Irabu was a town

Towns of Japan

A town is a local administrative unit in Japan. It is a local public body along with prefecture , city , and village...

 located in Miyako District, Okinawa

Okinawa Prefecture

is one of Japan's southern prefectures. It consists of hundreds of the Ryukyu Islands in a chain over long, which extends southwest from Kyūshū to Taiwan. Okinawa's capital, Naha, is located in the southern part of Okinawa Island...

, Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

.

On October 1, 2005 Irabu was merged with the towns of Gusukube

Gusukube, Okinawa

Gusukube was a town located in Miyako District, Okinawa, Japan.On October 1, 2005 Gusukube was merged with the towns of Irabu and Shimoji, and the village of Ueno, all from Miyako District, and the old city of Hirara, to form the new city of Miyakojima, Okinawa.As of 2003, the town had an...

 and Shimoji

Shimoji, Okinawa

was a town located in Miyako District, Okinawa, Japan.On October 1, 2005 Shimoji was merged with the towns of Gusukube and Irabu, and the village of Ueno, all from Miyako District, and the old city of Hirara, to form the new city of Miyakojima, Okinawa....

, and the village of Ueno

Ueno, Okinawa

was a village located in Miyako District, Okinawa, Japan.On October 1, 2005 Ueno was merged with the towns of Gusukube, Irabu and Shimoji, all from Miyako District, and the old city of Hirara, to form the new city of Miyakojima, Okinawa....

, all from Miyako District, and the old city of Hirara

Hirara, Okinawa

, was a city located in Okinawa, Japan on the island of Miyako.On October 1, 2005 Hirara was merged with the towns of Gusukube, Irabu and Shimoji, and the village of Ueno, all from Miyako District, to form the new city of Miyakojima, Okinawa....

, to form the new city of Miyakojima, Okinawa

Miyakojima, Okinawa

is a city on several islands in Okinawa Prefecture, Japan. It was formed on October 1, 2005 by the merger of the old city of Hirara, the towns of Gusukube, Irabu and Shimoji, and the village of Ueno, all from Miyako District, which as a result of the merger has one remaining village.Miyakojima has...

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As of 2003, the town had an estimated population

Population

A population is all the organisms that both belong to the same group or species and live in the same geographical area. The area that is used to define a sexual population is such that inter-breeding is possible between any pair within the area and more probable than cross-breeding with individuals...

 of 6,577 and a total area of 39.20 km², with a density

Population density

Population density is a measurement of population per unit area or unit volume. It is frequently applied to living organisms, and particularly to humans...

of 167.78 persons per km².