Koyu District, Miyazaki
Koyu (児湯郡 Koyu-gun?) is a district located in Miyazaki Prefecture, Japan.
As of 2003, the district has an estimated population of 78,392 and the density of 109.52 persons per km². The total area is 715.80 km².
Coordinates: 32°14′56″N 131°28′59″E / 32.249°N 131.483°E
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