Japan

306-0304 post code

Post code details

1 place

Code

Place

Koshu

Region

Ibaraki Ken

County

Sashima Gun

Coordinates

36.1372, 139.8059

Accuracy

—

Country

Japan

Location

OpenStreetMap ↗

36.1372, 139.8059© OpenStreetMap

Places under this code

Place	Region	County	Coordinates
Koshu	Ibaraki Ken	Sashima Gun	36.1372, 139.8059

Nearby codes

All →

306-0292 306-0300 306-0301 306-0302 306-0303 306-0305 306-0306 306-0307 306-0308 306-0311 306-0312 306-0313

Same code in other countries

This code only appears in this country.

FAQ

Which city is 306-0304 in?

Koshu, Ibaraki Ken, Japan.

What are the coordinates of 306-0304?

36.1372, 139.8059

Is 306-0304 used in other countries?

No.

The data is unofficial and has known truncation; verify with the recipient and carrier for critical shipments. See data source & license → · Updated 2026-11-09. Attribution in