
Residents
268,038
Population density
728.0 /km²
Prefecture
Chiba Ken

Where 290-0207 is

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

People
Residents268,038
Population density728.0 /km²
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Where this code is
MunicipalityIchihara
In Japanese市原市
PrefectureChiba Ken
Area368.17 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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